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Quantitative signature of coronary steal in a patient with occluded coronary arteries supported by collateral circulation using dynamic SPECT

机译:用动态SPECT通过抵押循环支撑闭锁冠状动脉患者冠状动脉偷窃的定量签名

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Coronary steal (CS) is a physiological process that induces absolute decrease in blood flow in collateralized myocardium compared to resting flow during coronary vasodilation due to redistribution of blood away from collateral-dependent myocardium. Although, CS has been well known for decades, there are very few noninvasive perfusion studies in humans that quantitatively predict the existence of CS. In this study, we show that the quantitative measurement of absolute value of regional myocardial blood flow (MBF) and coronary flow reserve (CFR) using dynamic single photon emitted computed tomography (SPECT) can help estimate the presence of CS in myocardium with obstructed coronary artery and collateral circulation.
机译:冠状动脉窃取(CS)是与冠状动脉血管血管血管过程中的休息流程相比,冠状动脉化心肌中血流绝对降低的生理过程,因为血液血管血管的再分布来自抵抗依赖性心肌。虽然,CS几十年来众所周知,人类的非侵入性灌注研究非常少,可以预测CS的存在。在这项研究中,我们表明,使用动态单光子发射的计算机断层摄影(SPECT)的区域心肌血流(MBF)和冠状动物流量储备(CFR)的定量测​​量可以帮助估计冠状动脉阻塞中的心肌中的Cs。动脉和抵押循环。

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