The Korean Society of Cardiology, Korean Circulation Journal, 10(35), p. 742, 2005
DOI: 10.4070/kcj.2005.35.10.742
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BACKGROUND AND OBJECTIVES: The fractional flow reserve (FFR) and the hyperemic epicardial stenosis resistance index (hESRI) are known to be useful indexes for evaluating the hemodynamic severity of an epicardial coronary stenosis. However, the influence of the microvascular integrity of the distal segment of the lesion on the FFR and hESRI has not been clearly defined.