对定量骨SPECT的最小吸收时间的调查
Hironobu Hata1, Kenji Hirata2, Satoshi Shimomura3
1Department of Dentistry and Oral Surgery,, NHO Hokkaido Cancer Center, Sapporo, Japan. hata.hironobu.wq@mail.hosp.go.jp.
BMC oral health
|October 15, 2025
概括
使用[99mTc] Tc-HMDP减少骨SPECT的吸收时间对癌症患者有益. 然而,这项研究发现,定量骨SPECT的最短可接受的获取时间仍然是2小时.
科学领域:
- 核医学是一种核医学.
- 放射性药理学 是一种放射性药理学.
- 医疗成像医学成像
背景情况:
- 骨光学成像时间各不相同,影响患者的护理.
- 之前的研究表明[99mTc] 2小时后的Tc-HMDP吸收可与3小时相比.
- 较短的吸收时间有利于一般健康状况不佳的患者,包括癌症患者.
研究的目的:
- 调查使用[99mTc] Tc-HMDP的定量骨SPECT吸收时间是否可以进一步减少.
- 为了确定准确的骨病变的定量SPECT分析的最低可接受吸收时间.
主要方法:
- 40名患者接受了用[99mTc] Tc-HMDP进行骨SPECT成像.
- 患者被分为1.0小时和1.5小时的吸收时间组,分别在1.0/2.0h和1.5/2.0h进行成像.
- 使用定量SPECT软件,将时间点和组之间的最大标准化摄入值 (SUVmax) 进行了比较.
主要成果:
- 在1.0小时组中,骨SUVmax没有显著差异,但骨损伤SUVmax显著增加2.0h (p < 0.001).
- 在1.5小时组中,额头骨SUVmax没有显著不同,而骨损伤SUVmax显著增加2.0h (p < 0.001).
- 在任何一组的早期和后期时间点之间,在骨吸收方面没有发现显著差异.
结论:
- 使用[99mTc]Tc-HMDP对骨病变的定量SPECT评估不能从2小时减少30分钟的时间.
- 定量骨SPECT的最短可接受的获取时间仍然是2小时.
- 为了准确的定量分析,将吸收时间进一步缩短到2小时以下是不可行的.
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