{"id":1577,"date":"2020-09-11T10:39:03","date_gmt":"2020-09-11T07:39:03","guid":{"rendered":"https:\/\/www.intheranostics.com\/prof\/?page_id=1577"},"modified":"2021-02-25T10:12:54","modified_gmt":"2021-02-25T07:12:54","slug":"ga-68-psma-pet-bt","status":"publish","type":"page","link":"https:\/\/www.intheranostics.com\/prof\/ga-68-psma-pet-bt\/","title":{"rendered":"Ga-68 PSMA PET\/BT"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;4.4.8&#8243; background_color=&#8221;rgba(0,0,0,0)&#8221; background_image=&#8221;https:\/\/www.intheranostics.com\/wp-content\/uploads\/2020\/06\/metastatik_prostat_kanseri.jpg&#8221; custom_padding=&#8221;100px||100px||false|false&#8221; locked=&#8221;off&#8221;][et_pb_fullwidth_header title=&#8221;Ga-68 PSMA PET\/BT&#8221; text_orientation=&#8221;center&#8221; content_max_width_last_edited=&#8221;off|desktop&#8221; _builder_version=&#8221;4.4.8&#8243; title_font_size=&#8221;50px&#8221; content_font_size=&#8221;41px&#8221; subhead_font=&#8221;|700|||||||&#8221; subhead_font_size=&#8221;38px&#8221; subhead_line_height=&#8221;1.1em&#8221; background_enable_color=&#8221;off&#8221; background_enable_image=&#8221;off&#8221; custom_margin=&#8221;||||false|false&#8221; custom_padding=&#8221;||||false|false&#8221; animation_style=&#8221;slide&#8221; animation_direction=&#8221;bottom&#8221;][\/et_pb_fullwidth_header][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.4.8&#8243; custom_margin=&#8221;0px||0px||false|false&#8221; custom_padding=&#8221;0px|0px|0px|0px|false|false&#8221;][et_pb_row _builder_version=&#8221;4.4.8&#8243; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px|0px|0px|0px|false|false&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.4.8&#8243;][et_pb_divider divider_weight=&#8221;0px&#8221; _builder_version=&#8221;4.4.8&#8243; use_background_color_gradient=&#8221;on&#8221; background_color_gradient_start=&#8221;#8dd2e1&#8243; background_color_gradient_end=&#8221;#23afca&#8221; background_color_gradient_direction=&#8221;90deg&#8221; width=&#8221;50%&#8221; module_alignment=&#8221;center&#8221; height=&#8221;10px&#8221;][\/et_pb_divider][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;4.4.8&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; custom_margin=&#8221;||||false|false&#8221; custom_padding=&#8221;0px|0px|0px|0px|false|false&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; custom_padding=&#8221;|||&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.4.8&#8243;]<\/p>\n<h2 class=\"p2\"><span class=\"s1\"><strong>Ga-68 PSMA PET\/BT;<\/strong><\/span><\/h2>\n<h3><span class=\"s1\"><b>Endikasyon<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\">1) Y\u00fcksek riskli hastal\u0131kta cerrahi i\u015flem ya da radyoterapi planlamas\u0131 \u00f6ncesi primer evrelemede,<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">2) Radikal prostatektomi sonras\u0131 devam eden PSA y\u00fcksekli\u011fi veya radikal prostatektomi\/radyoterapi sonras\u0131 geli\u015fen PSA n\u00fcks\u00fc olan hastalarda t\u00fcm\u00f6r dokusunu g\u00f6stermede,<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">3) Tedaviye yan\u0131t\u0131n de\u011ferlendirilmesinde endikedir.<\/span><\/p>\n<h3 class=\"p4\"><span class=\"s1\"><b>Galyum-68 PSMA PET\/BT Nedir?<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\"><b><a title=\"Teranostik nedir hekim\" href=\"https:\/\/www.intheranostics.com\/prof\/teranostik-nedir\/\" target=\"_blank\" rel=\"noopener noreferrer\">Teranostik<\/a>\u00a0<\/b>t\u0131p d\u00fcnyas\u0131nda yeni geli\u015fmekte olan bir aland\u0131r. T\u00fcm\u00f6re \u00f6zg\u00fcl bir ila\u00e7 ile g\u00f6r\u00fcnt\u00fcleme yaparak saptanan t\u00fcm\u00f6r ve metastazlar\u0131n\u0131n, nereye gidece\u011fi-ne kadar gidece\u011fi ve hastal\u0131kl\u0131 dokuyu etkileme g\u00fcc\u00fc \u00f6nceden bilinen yine \u00f6zg\u00fcl bir ila\u00e7 ile tedavi edilebildi\u011fi bir yakla\u015f\u0131md\u0131r. Bu yakla\u015f\u0131m, geleneksel t\u0131ptan ki\u015fiye \u00f6zg\u00fc \u00e7a\u011fda\u015f t\u0131p uygulamalar\u0131na ge\u00e7i\u015f yap\u0131lmas\u0131n\u0131 sa\u011flamaktad\u0131r. <\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">Prostat kanserinde, bir yandan\u00a0<b>Ga-68 PSMA PET\/BT<\/b>\u00a0ile prostat kanserine ait t\u00fcm\u00f6ral dokular y\u00fcksek duyarl\u0131l\u0131k ve \u00f6zg\u00fcll\u00fckte g\u00f6r\u00fcnt\u00fclenebilmekte, di\u011fer yandan\u00a0<a href=\"https:\/\/www.intheranostics.com\/prof\/lutesyum-177-psma\/\"><b>Lu-177 PSMA<\/b><\/a>\u00a0ile bu t\u00fcm\u00f6ral dokular\u0131n \u00f6zg\u00fcl ve hedefe y\u00f6nelik tedavisi yap\u0131labilmektedir.\u00a0<\/span><span class=\"s2\">Bu, teranostik uygulamalar i\u00e7in olduk\u00e7a ba\u015far\u0131l\u0131 ve yeni bir y\u00f6ntemdir.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">Metastatik prostat kanserinde standart g\u00f6r\u00fcnt\u00fcleme, geleneksel olarak MR, BT ve t\u00fcm v\u00fccut kemik sintigrafisi\/taramas\u0131n\u0131 i\u00e7ermektedir. Ancak bu g\u00f6r\u00fcnt\u00fcleme y\u00f6ntemlerinin duyarl\u0131l\u0131\u011f\u0131, \u00f6zellikle oligometastatik durumda ve d\u00fc\u015f\u00fck PSA seviyelerinde olduk\u00e7a d\u00fc\u015f\u00fckt\u00fcr. Standart g\u00f6r\u00fcnt\u00fclemeler i\u00e7in di\u011fer yandan \u00f6zg\u00fcll\u00fckte de s\u0131n\u0131rl\u0131l\u0131klar bulunmaktad\u0131r. \u00d6yle ki, BT\u2019deki benign lenf d\u00fc\u011f\u00fcm\u00fc b\u00fcy\u00fcmeleri ya da kemik sintigrafisindeki benign kemik lezyonlar\u0131, metastaz y\u00f6n\u00fcnde hatal\u0131 de\u011ferlendirmelere neden olmaktad\u0131r. Bu s\u0131n\u0131rl\u0131l\u0131klar nedeniyle, prostat kanserli hastalar i\u00e7in yeni g\u00f6r\u00fcnt\u00fcleme modalitelerine ihtiya\u00e7 duyulmaktad\u0131r.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">Prostat spesifik membran antijeni (PSMA), prostat h\u00fccrelerinin h\u00fccre y\u00fczeyinde eksprese edilen bir transmembran proteindir ve PSMA\u2019n\u0131n, artan h\u00fccre displazisi ile ekspresyonu da artt\u0131\u011f\u0131 bilinmektedir. Prostat kanseri i\u00e7in do\u011frulanm\u0131\u015f iyi bir hedef olan PSMA\u2019ya ba\u011flanabilen bir\u00e7ok k\u00fc\u00e7\u00fck molek\u00fcl geli\u015ftirilmi\u015ftir. Bunlardan baz\u0131lar\u0131 da Galyum-68 ba\u015fta olmak \u00fczere radyoaktif elementler ile i\u015faretlenerek N\u00fckleer T\u0131p\u2019ta, \u00f6zellikle de PET\/BT g\u00f6r\u00fcnt\u00fclemesinde kullan\u0131lmaya ba\u015flanm\u0131\u015ft\u0131r.<\/span><\/p>\n<p class=\"p6\"><span class=\"s1\">Mevcut bilimsel kan\u0131tlara bak\u0131ld\u0131\u011f\u0131nda, Ga-68 PSMA PET\/BT\u2019nin klinik karar vermeyi \u00f6nemli \u00f6l\u00e7\u00fcde etkiledi\u011fi g\u00f6r\u00fclmektedir. Tabii ki bunda Ga-68 PSMA PET\/BT\u2019nin alternatif tekniklere k\u0131yasla \u00fcst\u00fcn duyarl\u0131l\u0131k ve \u00f6zg\u00fcll\u00fck de\u011ferlerini sa\u011flayarak\u00a0<b>prostat kanserinde, k\u00fc\u00e7\u00fck hacimli metastazlar\u0131 erken ve do\u011fru saptaman\u0131n \u00f6nemi b\u00fcy\u00fckt\u00fcr.<\/b><\/span><\/p>\n<h3 class=\"p4\"><span class=\"s1\"><b>Galyum-68 PSMA PET\/BT T\u00fcm\u00f6r Oda\u011f\u0131n\u0131 Nas\u0131l G\u00f6sterir?