定量骨 SPECT 对骨病变的标准化摄取值的稳定性:一个单中心横截面研究
Hironobu Hata1,2, Satoshi Shimomura3, Kenji Imamachi4,5
1Department of Dentistry and Oral Surgery, NHO Hokkaido Cancer Center, Sapporo, Japan. hata.hironobu.wq@mail.hosp.go.jp.
将骨SPECT扫描的吸收时间缩短到2小时是可行的. 这项研究发现,在与药物相关的骨缩症的2至3小时成像期间,在技术-99m甲二酸摄入量中没有显著的临床差异.
科学领域:
- 核医学就是核医学.
- 放射性药物成像技术 放射性药物成像技术
- 在瘤学瘤学.
背景情况:
- 骨光学吸收时间可能会给患者带来负担.
- 减少骨单光子发射计算机断层扫描 (SPECT) 的吸收时间是可取的.
- 这项研究调查了骨SPECT的早期吸收时间.
研究的目的:
- 评估是否可以减少骨SPECT吸收时间.
- 为了比较2小时和3小时的最大标准化吸收值 (SUVmax).
- 评估早期SPECT成像对骨病变的临床等价性.
主要方法:
- 30名患有与药物相关的下骨硬化 (MRONJ) 的患者接受了两次SPECT/CT.
- 技术-99m甲二酸盐 (Tc-99m HMDP) 已被静脉注射.
- 在注射后2小时和3小时,对骨病变和表皮骨的SUVmax进行了比较.
主要成果:
- 在2到3小时的吸收时间之间没有观察到SUVmax的显著临床差异.
- 骨病变的SUVmax中位数为2小时后9.25和3小时后9.39.
- 协议的极限表明两个成像时间之间具有很高的等价性.
结论:
- 2小时的吸收窗口足以对大骨进行定量Tc-99m HMDP SPECT.
- 减少吸收时间可以减轻患者的负担.
- 这一发现支持对MRONJ的SPECT成像协议进行优化.
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