在患有各种恶性瘤的患者中,Ga-FAPI 与F-FDG PET 的诊断准确度为68和18
Nader Hirmas1, Rainer Hamacher2, Miriam Sraieb3
1Department of Nuclear Medicine, German Cancer Consortium-University Hospital Essen, University of Duisburg-Essen, Essen, Germany; naderhirmas@gmail.com.
与-18 FDG PET相比,-68纤维细胞激活蛋白抑制剂 (FAPI) PET在结直肠和前列腺癌的诊断准确度更高. 这种对比比较突出了FAPI PET.
科学领域:
- 核医学就是核医学.
- 瘤成像学成像学
- 放射性药物 放射性药物 放射性药物
背景情况:
- 定子发射断层扫描 (PET) 对于癌症诊断和分期至关重要.
- -18氧葡萄糖 (FDG) PET被广泛使用,但在某些瘤类型中存在局限性.
- -68纤维细胞激活蛋白抑制剂 (FAPI) PET是一种新兴的成像方式,用于向与瘤相关的纤维细胞.
研究的目的:
- 为了对68Ga-FAPI PET和18F-FDG PET的诊断准确度进行对比.
- 评估两种PET标记剂在检测各种原发性瘤,淋巴结和转移中的有效性.
- 评估不同类型癌症的表现,包括结直肠,前列腺,乳腺,头,膀,脏,淋巴瘤和骨髓瘤.
主要方法:
- 一项前性观察性试验,包括115名患有8种瘤实体的患者.
- 103名患者同时接受了Ga-FAPI PET和F-FDG PET成像,用于瘤分期或重新分期.
- 损伤验证是使用组织病理学和成像学进行的,每位患者和每个区域的准确性被分析.
主要成果:
- 对于结直肠癌 (每患者85.7%对比78.6%) 和前列腺癌 (每患者100%对比90.9%),Ga-FAPI PET的诊断准确性高于F-FDG PET.
- 对于乳腺癌 (两种癌症均为100%) 和头癌 (两种癌症均为90%),观察到相似的每患者准确度.
- 在F-FDG PET中,膀癌 (100%与75%对比),癌 (90%与80%对比),淋巴瘤 (100%与88.9%对比) 和髓瘤 (90%与80%对比) 的准确性更高.
结论:
- 与F-FDG PET相比,Ga-FAPI PET在结直肠和前列腺癌的诊断准确度更高.
- 这两种方法在乳腺癌和头癌中表现相似.
- 关于Ga-FAPI PET的精度和管理影响的进一步评估正在进行中,这是一项前性干预试验 (NCT05160051).
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