<\/b><\/span><\/h3>\n<p class=\"p5\"><span class=\"s1\">Ga-68 PSMA PET\/BT, prostat kanserini, artm\u0131\u015f prostata \u00f6zg\u00fc membran antijeni (PSMA, glutamat karboksipeptidaz II) ekspresyonu varl\u0131\u011f\u0131yla g\u00f6r\u00fcnt\u00fcleyen noninvazif bir g\u00f6r\u00fcnt\u00fcleme y\u00f6ntemidir. PSMA, \u00f6zellikle t\u00fcm prostat dokusunda bulunan bir transmembran proteindir ve PSMA ekspresyonu en \u00e7ok prostat kanserinde olmak \u00fczere, farkl\u0131 malignitelerde g\u00f6r\u00fclmektedir. Prostat adenokarsinomlar\u0131n\u0131n neredeyse t\u00fcm primer ve metastatik lezyonlar\u0131 PSMA ekspresyonu g\u00f6stermektedir. \u0130mm\u00fcnohistokimyasal \u00e7al\u0131\u015fmalar, de-diferansiye, metastatik veya hormona diren\u00e7li hastal\u0131k durumunda PSMA ekspresyonunun artt\u0131\u011f\u0131n\u0131 ve ekspresyon seviyesinin hastal\u0131k i\u00e7in \u00f6nemli bir prognostik g\u00f6sterge oldu\u011funu g\u00f6stermi\u015ftir.<\/span><\/p>\n<p class=\"p6\"><span class=\"s1\">68Ga, s\u0131kl\u0131kla Germanyum-68\/Galyum-68 jenerat\u00f6r sistemlerinden elde edilen, fiziksel yar\u0131 \u00f6mr\u00fc 67.63 dakika olan radyoaktif bir elementtir. PSMA-11, PSMA-617 ve PSMA-I&amp;T gibi 68Ga ile kompleks yapan d\u00fc\u015f\u00fck molek\u00fcl a\u011f\u0131rl\u0131kl\u0131 PSMA ligandlar\u0131 PET\/BT g\u00f6r\u00fcnt\u00fclemesi i\u00e7in \u00f6zel haz\u0131rlanm\u0131\u015f olup, t\u00fcm bu radyoligandlar t\u00fcm\u00f6r dokusunu saptamada benzer \u00f6zelliklere sahiptir.<\/span><\/p>\n<h3 class=\"p1\"><span class=\"s1\"><b>Galyum-68 PSMA PET\/BT Kimlere Uygulan\u0131r?<\/b><\/span><\/h3>\n<p class=\"p6\"><span class=\"s1\">Varolan bilimsel veriler Ga-68 PSMA PET\/BT g\u00f6r\u00fcnt\u00fclemesini, \u00f6zellikle prostat k\u00f6kenli kanser odaklar\u0131n\u0131n belirlenmesi amac\u0131yla kullan\u0131m\u0131n\u0131 desteklemektedir. Bu y\u00f6ntemle; BT, MR ve kemik sintigrafisi gibi geleneksel g\u00f6r\u00fcnt\u00fcleme metotlar\u0131 ile saptanamam\u0131\u015f k\u00fc\u00e7\u00fck metastazlar bile g\u00f6r\u00fcnt\u00fclenebilmektedir.\u00a0Ga-68 PSMA PET\/BT ba\u015fl\u0131ca \u015fu ama\u00e7lar i\u00e7in kullan\u0131lmaktad\u0131r:\u201d<\/span><\/p>\n<h3 class=\"p8\"><span class=\"s1\"><b>Avrupa \u00dcroloji Derne\u011fi Perspektifi<\/b><\/span><\/h3>\n<p class=\"p5\"><span class=\"s1\">Prostat kanserinde Ga-68 PSMA PET\/BT g\u00f6r\u00fcnt\u00fclemesi, \u00e7ok d\u00fc\u015f\u00fck serum PSA seviyelerindeki biyokimyasal n\u00fcks\u00fcn belirlenmesi i\u00e7in, \u201cAvrupa \u00dcroloji Derne\u011fi Prostat Kanseri K\u0131lavuzu\u201d gibi, b\u00fcy\u00fck klinik k\u0131lavuzlarda yerini almaya ba\u015flam\u0131\u015ft\u0131r.<\/span><\/p>\n<p class=\"p9\"><span class=\"s1\">Biyokimyasal n\u00fcks hastalar\u0131nda g\u00f6r\u00fcnt\u00fcleme; uzak metastazlar\u0131n saptanmas\u0131nda ve lokal n\u00fcks\u00fcn saptanmas\u0131 ve lokalizasyonunda rol oynama potansiyeline sahiptir. Biyokimyasal n\u00fcks varl\u0131\u011f\u0131nda, metastazlar\u0131n erken saptanmas\u0131, hem primer radyoterapi sonras\u0131 hem de radikal prostatektomi sonras\u0131 klinik olarak son derece \u00f6nemlidir. Primer radyoterapi sonras\u0131 lokal n\u00fcks i\u00e7in yap\u0131lacak kurtarma tedavileri \u00f6nemli morbiditeye neden olaca\u011f\u0131ndan, bu hastalarda yarars\u0131z kurtarma tedavilerinin olas\u0131 morbiditesinden ka\u00e7\u0131nmak i\u00e7in metastatik hastalar\u0131n m\u00fcmk\u00fcn olan en y\u00fcksek duyarl\u0131l\u0131kta saptanmas\u0131 gereklidir. Di\u011fer yandan, kemik taramas\u0131 ve MRI ile standart g\u00f6r\u00fcnt\u00fcleme, PSA\u2019s\u0131 2 ng\/mL\u2019nin alt\u0131nda olan radikal prostatektomili erkeklerde d\u00fc\u015f\u00fck lezyon saptama oran\u0131na sahiptir. Bununla birlikte, Ga-68 PSMA PET\/BT\u2019nin radikal prostatektomi sonras\u0131 bu hasta grubunda da, rezid\u00fcel kanseri g\u00f6stererek kurtarma radyoterapisi planlamas\u0131na rehberlik edebilece\u011fi g\u00f6sterilmi\u015ftir.<\/span><\/p>\n<p class=\"p9\"><span class=\"s1\">Kan\u0131tlar, Ga-68 PSMA PET\/BT\u2019nin lenf nodu ve kemik metastazlar\u0131n\u0131 saptamada, klasik kemik sintigrafisi ve abdominopelvik BT\u2019den \u00e7ok daha duyarl\u0131 oldu\u011funu g\u00f6stermektedir.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\"><b>Klinik olarak anlaml\u0131 PSA relaps\u0131<\/b>: Tedavi ba\u015far\u0131s\u0131zl\u0131\u011f\u0131n\u0131 tan\u0131mlayan PSA d\u00fczeyi, uygulanan primer tedaviye (radikal prostatektomi veya primer radyoterapi) ba\u011fl\u0131 olarak de\u011fi\u015fir. Radikal prostatektomiden sonra, metastaz\u0131 en iyi tahmin eden PSA e\u015fik de\u011feri &gt; 0.4 ng\/mL\u2019dir. Bununla birlikte, ultra duyarl\u0131 PSA testine eri\u015fim ile bu seviyenin \u00e7ok daha alt\u0131ndaki PSA art\u0131\u015flar\u0131 saptanabilmektedir. Primer radyoterapiden sonraki ba\u015far\u0131s\u0131zl\u0131\u011f\u0131n\u0131n tan\u0131m\u0131 ise tedavi sonras\u0131 (nadir) PSA de\u011ferinden ba\u011f\u0131ms\u0131z olarak, nadir PSA de\u011ferinden &gt; 2 ng\/mL\u2019den daha y\u00fcksek PSA art\u0131\u015f\u0131d\u0131r.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">Avrupa \u00dcroloji Derne\u011fi Prostat Kanseri K\u0131lavuzu\u2019na 2019\u2019da eklenen de\u011fi\u015fiklikler sonras\u0131nda, \u201cbiyokimyasal n\u00fcks\u00fc olan hastalarda g\u00f6r\u00fcnt\u00fcleme talimatlar\u0131\u201d ba\u015fl\u0131\u011f\u0131 alt\u0131nda bulun PSMA PET\/BT endikasyonlar\u0131 \u015f\u00f6yledir:<\/span><\/p>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td1\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\"><b>Radikal prostatektomi sonras\u0131 devam eden PSA y\u00fcksekli\u011fi saptanan hastalarda<\/b><\/span><\/p>\n<\/td>\n<td class=\"td1\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Metastatik hastal\u0131\u011f\u0131 d\u0131\u015flamak i\u00e7in, devam eden PSA &gt; 0.2 ng\/mL olan erkeklere\u00a0<\/span><span class=\"s3\">Ga-68 PSMA<\/span><span class=\"s1\">\u00a0PET\/BT taramas\u0131 yap\u0131n.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td2\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\"><b>Radikal prostatektomi sonras\u0131, prostat spesifik antijen (PSA) n\u00fcks saptatan hastalarda<\/b><\/span><\/p>\n<\/td>\n<td class=\"td2\" valign=\"top\">\n<p class=\"p2\"><span class=\"s1\">PSA seviyesi &gt; 0,2 ng\/mL ise ve g\u00f6r\u00fcnt\u00fcleme sonu\u00e7lar\u0131, sonraki tedavi kararlar\u0131n\u0131 etkileyecekse Ga-68 PSMA PET\/BT yap\u0131n.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td3\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\"><b>Radyoterapi sonras\u0131 PSA n\u00fcks\u00fc olan hastalarda<\/b><\/span><\/p>\n<\/td>\n<td class=\"td3\" valign=\"top\">\n<p class=\"p2\"><span class=\"s1\">K\u00fcratif kurtarma tedavisi i\u00e7in uygun hastalarda Ga-68 PSMA PET\/BT yap\u0131n.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 class=\"p8\"><span class=\"s1\"><b><br \/>EANM\/SNMMI Perspektifi<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\">Ga-68 PSMA PET\/BT\u2019nin farkl\u0131 klinik durumlarda (tedavi \u00f6ncesi ilk evreleme, farkl\u0131 primer tedaviler sonras\u0131 yeniden evreleme, ilerlemi\u015f hastal\u0131k gibi), prostat kanserli hastalar\u0131n evrelenmesi ve y\u00f6netimi \u00fczerine etkilerine bak\u0131ld\u0131\u011f\u0131nda, Ga-68 PSMA PET\/BT \u00f6ncesi hekimi taraf\u0131ndan belirlenmi\u015f hastal\u0131k evresinin, olgular\u0131n %69\u2019unda Ga-68 PSMA PET\/BT sonras\u0131 de\u011fi\u015fti\u011fi g\u00f6r\u00fclmektedir. Bu de\u011fi\u015fiklik %38 olguda \u201cupstaging\u201d, %30 olguda ise \u201cdownstaging\u201d \u015feklindedir. Bu de\u011fi\u015fim t\u00fcm klinik senaryolar i\u00e7in ge\u00e7erlidir ve beklendi\u011fi gibi, evreleme \u00fczerindeki en d\u00fc\u015f\u00fck etki, cerrahi sonras\u0131 serum PSA seviyeleri \u22640.2 ng\/mL olan olgularda saptanm\u0131\u015ft\u0131r (%31, t\u00fcm\u00fc de \u201cdownstaging\u201d).