JACC:稳定型心绞痛冠状动脉血运重建的预测

2019-08-18 杨亚平(编译) 健康界

本研究旨在头对头比较冠状动脉CT血管造影(CTA)和心脏磁共振(CMR)应力灌注成像得出的血流储备分数(FFR)为血运重建标准,对行冠状动脉CTA检查的阻塞性冠状动脉疾病患者具有指导价值。FFRCT是一种新的无创功能检测方法。FFRCT与CMR应力灌注成像在有症状的冠状动脉疾病患者中的临床应用尚不清楚。研究纳入了已行冠状动脉CTA稳定型心绞痛患者(n=110),1处或1处以上冠状动脉狭窄≥50%,

本研究旨在头对头比较冠状动脉CT血管造影(CTA)和心脏磁共振(CMR)应力灌注成像得出的血流储备分数(FFR)为血运重建标准,对行冠状动脉CTA检查的阻塞性冠状动脉疾病患者具有指导价值。

FFRCT是一种新的无创功能检测方法。FFRCT与CMR应力灌注成像在有症状的冠状动脉疾病患者中的临床应用尚不清楚。

研究纳入了已行冠状动脉CTA稳定型心绞痛患者(n=110),1处或1处以上冠状动脉狭窄≥50%,所有患者均行有创冠状动脉造影。在狭窄范围从30%到90%,血运重建由FFR引导。由CMR分类的1个或多个冠状动脉的ffrct≤0.80或可逆性灌注缺损(≥2段),采用核心实验室盲法对FFRCT和CMR进行分析。

研究中,共有38名患者(35%)接受了血运重建。确定指导下的血运重建标准的患者诊断表现(95%置信区间)对ffrct的敏感性为97%(86-100),对cmr的敏感性为47%(31-64),P<0.001;相应的特异性为42%(30-54)对88%(78-94),P<0.001;阴性IVE预测值分别为97%(91-100)和76%(67-85),P<0.05;阳性预测值分别为47%(36-58)和67%(49-84),P<0.05;准确度分别为61%(51-70)和74%(64-82),P>0.05。

结果表明,对于稳定的胸痛患者,基于CTA、FFRCT 和CMR推荐行有创冠脉造影, FFRCT和CMR的总体诊断准确率相似。预测血运重建的敏感性在FFRCT中最高,而特异性在CMR中最高。

原文出处:

Niels Peter R?nnow Sand, Louise Nissen, et al. Prediction of Coronary Revascularization in Stable Angina: Comparison of FFRCT With CMR Stress Perfusion Imaging. JACC: Cardiovascular Imaging, In press, corrected proof,Available online 14 August 2019.

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    2020-08-01 hbwxf
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