Flow Profiles in the Left Anterior Descending and the Right Coronary Artery Assessed by MR Velocity Quantification: Effects of Through-Plane and In-Plane Motion of the Heart

Abstract

It is confirmed noninvasively with MR that the LAD shows a predominantly diastolic flow, whereas the RCA shows about equal flow values in systole and diastole. Through-plane motion correction is required for assessing the true flow patterns. The in-plane velocities of the coronary artery cross-sections imply a maximum data acquisition time window, estimated at 58 ms for the LAD and at 23 ms for the RCA.