<\/span><\/p>\n<p class=\"p11\"><span class=\"s1\">Ga-68 PSMA PET\/BT\u2019nin, farkl\u0131 klinik durumdaki prostat kanseri hastalar\u0131n\u0131n tedavi yakla\u015f\u0131m\u0131 \u00fczerindeki etkisine bakt\u0131\u011f\u0131m\u0131zda ise olgular\u0131n %57\u2019sinde tedavi yakla\u015f\u0131m\u0131nda de\u011fi\u015fikli\u011fe neden oldu\u011fu g\u00f6r\u00fclm\u00fc\u015ft\u00fcr. Olgularda en s\u0131k g\u00f6r\u00fclen de\u011fi\u015fim, sistemik tedaviden fokal tedaviye ge\u00e7i\u015f (%16) ve fokal tedavilerdeki de\u011fi\u015fiklik (%10) \u015feklinde olmu\u015ftur.<\/span><\/p>\n<h3 class=\"p14\"><span class=\"s1\"><b>N\u00fcks Prostat Kanserinde T\u00fcm\u00f6r Dokusunun G\u00f6sterilmesi<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\">N\u00fcks b\u00f6lgesini tan\u0131mlamak ve muhtemelen kurtarma tedavisine y\u00f6nlendirmek amac\u0131yla,<span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>PSA de\u011feri 0,2 ile 10 ng\/mL aras\u0131nda olan hastalarda \u00f6nerilmektedir. Daha k\u0131sa PSA ikiye katlanma s\u00fcreleri (doubling time, PSADT) olan ve daha y\u00fcksek ba\u015flang\u0131\u00e7 Gleason skorlar\u0131 olan hastalarda ise Ga-68 PSMA PET\/BT ile daha y\u00fcksek duyarl\u0131l\u0131\u011fa ula\u015f\u0131lmaktad\u0131r. Art\u0131k bu d\u00fc\u015f\u00fck PSA seviyelerinde konvansiyonel g\u00f6r\u00fcnt\u00fclemenin (BT, MR, kemik sintigrafisi) olduk\u00e7a yarars\u0131z oldu\u011fu anlay\u0131\u015f\u0131na sahibiz.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">Radikal prostatektomi sonras\u0131 farkl\u0131 artm\u0131\u015f PSA seviyelerinde, Ga-68 PSMA PET\/BT\u2019nin pozitiflik oranlar\u0131 \u015fu \u015fekilde \u00f6zetlenebilir.<\/span><\/p>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td4\" valign=\"top\">\n<p class=\"p5\"><span class=\"s4\"><b>PSA d\u00fczeyi (ng\/mL)<\/b><\/span><\/p>\n<\/td>\n<td class=\"td5\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\"><b>Pozitif Ga-68 PSMA PET\/BT oran\u0131<\/b><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td6\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">0 \u2013 0.19<\/span><\/p>\n<\/td>\n<td class=\"td7\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%33<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td4\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">0.2 \u2013 0.49<\/span><\/p>\n<\/td>\n<td class=\"td5\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%42<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td4\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">0.5 \u2013 0.99<\/span><\/p>\n<\/td>\n<td class=\"td5\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%59<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td6\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">1 \u2013 1.99<\/span><\/p>\n<\/td>\n<td class=\"td7\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%75<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td4\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">&gt;2<span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<\/td>\n<td class=\"td5\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%95<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td4\" valign=\"top\">\n<p class=\"p5\"><span class=\"s4\"><b>N\u00fcks yeri<\/b><\/span><\/p>\n<\/td>\n<td class=\"td5\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\"><b>Pozitif Ga-68 PSMA PET\/BT oran\u0131<\/b><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td6\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Prostat yata\u011f\u0131<\/span><\/p>\n<\/td>\n<td class=\"td7\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%27<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td4\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Lenf nodu \u2013 pelvik<\/span><\/p>\n<\/td>\n<td class=\"td5\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%40<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td4\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Lenf nodu \u2013 ekstraprostatik<\/span><\/p>\n<\/td>\n<td class=\"td5\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%21<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td6\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Kemik<\/span><\/p>\n<\/td>\n<td class=\"td7\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%30<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td4\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Distal organ<\/span><\/p>\n<\/td>\n<td class=\"td5\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">%10<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"p5\"><span class=\"s1\">PSA ikiye katlanma s\u00fcreleri (PSADT) ile pozitif PET\/BT PSMA oranlar\u0131 aras\u0131nda da s\u0131k\u0131 bir korelasyon vard\u0131r. \u015e\u00f6yle ki:<\/span><\/p>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td8\" valign=\"top\">\n<p class=\"p11\"><span class=\"s4\"><b>PSADT<\/b><\/span><\/p>\n<\/td>\n<td class=\"td9\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\"><b>Pozitif Ga-68 PSMA PET\/BT oran\u0131<\/b><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td10\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Uzun\u00a0(&gt;6 ay)<\/span><\/p>\n<\/td>\n<td class=\"td11\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">%64<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td8\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">K\u0131sa<span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>(&lt;6ay)<\/span><\/p>\n<\/td>\n<td class=\"td9\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">%92<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 class=\"p14\"><span class=\"s1\"><b>Y\u00fcksek Riskli Hastal\u0131kta Cerrahi Prosed\u00fcr ya da Radyoterapi Planlamas\u0131 \u00d6ncesi Primer Evreleme Yap\u0131lmas\u0131<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\">Y\u00fcksek riskli hastal\u0131\u011f\u0131 olan hastalarda (Gleason skoru &gt;7, PSA &gt;20 ng\/mL, klinik evre T2c \u2013 3a) lenf nodu ve kemik metastaz\u0131 olas\u0131l\u0131\u011f\u0131 artm\u0131\u015ft\u0131r.<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">Bir\u00e7ok \u00e7al\u0131\u015fmada, primer evrelemede Ga-68 PSMA PET\/BT\u2019nin, metastaz saptamada BT, MR veya kemik taramas\u0131na k\u0131yasla \u00fcst\u00fcn oldu\u011fu g\u00f6sterilmi\u015ftir. BT veya MR ile anatomik olarak saptanamam\u0131\u015f lenf nodu metastazlar\u0131n\u0131n saptanmas\u0131 da hasta y\u00f6netimini \u00f6nemli \u00f6l\u00e7\u00fcde etkileyebilmektedir. Ancak Ga-68 PSMA PET\/BT ile birlikte gelen geli\u015fmi\u015f duyarl\u0131l\u0131\u011f\u0131n genel sa\u011f kal\u0131m \u00fczerindeki etki hen\u00fcz yan\u0131t beklemektedir. Ayr\u0131ca \u00f6n veriler, Ga-68 PSMA PET\/BT\u2019nin kemik metastazlar\u0131n\u0131 saptamada da daha do\u011fru sonu\u00e7lar verdi\u011fini<span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>g\u00f6stermi\u015ftir. Bununla birlikte, lokal t\u00fcm\u00f6r\u00fcn tan\u0131mlanmas\u0131nda, Ga-68 PSMA PET\/BT pelvik MR\u2019\u0131n yerini alamamaktad\u0131r.<\/span><\/p>\n<h3 class=\"p14\"><span class=\"s1\"><b>Yeni Klinik Endikasyonlar<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\">PSMA hedefli radyoligand (Lu-177 PSMA) tedavisi \u00f6ncesi ve tedavisi s\u0131ras\u0131nda evreleme (esas olarak metastatik kastrasyona diren\u00e7li prostat kanserinde) Lu-177 PSMA vb. hedefe y\u00f6nelik tedavi \u00f6ncesi g\u00f6r\u00fcnt\u00fcleme (\u00f6rn. Lu-177 PSMA), t\u00fcm\u00f6ral PSMA ekspresyonun varl\u0131\u011f\u0131n\u0131 ve yo\u011funlu\u011funu belirlemek i\u00e7in \u00e7ok \u00f6nemlidir. Hedef lezyonlardaki d\u00fc\u015f\u00fck PSMA ekspresyonu, radyoligand tedavisi i\u00e7in de kontrendikasyondur. Dikkat edilmesi gereken bir di\u011fer nokta da Ga-68 PSMA PET\/BT\u2019nin prostat kanserli hastalar\u0131n yakla\u015f\u0131k %5\u2019i kadar\u0131nda yanl\u0131\u015f negatif sonu\u00e7 verdi\u011fidir. Ayr\u0131ca, ileri d\u00f6nem metastatik kastrasyona diren\u00e7li prostat kanseri hastalar\u0131nda, metastazlar\u0131n (ba\u015fl\u0131ca karaci\u011ferde) PSMA ekspresyonunu kaybedebilece\u011fi de bildirilmi\u015ftir.