区分宏血管和微血管缺血使用动态心肌输血压力-CT动态心肌输血的碎形分析
Florian Michallek1, Satoshi Nakamura, Tairo Kurita
1From the Department of Radiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany (F.M., M.D.); Department of Advanced Diagnostic Imaging, Mie University Graduate School of Medicine, Tsu, Japan (F.M., K.K.); Department of Radiology, Mie University Graduate School of Medicine, Tsu, Japan (S.N., H.S.); Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan (T.K.); Department of Advanced MRI Collaborative Research, Tohoku University Graduate School of Medicine, Sendai, Japan (H.O.); Department of Cardiology, Tohoku University Graduate School of Medicine, Sendai, Japan (K.N.); Saiseikai Matsuyama Hospital, Matsuyama, Japan (R.O.); Takasaki General Medical Center, Takasaki, Japan (T.S.); National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan (H.N.); Peking Union Medical College Hospital, Beijing, China (Y.-N.W.); Kobe University Graduate School of Medicine, Kobe, Japan (T.I.); German Center for Cardiovascular Research, Berlin, Germany (M.D.); and Deutsches Herzzentrum der Charité (M.D.), Berlin, Germany.
4D-CTP的碎形分析有效地区分了冠状动脉疾病 (CAD) 和冠状小血管疾病 (CMD),即使在复杂的病例中,如缺血和非阻塞冠状动脉 (INOCA). 这项多中心研究证实了其准确性,用于非侵入性诊断这些疾病的准确性.
科学领域:
- 心血管成像 - 心血管成像
- 放射学 放射学是一门学科.
- 医学诊断 医学诊断 医学诊断
背景情况:
- 冠状动脉疾病 (CAD) 和冠状小血管疾病 (CMD) 是心肌缺血的重要原因.
- 阻塞性CAD和CMD的非侵入性分化仍然具有挑战性.
- 动态心肌应力计算断层成像 (4D-CTP) 提供了一个潜在的非侵入性解决方案.
研究的目的:
- 为了在多中心环境中验证4D-CTP的碎形分析.
- 评估碎形分析在区分CAD和CMD的诊断准确性.
- 为了评估缺血和非阻塞冠状动脉 (INOCA) 和轻度至中度狭窄的子组的表现.
主要方法:
- 一项多中心试验 (AMPLIFiED) 包括怀疑患有慢性心肌缺血症的患者.
- 患者接受了双源CT血管造影,4D-CTP和CT延迟增强成像.
- 一个结合的参考标准 (具有FFR的侵入性血管造影,CT-MBF) 定义了CAD,CMD和正常输液.
主要成果:
- 碎形分析准确地区分了CAD,CMD和正常输液 (多类AUC0.92).
- 在患有缺血症的患者中,CAD与CMD的准确性为89% (AUC0.83).
- 在INOCA和轻度中度狭窄症小组中,碎形分析获得了高准确度 (88-89%) 和AUC (0.94-0.95).
结论:
- 4D-CTP的碎形分析是一种验证的,准确的方法,用于在多中心环境中区分CAD和CMD.
- 该技术在INOCA和轻度至中度狭窄症的子组中显示出高的诊断性能.
- 这种非侵入性方法有望改善冠状动脉病理的诊断.


