Figure 5).

A patient with hypertrophic obstructive cardiomyopathy. Both images are extracted from functional steady-state free precession cine movies, at diastole (left) and mid-systole (right). The diastolic image displays marked thickening of the anterior septal wall. At mid-systole, there is an anterior movement of the anterior mitral valve leaflet, causing left ventricular outflow tract obstruction and a jet of high-velocity flow (arrow). Cardiovascular magnetic resonance imaging allows for quantification of the obstruction by planimetry of the left ventricular outflow tract and flow velocity quantification of the jet (not shown)