<\/span><\/p>\n<h3 class=\"p16\"><span class=\"s1\"><b>\u00d6nceki Biyopsisi Negatif Ancak Prostat Kanseri \u015e\u00fcphesi Y\u00fcksek Hastalarda Biyopsiye K\u0131lavuzluk<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\">\u0130lk veriler prostat kanseri \u015f\u00fcphesi y\u00fcksek olan hastalarda, Ga-68 PSMA PET\/BT\u2019nin, tekrarlanan biyopsilere k\u0131lavuzluk etmede de\u011ferli olabilece\u011fini g\u00f6stermektedir. Bu durumda tercihen Ga-68 PSMA PET\/BT g\u00f6r\u00fcnt\u00fcleri multiparametrik MRI ile birle\u015ftirilmelidir.<\/span><\/p>\n<h3 class=\"p8\"><span class=\"s1\"><b>Metastatik Prostat Kanserinde Sistemik Tedaviye Yan\u0131t\u0131n De\u011ferlendirilmesi<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\">Tedaviye yan\u0131t\u0131n anatomik de\u011ferlendirilmesinde RECIST 1.1\u2019in yeri, \u00f6l\u00e7\u00fclemeyen lenf nodu ve sklerotik kemik metastazlar\u0131n\u0131n y\u00fcksek prevalans\u0131 nedeniyle k\u0131s\u0131tl\u0131d\u0131r. Kemik taramas\u0131 ise tedavi sonras\u0131 geli\u015fen alevlenme (flare) fenomeni nedeniyle hatal\u0131 de\u011ferlendirmeye neden olabilmektedir. B\u00f6yle bir ortamda sistemik hastal\u0131\u011f\u0131n izlenmesi Ga-68 PSMA PET\/BT i\u00e7in potansiyel bir uygulama alan\u0131 haline gelebilir. Bununla birlikte, Ga-68 PSMA PET\/BT\u2019nin \u015fu an i\u00e7in di\u011fer y\u00f6ntemlerin s\u0131n\u0131rlamalar\u0131n\u0131n \u00fcstesinden gelip gelmedi\u011fi ve daha \u00fcst\u00fcn oldu\u011fu hen\u00fcz kan\u0131tlanamam\u0131\u015ft\u0131r.<\/span><\/p>\n<h3 class=\"p5\"><span class=\"s1\"><b>PSMA PET\/BT Progresyon (PPP) Kriterleri<\/b><\/span><\/h3>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td12\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\"><b>Progresyon Kriterleri<\/b><\/span><\/p>\n<\/td>\n<td class=\"td13\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\"><b>A\u00e7\u0131klama<\/b><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td14\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">\u22652 yeni PSMA pozitif lezyon<\/span><\/p>\n<\/td>\n<td class=\"td15\" valign=\"top\">\n<p class=\"p2\"><span class=\"s1\">\u22652 yeni PSMA pozitif uzak lezyon saptanmas\u0131<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td16\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">1 yeni PSMA pozitif lezyon<\/span><\/p>\n<\/td>\n<td class=\"td17\" valign=\"top\">\n<p class=\"p2\"><span class=\"s1\">1 yeni PSMA pozitif lezyonun saptanmas\u0131 art\u0131 uyumlu klinik ve\/veya laboratuvar veri varl\u0131\u011f\u0131nda, Ga-68 PSMA PET\/BT sonras\u0131 3 ay i\u00e7inde biyopsi veya korelatif g\u00f6r\u00fcnt\u00fcleme ile konfirmasyon \u00f6nerilir, ancak \u015fart de\u011fil.\u00a0<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td18\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Yeni lezyon yok ancak boyut art\u0131yor<\/span><\/p>\n<\/td>\n<td class=\"td19\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Boyut veya PSMA tutulumunda \u226530 art\u0131\u015f\u0131n saptanmas\u0131 art\u0131 uyumlu klinik ve\/veya laboratuvar veri varl\u0131\u011f\u0131nda, Ga-68 PSMA PET\/BT sonras\u0131 3 ay i\u00e7inde biyopsi veya korelatif g\u00f6r\u00fcnt\u00fcleme ile konfirme edilmelidir.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 class=\"p16\"><span class=\"s1\"><b>Farkl\u0131 Tedaviler \u0130\u00e7in \u00d6zel \u00d6neriler<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s5\">Ga-68 PSMA<\/span><span class=\"s1\">\u00a0PET\/BT ile tedaviye yan\u0131t\u0131n de\u011ferlendirildi\u011fi durumlarda, kemoterapi i\u00e7in 4 hafta, radyoterapi i\u00e7in 8 hafta beklenilmesi \u00f6nerilir. Cerrahi sonras\u0131nda ise daha da uzun s\u00fcre beklemek gerekebilir. \u00d6nerilen bu zaman aral\u0131klar\u0131, prospektif verilerin olmamas\u0131na kar\u015f\u0131n s\u0131kl\u0131kla klinik rutinde uygulanmaktad\u0131r. Asl\u0131nda Ga-68 PSMA PET\/BT g\u00f6r\u00fcnt\u00fcleme i\u00e7in gerekli olan g\u00fcvenilir zaman aral\u0131\u011f\u0131 \u015fu an i\u00e7in bilinmemektedir.<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">Hayvan deneyleri ve insan \u00e7al\u0131\u015fmalar\u0131nda g\u00f6r\u00fcld\u00fc\u011f\u00fc gibi ADT, yanl\u0131\u015f pozitif bulgulara yol a\u00e7abilecek a\u015f\u0131r\u0131 PSMA ekspresyonu ile sonu\u00e7lanabilmektedir. Ancak ADT di\u011fer yandan da ger\u00e7ek pozitif bulgular\u0131n say\u0131s\u0131n\u0131 art\u0131rabilmektedir. ADT ve AR-hedefli tedavilerin Ga-68 PSMA tutulumu \u00fczerindeki etkisi, tedavinin ba\u015flamas\u0131ndan hemen sonra \u00e7ok daha belirgindir. Bu nedenle, Ga-68 PSMA PET\/BT ile ADT yan\u0131t\u0131n\u0131n de\u011ferlendirilmesi, tedavinin ba\u015flamas\u0131ndan sonra en erken 4-8 hafta sonra yap\u0131lmal\u0131d\u0131r.<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">PSMA tedavisi yan\u0131t\u0131n\u0131 de\u011ferlendirmek i\u00e7in Ga-68 PSMA PET\/BT kullan\u0131m\u0131 hakk\u0131nda s\u0131n\u0131rl\u0131 data mevcuttur (\u00f6rn.Lu-177 PSMA-617 ile). Bununla birlikte \u00f6n veriler PSMA PET\/BT Progresyon (PPP) kriterlerinin bu durumda da uygulanabilece\u011fini g\u00f6stermektedir.<\/span><\/p>\n<h3 class=\"p16\"><span class=\"s1\"><b>SGK Perspektifi<\/b><\/span><\/h3>\n<p class=\"p5\"><span class=\"s1\">Sosyal G\u00fcvenlik Kurumu (SGK) Sa\u011fl\u0131k Uygulama Tebli\u011fi (SUT) EK-2\/D-1\u2019de, Ga-68 PSMA PET\/BT\u2019in prostat kanserli hastalarda kullan\u0131m endikasyonu \u015fu \u015fekildedir:\u00a0<\/span><\/p>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td20\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\"><b>Evreleme<\/b><\/span><\/p>\n<\/td>\n<td class=\"td21\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Gleason skor 7 veya \u00fcst\u00fc olan ve di\u011fer g\u00f6r\u00fcnt\u00fcleme y\u00f6ntemlerinde (Kemik Sintigrafisi, BT, MR vb.) \u015f\u00fcpheli lezyon bulunmas\u0131 durumunda, sadece 3. basamak resmi sa\u011fl\u0131k hizmet sunucular\u0131nda* yap\u0131lmas\u0131 halinde \u00f6denir.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"p18\"><span class=\"s1\">*\u00dc\u00e7\u00fcnc\u00fc basamak resmi sa\u011fl\u0131k kurumu; Sa\u011fl\u0131k Bakanl\u0131\u011f\u0131na ba\u011fl\u0131 e\u011fitim ve ara\u015ft\u0131rma hastaneleri ve \u00f6zel dal e\u011fitim ve ara\u015ft\u0131rma hastaneleri ile bu hastanelere ba\u011fl\u0131 semt poliklinikleri, \u00fcniversite hastaneleri ile bu hastanelere ba\u011fl\u0131 sa\u011fl\u0131k uygulama ve ara\u015ft\u0131rma merkezleri, enstit\u00fcler ve semt poliklinikleri.<\/span><\/p>\n<h3 class=\"p4\"><span class=\"s1\"><b>Galyum-68 PSMA PET\/BT G\u00fcvenli midir?<\/b><\/span><\/h3>\n<p class=\"p2\"><span class=\"s1\">Ga-68 PSMA bir kontrast madde de\u011fildir ve uygulama s\u0131ras\u0131nda herhangi bir yan etki (alerjik reaksiyonlar, deri d\u00f6k\u00fcnt\u00fcs\u00fc, k\u0131zar\u0131kl\u0131k, bulant\u0131, kusma vb.) beklenmemektedir. Bununla birlikte beraberinde damardan kontrast madde uyguland\u0131\u011f\u0131 \u00f6zel durumlarda, kontrast alerjisi ve di\u011fer yan etkiler a\u00e7\u0131s\u0131ndan dikkatli olunmal\u0131d\u0131r.