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针对潜在可切除胰腺癌的F-前列腺特异性膜抗原PET/CT成像 (PANSCAN-2):一项I/II期研究

Jisce R Puik^1,2, Thomas T Poels^1,2, Gerrit K J Hooijer^2,3

¹Department of Surgery, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, the Netherlands.

Cancer imaging : the official publication of the International Cancer Imaging Society

|January 14, 2025

概括

18F-前列腺特异性膜抗原 (PSMA) PET/CT可以检测胰腺管道腺癌 (PDAC),但在转移中显示出有限的吸收. 这是一种成像技术.

科学领域:

在瘤学瘤学.
核医学就是核医学.
放射学放射学是一门学科.

背景情况:

目前的成像在区分恶性和良性胰腺胆道疾病以及检测淋巴结转移方面缺乏准确性.
18F-前列腺特异性膜抗原 (PSMA) PET/CT,用于前列腺癌分期,偶尔会识别PSMA-狂热的胰腺病变.
胰腺管道腺癌 (PDAC) 是一种显著的胰腺胆细胞恶性瘤.

研究的目的:

评估18F-PSMA PET/CT在检测胰腺管道腺癌 (PDAC) 的可行性.
评估18F-PSMA PET/CT用于初级PDAC检测和转移识别的诊断性能.

主要方法:

在手术前,有17名可切除PDAC的患者接受了18F-PSMA PET/CT.
图像进行了视觉和定量分析 (SUVmax,TBR).
PET发现与手术样本中的PSMA表达相关.

主要成果:

在17个扫描中,13个扫描显示了主要瘤中PSMA吸收的阳性.
主要瘤可检测,平均瘤与背景比 (TBR) 为3.3.
在淋巴结或远程转移中没有观察到PSMA吸收,尽管组织学证实了这一点.

结论:

18F-PSMA PET/CT检测到初级PDAC,但总体上吸收率低且不特定.
标记器没有识别淋巴结或远程转移.
在分期PDAC中,PSMA PET/CT的附加值似乎有限.

关键词:

诊断诊断诊断诊断诊断我们的PDAC是PDAC.聚乙烯/聚乙烯/聚乙烯在PSMA上,PSMA可以在PSMA上进行交易.胰腺癌是一种癌症.

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