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早期10分钟后注射F-FAPI-42 uEXPLORER 全身PET/CT扫描协议用于分期肺癌使用超代重建

Hanyun Yang¹, Lijuan Wang¹, Ganghua Tang¹

¹GDMPA Key Laboratory for Quality Control and Evaluation of Radiopharmaceuticals, Department of Nuclear Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.

Journal of nuclear medicine technology

|May 9, 2025

概括

HYPER 代重建在[18F]F-FAPI-42 PET/CT 扫描上显著改善了小肺癌转移性病变的可视化. 与OSEM相比,这种方法可以在注射后10分钟内更清晰地检测早期癌症.

科学领域:

核医学是一种核医学.
在瘤学瘤学.
医疗成像医学成像

背景情况:

肺癌的精确分期依赖于对小转移性病变的敏感检测.
对这些小病变的可视化对于有效的治疗计划至关重要.
纤维细胞激活蛋白抑制剂 (FAPI) PET/CT显示为肺癌成像的承诺.

研究的目的:

评估 HYPER 代重建在增强小转移性肺癌病变可视化的有效性.
为了比较HYPER代与有序子集期望最大化 (OSEM) 对于[18F]F-FAPI-42 PET/CT成像.
评估重建方法和扫描时间对病变检测的影响.

主要方法:

19名肺癌患者接受了[18F]F-FAPI-42动态全身uEXPLORER PET/CT扫描.
图像是使用HYPER代和OSEM方法重建的.
定量分析包括SUVmax,瘤与器官的比率以及注射后10,30和60分钟的损伤可视化评估.

主要成果:

与OSEM相比,HYPER代重建的清晰度更高,特别是在小病变 (≤1厘米) 中.
在注射后10分钟,HYPER Iterative显然显示了比OSEM多16.4%的小病变.
瘤与器官的比率在HYPER代重建中显著更高.

结论:

代重建增强了小型转移性肺癌病变的可视化.
这种方法可在注射后10分钟内使用[18F]F-FAPI-42 PET/CT进行有效的早期成像.
在检测小病变方面,HYPER Iterative比OSEM提供了更好的诊断性能.

关键词:

超级代性超级代性这是一辆SUVmax,SUVmax.在T/NT比率上,T/NT比率是 [18F]F-FAPIAPI 的意思肺癌是一种肺癌.

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