<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">Ga-68, sadece 68 dakika gibi \u00e7ok k\u0131sa bir yar\u0131 \u00f6mre sahiptir ve ila\u00e7 uyguland\u0131ktan en ge\u00e7 6 saat sonra, v\u00fccuttaki radyasyon do\u011fal seviyeye geri d\u00f6nmektedir. Bu nedenle, ila\u00e7 verilmesini takiben ilk 6 saat k\u00fc\u00e7\u00fck \u00e7ocuklarla ve hamile kad\u0131nlarla temastan ka\u00e7\u0131n\u0131lmas\u0131 gerekir.<\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">Ga-68 PSMA PET\/BT i\u015flemi sonucu al\u0131nacak radyasyon dozu yakla\u015f\u0131k 5mSv\u2019tir ve bu doz, bilgisayarl\u0131 tomografi gibi geleneksel bir tetkik sonucu al\u0131nacak doz ile ayn\u0131 d\u00fczeydedir.<\/span><\/p>\n<h3 class=\"p19\"><span class=\"s1\"><b>Galyum-68 PSMA PET\/BT \u00d6ncesi Haz\u0131rl\u0131k<\/b><\/span><\/h3>\n<p class=\"p16\"><span class=\"s1\"><b>Ga-68 PSMA PET\/BT Tetkik \u0130stemi<\/b><\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">Ga-68 PSMA PET\/BT tetkik istemi; hastan\u0131n tan\u0131, risk grubu ve onkolojik ge\u00e7mi\u015fini kapsayan k\u0131sa bir \u00f6zeti de i\u00e7ermelidir.\u00a0<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">Hasta dosyas\u0131 incelenmesinde dikkate al\u0131nacak hususlar \u015f\u00f6yledir:<\/span><\/p>\n<ul class=\"ul1\">\n<li class=\"li2\"><span class=\"s1\">G\u00f6r\u00fcnt\u00fcleme endikasyonu<\/span><\/li>\n<li class=\"li2\"><span class=\"s1\">Prostat kanserine \u00f6zg\u00fc \u00f6yk\u00fc:<\/span><\/li>\n<\/ul>\n<p class=\"p20\"><span class=\"s1\">a. Primer kanser<\/span><\/p>\n<p class=\"p21\"><span class=\"s1\">-PSA ve Gleason skoru<\/span><\/p>\n<p class=\"p20\"><span class=\"s1\">b. Biyokimyasal n\u00fcks<\/span><\/p>\n<p class=\"p21\"><span class=\"s1\">-PSA ve PSA kineti\u011fi<\/span><\/p>\n<p class=\"p21\"><span class=\"s1\">-\u00d6nceki tedaviler (\u00f6rn. prostatektomi, radyoterapi)<\/span><\/p>\n<p class=\"p22\"><span class=\"s1\">c. G\u00fcncel prostat kanseri ila\u00e7 tedavileri: Androjen deprivasyon tedavisi (ADT, antiandrojen tedavi, kastrasyon tedavisi) veya di\u011fer androjen resept\u00f6r\u00fc hedefli tedaviler. Yak\u0131n ge\u00e7mi\u015fte kemoterapi, Radyum-223 veya PSMA hedefli radyoligand tedavisi \u00f6yk\u00fcs\u00fc.<\/span><\/p>\n<p class=\"p22\"><span class=\"s1\">d. Hastal\u0131kla ili\u015fkili semptomlar (kemik a\u011fr\u0131s\u0131, s\u0131k idrara \u00e7\u0131kma, nokt\u00fcri, hemat\u00fcri, diz\u00fcri, iktidars\u0131zl\u0131k, erektil disfonksiyon veya a\u011fr\u0131l\u0131 bo\u015falma)<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0 \u00a0\u00a0<\/span>e. \u00d6nceki g\u00f6r\u00fcnt\u00fcleme bulgular\u0131<\/span><\/p>\n<ul class=\"ul1\">\n<li class=\"li2\"><span class=\"s1\">Hastal\u0131k ile ili\u015fkili komorbiditeler<\/span><\/li>\n<\/ul>\n<p class=\"p2\"><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/span>a. Prostat d\u0131\u015f\u0131 maligniteler<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0\u00a0<\/span>b. Alerjiler<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/span>c. B\u00f6brek yetmezli\u011fi<\/span><\/p>\n<p class=\"p23\"><span class=\"s1\"><b>Hasta Haz\u0131rl\u0131\u011f\u0131<\/b><\/span><\/p>\n<p class=\"p3\"><span class=\"s1\">Hastalar\u0131n i\u015flem i\u00e7in a\u00e7 olmas\u0131 gerekmez ve t\u00fcm ila\u00e7lar\u0131n\u0131 kullanabilirler. Preklinik veriler, kastrasyona diren\u00e7li prostat kanserinde ve ADT alt\u0131nda PSMA ekspresyonunun artt\u0131\u011f\u0131n\u0131 g\u00f6stermektedir. Bununla birlikte, ADT\u2019nin Ga-68 PSMA PET\/BT performans\u0131 \u00fczerindeki klinik etkisini de\u011ferlendirebilmek i\u00e7in daha fazla veriye ihtiya\u00e7 vard\u0131r. Hastalar g\u00f6r\u00fcnt\u00fclemeden \u00f6nce iyi hidrasyon yap\u0131lmal\u0131d\u0131r, bunun i\u00e7in g\u00f6r\u00fcnt\u00fclemeden 2 saat \u00f6nce 500 mL su oral al\u0131m\u0131 yeterli olacakt\u0131r. G\u00f6r\u00fcnt\u00fclemeden hemen \u00f6nce i\u015femeyle mesanenin bo\u015falt\u0131lmas\u0131 gerekmektedir. Buna ra\u011fmen, baz\u0131 durumlarda, \u00fcriner sistemde y\u00fcksek aktivite kalmakta ve PET\/BT\u2019de \u201chalo artefakt\u0131na\u201d yol a\u00e7abilmektedir. \u00dcreterlerdeki aktivite yanl\u0131\u015f pozitif bulgulara yol a\u00e7abilir. Bu durumda Furosemid uygulamas\u0131 (20 mg, i.v, Ga-68 PSMA\u2019n\u0131n i.v. uygulanmas\u0131ndan hemen \u00f6nce ya da sonra) \u00f6zellikle yararl\u0131 olabilir.<\/span><\/p>\n<h3 class=\"p1\"><span class=\"s1\"><b>Galyum-68 PSMA PET\/BT Nas\u0131l Uygulan\u0131r?<\/b><\/span><\/h3>\n<p class=\"p5\"><span class=\"s1\">PET\/BT g\u00f6r\u00fcnt\u00fclemesi, Ga-68 PSMA\u2019n\u0131n 1.8-2.2 Mbq\/Kg (0.049 \u2013 0.060 mCi\/Kg) dozunda i.v. bolus enjeksiyonu sonras\u0131 yakla\u015f\u0131k 60. dakikada yap\u0131l\u0131r. Birinci saat g\u00f6r\u00fcnt\u00fclemede arada kal\u0131nan olgularda, 3. saate kadar ge\u00e7 g\u00f6r\u00fcnt\u00fc al\u0131nmas\u0131 \u00fcretere veya mesaneye yak\u0131n lezyonlar\u0131n tan\u0131mlanmas\u0131nda veya d\u00fc\u015f\u00fck PSMA ekspresyonu g\u00f6steren lezyonlarda yard\u0131mc\u0131 olabilir.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\"><b>Ga-68 PSMA PET\/BT- g\u00f6r\u00fcnt\u00fc elde etme ve rekonstr\u00fcksiyon i\u00e7in protokol \u00f6rne\u011fi<\/b><\/span><span class=\"s7\">:<\/span><\/p>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Hasta haz\u0131rl\u0131\u011f\u0131<span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">G\u00f6r\u00fcnt\u00fclemeden 2 saat \u00f6nce 500 mL su oral al\u0131m\u0131<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td25\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Aktivite\/Uygulama<\/span><\/p>\n<\/td>\n<td class=\"td25\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">1.8-2.2 Mbq\/Kg, i.v., ard\u0131ndan serum fizyolojik ile y\u0131ka<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">E\u015fzamanl\u0131 ila\u00e7<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Furosemid (20 mg, i.v.)<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Uptake (tutulum) zaman\u0131<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">60 dakika (kabul edilebilir aral\u0131k: 50 ila 100 dakika)<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Hasta pozisyonu<\/span><\/p>\n<\/td>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">Kollar ba\u015f \u00fcst\u00fcnde, s\u0131rt \u00fcst\u00fc uzanarak<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td27\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">BT Protokol\u00fc<\/span><\/p>\n<\/td>\n<td class=\"td27\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">FOV: kafa taban\u0131ndan uyluk ortas\u0131na kadar;<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">Faz: portal ven\u00f6z (kontrast maddeden 80 saniye sonra, 1.5 mL\/Kg<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td27\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">PET\/BT Protokol\u00fc<\/span><\/p>\n<\/td>\n<td class=\"td27\" valign=\"top\">\n<p class=\"p5\"><span class=\"s1\">FOV: uyluk ortas\u0131ndan kafa taban\u0131na kadar, yatak pozisyonu ba\u015f\u0131na 3-4 dk.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 class=\"p24\"><span class=\"s1\"><b><br \/>Raporlama<\/b><\/span><\/h3>\n<p class=\"p14\"><span class=\"s1\"><b>PSMA Tutulum Yeri, Yayg\u0131nl\u0131\u011f\u0131 ve Yo\u011funlu\u011funun Tan\u0131mlanmas\u0131<\/b><\/span><\/p>\n<p class=\"p6\"><span class=\"s1\">Genel g\u00f6zden ge\u00e7irmede, prostat bezi\/yata\u011f\u0131, seminal vezik\u00fcller, b\u00f6lgesel ve uzak lenf d\u00fc\u011f\u00fcmleri, kemikler, akci\u011ferler ve karaci\u011fere \u00f6ncelikle dikkat edilmelidir. \u0130stem formunda yer alan semptomlarla ili\u015fkili olabilecek b\u00f6lgelere de \u00f6zel dikkat g\u00f6sterilmelidir. Yar\u0131 kantitatif de\u011ferlere (maksimum SUV) ek olarak, lezyonlar\u0131n Ga-68 PSMA tutulum d\u00fczeyleri; arka plan tutulumla k\u0131yaslanarak, d\u00fc\u015f\u00fck, orta veya yo\u011fun olarak bildirilir. T\u00fcm\u00f6ral lezyonlar genellikle kom\u015fu arka plandan daha y\u00fcksek Ga-68 PSMA tutulumu g\u00f6sterirler. Ga-68 PSMA tutulumunun saptanabildi\u011fi her b\u00f6lge i\u00e7in, BT\u2019de kar\u015f\u0131l\u0131k geldi\u011fi lezyon da rapor edilmelidir.