从不同的SPECT/CT系统获得的骨SUV的比较
Mana Yoshimura1, Natsumi Kugai, Togo Aida
1Department of Radiology, Tokyo Medical University, Tokyo, Japan. y_mana@mac.com.
Hellenic journal of nuclear medicine
|December 12, 2023
概括
从不同的SPECT/CT设备中比较标准化吸收值 (SUV) 是一个挑战. 将SUV表示为正常骨的比率,比如部头部,可以在骨光学中进行一致的定量比较.
科学领域:
- 核医学就是核医学.
- 医疗成像医学成像
- 在瘤学瘤学.
背景情况:
- 使用SPECT/CT进行骨光学分析的定量分析受到不同设备之间的成像采集和分析方法的变化所阻碍.
- 标准化吸收值 (SUV) 的测量值可能会有很大的差异,使直接比较复杂化.
研究的目的:
- 为了比较不同SPECT/CT设备获得的SUV值.
- 评估使用正常骨比率作为设备间SUV比较方法的实用性.
- 分析不同SPECT/CT系统之间的SUV比率的相关性.
主要方法:
- 对27名前列腺癌患者的回顾性分析,这些患者在两种不同的SPECT/CT设备 (Symbia T16和Symbia Intevo) 上接受了骨光学扫描.
- 感兴趣的区域被放置在五个参考点上:部头部,大腿部,阴茎,L1和L5.5.
- 每个地区的最大SUV (SUVmax) 和平均SUV (SUVave) 都被测量.
- 计算SUV比率是通过将每个地区的SUV除以部头部的SUV.
主要成果:
- 部头部在SPECT/CT设备上表现出SUVAVE的最小平均值和差异.
- 所有地区的SUVmax和SUVave中位数比率显示了这两种设备之间的趋势相似.
- 在不同设备的SUV比率之间观察到高相关系数 (0.931.19).
结论:
- 将SUV的定量值表示为部头部SUVave的比率,可以在不同的SPECT/CT设备中可靠地比较骨积累.
- 这种比率方法可以减轻因不同成像采集和分析协议而产生的差异.
- 这些发现支持对定量骨光学扫描的标准化方法,提高了诊断一致性.
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