Maximal Myocardial Perfusion as a Measure of the Functional Significance of Coronary Artery Disease

Coronary flow reserve is a functional measure of stenosis severity re­ flecting the integrated effects of its geometry including percent stenosis, absolute lumen area, length and shape. Its clinical application has been primarily qualitative in non-invasive, perfusion imaging. Measurement of coronary flow reserve during routine coronary arte­ riography has been an elusive goal. Transit time and in...