<\/span><\/p>\n<p class=\"p16\"><span class=\"s1\"><b>Normal Tutulum Ve \u00d6nemli Tuzaklar<\/b><\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">A\u015fa\u011f\u0131daki dokularda normal ve de\u011fi\u015fken d\u00fczeylerde PSMA tutulumu g\u00f6r\u00fclebilmektedir:<\/span><\/p>\n<ul>\n<li class=\"p5\"><span class=\"s1\">Fizyolojik<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">G\u00f6zya\u015f\u0131 bezleri<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">T\u00fck\u00fcr\u00fck bezleri<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Karaci\u011fer<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Dalak; splenosis ve aksesuar dalak dahil<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">\u0130nce ba\u011f\u0131rsak ve kolon<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">B\u00f6brekler<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Otonom sinir sistemi ganglionlar\u0131, en s\u0131k lomber olmak \u00fczere servikal, stellat, \u00e7\u00f6lyak ve sakral ganglionlar<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Radyoligand\u0131n \u00fcriner sistemden ekskresyonu, \u00fcreter, mesane<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Benign patolojiler<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Gran\u00fclomat\u00f6z hastal\u0131klar; sarkoidoz, Wegener gran\u00fclomatozu, t\u00fcberk\u00fcloz, antrakoslikozis<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Benign kemik hastal\u0131klar\u0131; fibr\u00f6z displazi, iyile\u015fen k\u0131r\u0131k, Paget hastal\u0131\u011f\u0131<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Benign n\u00f6rojenik t\u00fcm\u00f6rler; schwannoma ve di\u011fer periferik sinir k\u0131l\u0131f\u0131 t\u00fcm\u00f6rleri, meningioma<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Benign yumu\u015fak doku patolojileri; jinekomasti, hemanjioma, desmoid t\u00fcm\u00f6r, intramusk\u00fcler miksoma, ps\u00f6doanjiomat\u00f6z stromal hiperplazi<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Malign t\u00fcm\u00f6rler<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Multiple myelom<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Tiroid kanseri; med\u00fcller, papiller, folik\u00fcler<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Meme kanseri<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Akci\u011fer kanseri<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Pankreatik NET<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Renal h\u00fccreli karsinoma, metastatik<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Hepatosell\u00fcler karsinom<\/span><\/li>\n<li class=\"p5\"><span class=\"s1\">Glioblastoma multiforme<\/span><\/li>\n<\/ul>\n<p class=\"p5\"><span class=\"s1\">Ga-68 PSMA ligandlar\u0131 \u00f6ncelikle \u00fcriner sistem yoluyla at\u0131l\u0131r ve mesanede toplan\u0131r,<span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>hepatobiliyer sistem yoluyla ise k\u00fc\u00e7\u00fck bir oran temizlenir. Bu nedenle, idrar kesesi kom\u015fulu\u011fundaki, yumu\u015fak doku yap\u0131lar\u0131nda Ga-68 PSMA ligand al\u0131m\u0131n\u0131 de\u011ferlendirmek i\u00e7in SUV e\u015fi\u011finin do\u011fru ayarlanmas\u0131, k\u00fc\u00e7\u00fck lokal n\u00fcksleri atlamamak i\u00e7in \u00f6nemlidir. Normal salin inf\u00fczyonu ve\/veya furosemid uygulamas\u0131ndan sonra pelvise y\u00f6nelik ge\u00e7 g\u00f6r\u00fcnt\u00fcleme yap\u0131lmas\u0131 bu gibi durumlarda faydal\u0131 olabilir. Karaci\u011ferdeki y\u00fcksek arka plan aktivitesi nedeniyle, potansiyel karaci\u011fer metastazlar\u0131 saptanamayabilir. Bu durum, ileri metastatik hastal\u0131kta, karaci\u011fer metastazlar\u0131n\u0131n PSMA ekspresyonunu kaybetme e\u011filiminde olmas\u0131yla daha da belirginle\u015fir. Bu nedenle, ileri d\u00f6nem hastal\u0131kta, PET\/BT\u2019nin BT komponenti, karaci\u011fer metastazlar\u0131n\u0131 saptayabilmek i\u00e7in optimize edilmelidir.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">\u0130mm\u00fcnohistokimyasal ve Ga-68 PSMA PET\/BT verileri, artm\u0131\u015f PSMA ekspresyonunun neovask\u00fclarizasyona ba\u011fl\u0131 olarak, kolon kanseri, \u00f6zefagus kanseri, tiroid kanseri, akci\u011fer kanseri, b\u00f6brek h\u00fccreli karsinom ve beyin t\u00fcm\u00f6rleri gibi prostat d\u0131\u015f\u0131 kanser t\u00fcrlerinde de rastlanabildi\u011fini g\u00f6stermi\u015ftir.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">\u00d6nemli bir di\u011fer tuzak ise retroperitoneal lenf nodu metastaz\u0131 \u015feklinde yanl\u0131\u015f yorumlanmaya neden olabilen otonom sinir sisteminin \u00e7\u00f6lyak gangliyonlar\u0131nda Ga-68 PSMA ligand tutulumudur.<\/span><\/p>\n<p class=\"p5\"><span class=\"s1\">Ga-68 PSMA PET\/BT, prostat kanseri hastalar\u0131nda tedaviye yan\u0131t\u0131n de\u011ferlendirilmesi i\u00e7in hen\u00fcz konfirme edilmemi\u015ftir. Bununla birlikte prensip olarak, tedaviye yan\u0131t\u0131n de\u011ferlendirilmesi i\u00e7in kullan\u0131laca\u011f\u0131 durumlarda, PSMA tutulumunun yayg\u0131nl\u0131\u011f\u0131 ve yo\u011funlu\u011fu raporlanarak \u00f6nceki g\u00f6r\u00fcnt\u00fclemeleri ile kar\u015f\u0131la\u015ft\u0131r\u0131lmal\u0131d\u0131r.<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\"><b>miPSMA ekspresyon skorlamas\u0131 (\u00a0<\/b><\/span><span class=\"s7\"><b>Ga-68 PSMA<\/b><\/span><span class=\"s1\"><b>\u00a0i\u00e7in)<\/b><\/span><\/p>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td28\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\"><b>Skor<\/b><\/span><\/p>\n<\/td>\n<td class=\"td29\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\"><b>Raporlama<\/b><\/span><\/p>\n<\/td>\n<td class=\"td28\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\"><b>Tutulum D\u00fczeyi<\/b><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td30\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">0<\/span><\/p>\n<\/td>\n<td class=\"td31\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">yok<\/span><\/p>\n<\/td>\n<td class=\"td30\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">&lt; kan havuzu<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td28\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">1<\/span><\/p>\n<\/td>\n<td class=\"td29\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">hafif<\/span><\/p>\n<\/td>\n<td class=\"td28\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">\u2265 kan havuzu ve &lt; karaci\u011fer*<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td28\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">2<\/span><\/p>\n<\/td>\n<td class=\"td29\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">orta<\/span><\/p>\n<\/td>\n<td class=\"td28\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">\u2265karaci\u011fer ve &lt; parotis gland\u0131<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td30\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">3<\/span><\/p>\n<\/td>\n<td class=\"td31\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">y\u00fcksek<span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<\/td>\n<td class=\"td30\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">\u2265 parotis gland\u0131<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"p25\"><span class=\"s1\">*18F-PSMA gibi karaci\u011ferden ekskresyona u\u011frayan PSMA ligandlar\u0131 kullan\u0131ld\u0131\u011f\u0131nda, referans organ olarak karaci\u011fer yerine dalak \u00f6nerilmektedir.