Tries Hans-Peter, Lambertz Heinz, Lethen Harald
Department of Cardiology, Deutsche Klinik für Diagnostik, Wiesbaden, Federal Republic of Germany.
J Am Soc Echocardiogr. 2002 Jul;15(7):739-42. doi: 10.1067/mje.2002.118525.
Assessment of coronary flow reserve (CFR) has proven to be an important diagnostic tool providing useful clinical and physiologic information about coronary artery function. In several studies, the transthoracic echocardiographic assessment of CFR, defined as a ratio of hyperemic to basal coronary flow velocity, was validated in the left anterior descending artery. But so far, the visualization of coronary flow and the measurement of CFR were limited to the mid and distal portion of the left anterior descending artery. Introduction of a modified 2-chamber view enables the recording of coronary blood flow and the assessment of CFR in the posterior descending branch of the right coronary artery in selected patients. This report of 3 cases describes for the first time a method to visualize and measure coronary blood flow in the distal right coronary artery by precordial Doppler echocardiography.
冠状动脉血流储备（CFR）评估已被证明是一种重要的诊断工具，可提供有关冠状动脉功能的有用临床和生理信息。在多项研究中，经胸超声心动图对CFR的评估（定义为充血期与基础冠状动脉血流速度之比）在左前降支中得到了验证。但到目前为止，冠状动脉血流的可视化和CFR的测量仅限于左前降支的中、远端部分。改良双腔视图的引入使得在选定患者中能够记录右冠状动脉后降支的冠状动脉血流并评估CFR。本报告通过3例病例首次描述了一种通过心前区多普勒超声心动图可视化和测量右冠状动脉远端冠状动脉血流的方法。
