Problems in Applying Radial Myocardial Motion Velocity Gradient by Omni-directional M-mode Echocardiography for Regional Myocardial Function in Hypertrophic Cardiomyopathy

摘要

In their recent paper, Guo and Chen [1] studied left ventricular (LV) regional myocardial function in patients with hypertrophic cardiomyopathy (HCM) and hypertensive patients with left ventricular hypertrophy (HLVH). They measured the radial myocardial velocity gradient (MVG) with omni-directional M-mode echocardiography and found that in patients with LV hypertrophy, MVG was significantly decreased in 16 short axis segments of LV when compared to control individuals. They concluded that LV MVG directly corresponded to regionally thickened myocardial motion and suggested that omni-directional M-mode echocardiography can be used as a tool to evaluate LV myocardial function in patients with thickened myocardium, which can have a significant role in clinical applications.