\u00a0<\/span><\/p>\n<p class=\"p11\"><span class=\"s1\"><b>Ga-68 PSMA PET\/BT i\u00e7in miTNM s\u0131n\u0131fland\u0131rmas\u0131<\/b><\/span><\/p>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\"><b>S\u0131n\u0131f<span class=\"Apple-converted-space\">\u00a0<\/span><\/b><\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\"><b>A\u00e7\u0131klama<\/b><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Lokal t\u00fcm\u00f6r (T)<\/span><\/p>\n<\/td>\n<td class=\"td26\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miT0<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Lokal t\u00fcm\u00f6r yok<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td3\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miT2<\/span><\/p>\n<\/td>\n<td class=\"td3\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Organa s\u0131n\u0131rl\u0131 t\u00fcm\u00f6r, intraprostatik t\u00fcm\u00f6r yerle\u015fimi sekstant baz\u0131nda raporlan\u0131r.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">u<\/span><\/p>\n<\/td>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Tek odakl\u0131<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">m<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">\u00c7ok odakl\u0131<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td3\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miT3<\/span><\/p>\n<\/td>\n<td class=\"td3\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Organa s\u0131n\u0131rl\u0131 olmayan t\u00fcm\u00f6r, intraprostatik t\u00fcm\u00f6r yerle\u015fimi sekstant baz\u0131nda raporlan\u0131r.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">a<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Kaps\u00fcl d\u0131\u015f\u0131na uzan\u0131m<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">b<\/span><\/p>\n<\/td>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">T\u00fcm\u00f6r seminal vezik\u00fcllere invaze<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td32\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miT4<\/span><\/p>\n<\/td>\n<td class=\"td32\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">T\u00fcm\u00f6r seminal vezik\u00fcller d\u0131\u015f\u0131nda eksternal sfinkter, rektum, mesane, levator kas\u0131 veya pelvik duvar gibi kom\u015fu yap\u0131lara invaze<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miTr<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Radikal prostatektomi sonras\u0131 lokal n\u00fcks varl\u0131\u011f\u0131<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">B\u00f6lgesel lenf nodlar\u0131 (N)<\/span><\/p>\n<\/td>\n<td class=\"td26\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miN0<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Pozitif lenf nodu yok<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td3\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miN1a<\/span><\/p>\n<\/td>\n<td class=\"td3\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Lenf nodu metastaz\u0131 tek lenf nodu b\u00f6lgesinde, standard istasyon baz\u0131nda raporlan\u0131r.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td25\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miN1b<\/span><\/p>\n<\/td>\n<td class=\"td25\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Lenf nodu metastaz\u0131 \u2265 2 lenf nodu b\u00f6lgesinde, standard istasyon baz\u0131nda raporlan\u0131r.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Uzak metastaz (M)<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miM0<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Uzak metastaz yok<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miM1<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Uzak metastaz<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td25\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">a<\/span><\/p>\n<\/td>\n<td class=\"td25\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Ekstrapelvik lenf nodu metastaz\u0131, standard istasyon baz\u0131nda raporlan\u0131r.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td32\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">b<\/span><\/p>\n<\/td>\n<td class=\"td32\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Kemik metastaz\u0131, tutulum paterni ve tek odakl\u0131 yada oligometastatik durumda tutulan kemikler raporlan\u0131r.<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">c<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Di\u011fer b\u00f6lgelerde; ayr\u0131ca tutulmu\u015f organ raporlan\u0131r.<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"p11\"><span class=\"s1\"><b><br \/>Ga-68 PSMA PET\/BT i\u00e7in prostat bezinin sekstant segmentasyonu<\/b><\/span><\/p>\n<table class=\"t1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\"><b>Segment<\/b><\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\"><b>miT2-4 i\u00e7in \u015fablon<\/b><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">LB<\/span><\/p>\n<\/td>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Sol bazal<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">RB<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Sa\u011f bazal<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">LM<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Sol orta<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">RM<\/span><\/p>\n<\/td>\n<td class=\"td26\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Sa\u011f orta<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">LA<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Sol apeks<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">RA<\/span><\/p>\n<\/td>\n<td class=\"td24\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Sa\u011f apeks<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"p11\"><span class=\"s1\"><b>Lenf nodu istasyonlar\u0131<\/b><\/span><\/p>\n<table class=\"t1\" style=\"width: 171.111px;\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td24\" style=\"width: 52px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">istasyon<\/span><\/p>\n<\/td>\n<td class=\"td24\" style=\"width: 113.111px;\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" style=\"width: 52px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miN1a\/b<\/span><\/p>\n<\/td>\n<td class=\"td26\" style=\"width: 113.111px;\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td24\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">\u0130nternal iliak<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td24\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Eksternal iliak<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td26\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Ana iliak<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td24\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Obturator<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td24\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Presakral<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td24\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Di\u011fer, pelvik (tan\u0131mla)<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" style=\"width: 52px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">miM1a<\/span><\/p>\n<\/td>\n<td class=\"td26\" style=\"width: 