在接受新辅助治疗的乳腺癌患者中量化分子乳腺成像吸收变化和变化
Benjamin P Lopez1, Gaiane M Rauch2, S Cheenu Kappadath1
1Department of Imaging Physics.
Nuclear medicine communications
|December 4, 2025
概括
在新辅助全身疗法 (NST) 期间量化分子乳腺成像 (MBI) 吸收的变化需要一致的方法. 标准化轮定义可以提高瘤吸收测量的可靠性,用于纵向评估.
科学领域:
- 核医学就是核医学.
- 在瘤学瘤学.
- 医疗成像医学成像
背景情况:
- 在分子乳腺成像 (MBI) 中对99mTc-sestamibi吸收的纵向量化缺乏既定的最佳实践.
- 准确的测量对于评估新辅助全身疗法 (NST) 期间治疗反应至关重要.
研究的目的:
- 从MBI数据中量化99mTc-sestamibi吸收测量的瘤与正常组织的变异性.
- 评估这种变异性对NST期间吸收变化的分类影响.
主要方法:
- 在接受NST的60名乳腺癌患者中计算了瘤与正常组织的比率 (平均轮计数和活性度).
- 使用医生定义的轮分析了MBI图像 (NST前,中和后).
- 使用不同的轮和探测器视图对前NST图像进行量化测量变化.
主要成果:
- 在NST期间,瘤对正常组织的吸收通常下降 (10-30%在NST中期,50-70%在NST后).
- 活动度的变化率 (中位数为53%) 高于平均轮计数的变化率 (35%),主要是由于正常组织轮.
- 当从单个图像与平均图像中获得指标时,更多病例显示出显著的变化.
结论:
- 一致的MBI获取和标准化的轮定义对于强大的纵向定量评估至关重要.
- 标准化可以从异质的临床数据中提取可靠的瘤和正常组织吸收指标.
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