Cardiac MR imaging provides valuable complementary information to echocardiography for characterizing altered blood flow patterns in hypertrophic cardiomyopathy phenotypes with mid-LV obstruction.
Cardiac MR imaging provides valuable complementary information to echocardiography for characterizing complex blood flow patterns in specific hypertrophic cardiomyopathy phenotypes, such as mid-LV obstruction and apical aneurysms.
MR imaging is increasingly used in evaluation of patients with known or suspected hypertrophic cardiomyopathy (HCM), as it provides useful information on cardiac structure, function, and tissue characterization that is complementary to echocardiography. While the adverse effect of left ventricle (LV) outflow tract obstruction on blood flow patterns is well characterized by the midsystolic drop in LV ejection velocities and flow, flow patterns in HCM with mid-LV obstruction, with or without apical aneurysm, are less well characterized. MR imaging can provide additional information on alterations of blood flow patterns in these HCM phenotypes and "paradoxic" flows associated with apical aneurysms.
Fujikura et al. (Wed,) conducted a review in Hypertrophic cardiomyopathy (HCM). Cardiac MR imaging was evaluated. Cardiac MR imaging provides valuable complementary information to echocardiography for characterizing altered blood flow patterns in hypertrophic cardiomyopathy phenotypes with mid-LV obstruction.