113.111px;\" valign=\"top\">\u00a0<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td24\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Retroperitoneal<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td24\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td24\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Supradiyafragmatik<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td26\" style=\"width: 52px;\" valign=\"top\">\u00a0<\/td>\n<td class=\"td26\" style=\"width: 113.111px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Di\u011fer, ekstrapelvik<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"p11\"><span class=\"s1\"><b><br \/>Kemik tutulum paterleri<\/b><\/span><\/p>\n<table class=\"t1\" style=\"width: 169.889px;\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"td33\" style=\"width: 166.889px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Tek odakl\u0131<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td34\" style=\"width: 166.889px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Oligometastatik (n \u2264 3)<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td33\" style=\"width: 166.889px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Dissemine<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"td33\" style=\"width: 166.889px;\" valign=\"top\">\n<p class=\"p11\"><span class=\"s1\">Diff\u00fcz kemik ili\u011fi tutulumu<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/www.intheranostics.com\/prof\/iletisim\/\"><strong>Daha fazla bilgi i\u00e7in l\u00fctfen bizimle irtibata ge\u00e7iniz.<\/strong><\/a><\/p>\n<p>[\/et_pb_text][et_pb_accordion disabled_on=&#8221;on|on|on&#8221; _builder_version=&#8221;4.4.8&#8243; disabled=&#8221;on&#8221;][et_pb_accordion_item title=&#8221;TANI H\u0130ZMETLER\u0130 &#8211; F18 NaF PET\/BT \u0130\u015flemi&#8221; open=&#8221;on&#8221; open_toggle_text_color=&#8221;#0ca7c5&#8243; _builder_version=&#8221;4.4.8&#8243; toggle_font=&#8221;|700|||||||&#8221; toggle_font_size=&#8221;18px&#8221;]Prostat kanseri kemik metastazlar\u0131 Flor-18-NaF (18F-NaF) PET\/BT ile y\u00fcksek hassasiyette g\u00f6r\u00fcnt\u00fclenebilmektedir.\u00a0Hastal\u0131\u011f\u0131n\u0131z\u0131 takip eden hekiminiz, kemik metastazlar\u0131n\u0131n tan\u0131s\u0131 amac\u0131yla size bu tetkiki \u00f6nerebilir. 18F-NaF PET\/BT; kemik metastazlar\u0131n\u0131n yeri ve yayg\u0131nl\u0131\u011f\u0131n\u0131 do\u011fru bir \u015fekilde g\u00f6sterirken a\u011fr\u0131l\u0131 kemik metastazlar\u0131nda hedefe y\u00f6nelik ba\u015far\u0131l\u0131 bir tedavi se\u00e7ene\u011fi olan Radyum-223 alfa tedavisinin kullan\u0131m\u0131n\u0131 da m\u00fcmk\u00fcn k\u0131lar.<\/p>\n<p><a class=\"btn_blue\" href=\"\/kemige-metastatik-prostat-kanseri\/\">F18 NaF PET\/BT ve Kemi\u011fe Metastatik Prostat Kanseri Hakk\u0131nda Detayl\u0131 Bilgi \u0130\u00e7in&#8230;<\/a>[\/et_pb_accordion_item][et_pb_accordion_item title=&#8221;TEDAV\u0130 H\u0130ZMETLER\u0130 &#8211; Radyum-223 Alfa Tedavisi&#8221; open_toggle_text_color=&#8221;#0ca7c5&#8243; _builder_version=&#8221;4.4.8&#8243; toggle_font=&#8221;|700|||||||&#8221; toggle_font_size=&#8221;18px&#8221; open=&#8221;off&#8221;]Radyum-223 alfa tedavisi, kemiklere yay\u0131lm\u0131\u015f veya metastaz yapm\u0131\u015f prostat kanseri olan hastalar\u0131m\u0131zda, takip eden hekimlerin \u00f6nerisi ile kullan\u0131lan bir tedavi t\u00fcr\u00fcd\u00fcr. Amac\u0131, kemikteki kanser h\u00fccrelerine zarar vermek, t\u00fcm\u00f6rlerin k\u00fc\u00e7\u00fclmesine ve hatta tamamen yok olmas\u0131na neden olmakt\u0131r. Ayr\u0131ca kemiklerdeki kanserle ili\u015fkili a\u011fr\u0131y\u0131 azaltmak i\u00e7in de kullan\u0131l\u0131r.<\/p>\n<p><a class=\"btn_blue\" href=\"\/kemige-metastatik-prostat-kanseri\/\">Radyum-223 Alfa ve Kemi\u011fe Metastatik Prostat Kanseri Hakk\u0131nda Detayl\u0131 Bilgi \u0130\u00e7in&#8230;<\/a>[\/et_pb_accordion_item][\/et_pb_accordion][et_pb_code _builder_version=&#8221;4.4.8&#8243;][\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;4.4.8&#8243; background_color=&#8221;rgba(0,0,0,0)&#8221; background_image=&#8221;https:\/\/www.intheranostics.com\/wp-content\/uploads\/2020\/06\/metastatik_prostat_kanseri.jpg&#8221; custom_padding=&#8221;100px||100px||false|false&#8221; locked=&#8221;off&#8221;][et_pb_fullwidth_header title=&#8221;Ga-68 PSMA PET\/BT&#8221; text_orientation=&#8221;center&#8221; content_max_width_last_edited=&#8221;off|desktop&#8221; 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use_background_color_gradient=&#8221;on&#8221; background_color_gradient_start=&#8221;#8dd2e1&#8243; background_color_gradient_end=&#8221;#23afca&#8221; background_color_gradient_direction=&#8221;90deg&#8221; width=&#8221;50%&#8221; module_alignment=&#8221;center&#8221; height=&#8221;10px&#8221;][\/et_pb_divider][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221; _builder_version=&#8221;3.22&#8243;][et_pb_row admin_label=&#8221;row&#8221; _builder_version=&#8221;4.4.8&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; custom_margin=&#8221;||||false|false&#8221; custom_padding=&#8221;0px|0px|0px|0px|false|false&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.25&#8243; [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-1577","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ga-68 PSMA PET\/BT - Tan\u0131 ve Tedavi Hizmeti - Prof intheranostics<\/title>\n<meta name=\"description\" content=\"Metastatik prostat kanseri tan\u0131 ve tedavisinde, Galyum-68 PSMA PET\/BT ile g\u00f6r\u00fcnt\u00fcleme ve Lutesyum-177 PSMA tedavisi uygulanmaktad\u0131r.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.intheranostics.com\/prof\/ga-68-psma-pet-bt\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ga-68 PSMA PET\/BT - Tan\u0131 ve Tedavi Hizmeti - Prof intheranostics\" \/>\n<meta property=\"og:description\" content=\"Metastatik prostat kanseri tan\u0131 ve tedavisinde, Galyum-68 PSMA PET\/BT ile g\u00f6r\u00fcnt\u00fcleme ve Lutesyum-177 PSMA tedavisi uygulanmaktad\u0131r.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.intheranostics.com\/prof\/ga-68-psma-pet-bt\/\" \/>\n<meta property=\"og:site_name\" content=\"Prof intheranostics\" \/>\n<meta property=\"article:modified_time\" content=\"2021-02-25T07:12:54+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data1\" content=\"23 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.intheranostics.com\/prof\/ga-68-psma-pet-bt\/\",\"url\":\"https:\/\/www.intheranostics.com\/prof\/ga-68-psma-pet-bt\/\",\"name\":\"Ga-68 PSMA PET\/BT - Tan\u0131 ve Tedavi Hizmeti - Prof intheranostics\",\"isPartOf\":{\"@id\":\"https:\/\/www.intheranostics.com\/prof\/#website\"},\"datePublished\":\"2020-09-11T07:39:03+00:00\",\"dateModified\":\"2021-02-25T07:12:54+00:00\",\"description\":\"Metastatik prostat kanseri tan\u0131 ve tedavisinde, Galyum-68 PSMA PET\/BT ile g\u00f6r\u00fcnt\u00fcleme ve Lutesyum-177 PSMA tedavisi uygulanmaktad\u0131r.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.intheranostics.com\/prof\/ga-68-psma-pet-bt\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.intheranostics.com\/prof\/ga-68-psma-pet-bt\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.intheranostics.com\/prof\/ga-68-psma-pet-bt\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Ana sayfa\",\"item\":\"https:\/\/www.intheranostics.com\/prof\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ga-68 PSMA PET\/BT\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.intheranostics.com\/prof\/#website\",\"url\":\"https:\/\/www.intheranostics.com\/prof\/\",\"name\":\"Prof intheranostics\",\"description\":\"Internal Radionuclide Diagnosis &amp; 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