Diagnostic Accuracy of Quantitative Flow Ratio for Assessing Myocardial Ischemia in Prior Myocardial Infarction
Diagnostic Accuracy of Quantitative Flow Ratio for Assessing Myocardial Ischemia in Prior Myocardial Infarction
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DOI：
10.1253/circj.cj-17-0949
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发表时间：
2018-03-01
影响因子：
3.3
通讯作者：
Akasaka, Takashi
中科院分区：
文献类型：
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作者：
Emori, Hiroki;Kubo, Takashi;Akasaka, Takashi
背景：定量血流比（QFR）是一种新的冠状动脉狭窄功能严重程度指标，由于QFR是通过三维定量冠状动脉造影计算的，因此可能不考虑先前心肌梗死（MI）中存活心肌的数量。方法与结果：我们分析了心肌梗死相关冠状动脉（n=75）和非心肌梗死相关冠状动脉（n=75）的QFR（固定流量QFR [fQFR]和对比流量QFR [cQFR]）和血流储备分数（FFR）。fQFR和cQFR与既往心肌梗死相关冠状动脉FFR直接相关(fQFR: r=0.84， P
Background: A novel index of the functional severity of coronary stenosis, quantitative flow ratio (QFR), may not consider the amount of viable myocardium in prior myocardial infarction (MI) because QFR is calculated from 3D quantitative coronary angiography.Methods and Results: We analyzed QFR (fixed-flow QFR [fQFR] and contrast-flow QFR [cQFR]) and fractional flow reserve (FFR) in prior-MI-related coronary arteries (n=75) and non-prior-MI-related coronary arteries (n=75). Both fQFR and cQFR directly correlated with FFR in the prior-MI-related coronary arteries (fQFR: r=0.84, P