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Updated: Jun 28, 2025

An Automated Radiosynthesis of [68Ga]Ga-FAPI-46 for Routine Clinical Use

An Automated Radiosynthesis of [⁶⁸Ga]Ga-FAPI-46 for Routine Clinical Use

Published on: May 24, 2024

补充静态和动态Ga-FAPI-46 PET的诊断潜力用于初级F-FDG阴性肺病变

Manuel Röhrich^1,2,3, Johanna Daum^4,3, Ewgenija Gutjahr⁵

¹Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany; manuel.roehrich@med.uni-heidelberg.de.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

|April 11, 2024

概括

加-68标记为纤维细胞激活蛋白抑制剂 (Ga-FAPI-46) PET显示出对成像F-FDG阴性肺癌的承诺. 这种新型的PET追踪器有效地区分恶性和良性肺病变,提高了诊断准确度.

科学领域:

核医学是一种核医学.
在瘤学瘤学.
放射化学放射化学是指辐射化学.

背景情况:

F-FDG PET是肺癌 (LC) 成像的标准,但难以检测某些亚型,如白性LC.
标有Ga标记的纤维细胞激活蛋白抑制剂 (FAPI) 对包括LC在内的恶性瘤的成像具有潜力.
在LC评估中,F-FDG阴性肺病变构成了诊断挑战.

研究的目的:

评估静态和动态Ga-FAPI-46 PET在识别F-FDG阴性肺病变中的诊断性能.
为了比较Ga-FAPI-46 PET与F-FDG PET在区分肺癌与良性病变中的有效性.

主要方法:

组织病理学分析,包括FAP免疫组织化学,皮LC组织样本.
用静态和动态Ga-FAPI-46 PET和F-FDG PET对19名患者进行临床评估.
分析PET参数 (SUVmax,SUVmean,TBR,相对比率) 和动态成像数据 (时间活动曲线,动态参数).

主要成果:

FAP免疫组织化学证实了FAP在白性LC中的强烈表达.
与良性病变相比,Ga-FAPI-46 PET在LC中显示出显著更高的吸收,TBR和Ga-FAPI-46-至-F-FDG比率.
动态成像揭示了明显的时间活动曲线,LC最初显示增加曲线和良性病变显示下降曲线.

结论:

68Ga-FAPI-46 PET是评估F-FDG阴性肺病变,暗示肺癌的有价值的工具.
相对的Ga-FAPI-46-至F-FDG比率,特别是SUVmax和TBR,为歧视LC提供了高灵敏度和特异性.
68Ga-FAPI-46 PET可能会在模两可的肺结节的诊断工作中增强患者分层.

关键词:

FAPIAPI FAPIAPI 这是一个很好的方法.在这里,PET是PET.纤维细胞激活蛋白质的激活蛋白质肺癌是一种肺癌.肺部病变肺部病变肺部病变肺部病变

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