使用两个基于幻影的软件程序进行定量分析的比较评估,用于18F-FDG-PET/CT
Kosuke Yamashita1, Kazuki Motegi2, Noriaki Miyaji3
1Department of Medical Imaging Technology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan. kyamashita@kumamoto-u.ac.jp.
Radiological physics and technology
|October 9, 2025
概括
一个新的自动化软件,Arimaru,显示与-18-氧二糖正子发射断层扫描/计算机断层扫描 (18F-FDG-PET/CT) 定量分析的传统方法有很强的一致性,符合日本核医学学会的指导方针.
科学领域:
- 核医学是一种核医学.
- 医疗成像医学成像
- 放射性药理学 是一种放射性药理学.
背景情况:
- 在18F-FDG-PET/CT图像质量和定量准确度的变化存在于机构和设备之间.
- 日本核医学学会 (JSNM) 制定了图像质量保证的指导方针.
- 自动化软件解决方案正在出现,以简化质量保证流程.
研究的目的:
- 为了比较一种新的自动化软件Arimaru的性能,与用于定量分析18F-FDG-PET/CT图像的传统软件进行比较.
- 评估Arimaru在计算与图像质量相关的物理参数方面的准确性.
- 评估阿里马鲁公司是否符合JSNM指南.
主要方法:
- 在两个PET/CT系统 (GE Healthcare Discovery MI和IQ) 上使用了NEMA IEC身体幻影与列表模式获取 (1800年代) 和多个时间点的重建 (30-1800年代).
- 使用Arimaru和传统软件 (PETquact IE) 计算了五个物理参数 (Q H,10,N 10,Q H,10/N 10,CV BG和SUVmax).
- 评估兴趣区域 (ROI) 定位准确性和方法之间的相关性.
主要成果:
- 阿里马鲁准确地定位了ROI,并证明了与所有参数的常规方法的强烈相关性 (r > 0.85,p < 0.05).
- 在Arimaru和传统软件之间的一些物理参数值中观察到显著差异.
- 这种自动化方法符合JSNM的指导方针.
结论:
- 自动化的Arimaru软件与传统方法有很强的一致性,并遵守JSNM对18F-FDG-PET/CT定量分析的指南.
- 计算值的系统差异需要了解软件的特定特征.
- 采用Arimaru等自动化工具可以促进标准化的PET成像实践.
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