使用百叶状物量化和视觉评估进行中期F-florbetaben正子发射断层扫描成像的可行性评估
Cheng-Han Wu1, Yueh-Hsun Lu1,2,3, Tse-Hao Lee4
1Department of Radiology, Taipei Medical University-Shuang Ho Hospital, New Taipei.
Quantitative imaging in medicine and surgery
|August 15, 2023
概括
中期18F-florbetaben (FBB) PET扫描可用于检测β-粉样蛋白,其结果与标准后期扫描结果相似. 这种方法可以缩短患者的等待时间,并提高医院调度灵活性.
科学领域:
- 核医学就是核医学.
- 放射化学 放射化学是指辐射化学.
- 神经成像是一种神经成像.
背景情况:
- 18F-florbetaben (FBB) PET扫描是检测β-粉样蛋白的标准.
- 通常使用的是晚期扫描 (90-110分钟).
- 中期扫描的可行性尚未得到充分研究,但为改善患者和医院工作流提供了潜力.
研究的目的:
- 评估中期 (60-80分钟) FBB PET扫描与标准后期扫描的可行性和可比性.
- 开发一种方法来将中间阶段数据转换为相当的标准扫描量化.
- 评估对临床解释和患者管理的影响.
主要方法:
- 从27名受试者那里获得了FBB PET扫描中的中期和晚期FBB PET扫描.
- 计算了标准化吸收值比率 (SUVR),并将其转换为百分点 (CL) 尺度.
- 使用回归分析和科恩的kappa来比较协议并评估协议.
主要成果:
- 中期FBB SUVR与晚期SUVR (R2=0.98) 强烈相关,通过方程SUVRFBB60-80 = 0.88 × SUVRFBB90-110 + 0.07.
- 为CL尺度建立了一个转换方程:CL = 174.68 × SUVR - 166.39.
- 对于二进制解释和BAPL分数,观察到优秀的内部交易商协议 (科恩的kappa=1.0).
结论:
- 中期FBB PET扫描在临床上是可行的,并提供与标准后期扫描相比的半定量结果.
- 这种协议可以缩短患者的等待时间,并提高调度灵活性.
- 这些发现支持使用中期扫描来评估β-粉样蛋白,特别是在频谱的极端.
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