Figure 1From: Echocardiography in patients with hypertrophic cardiomyopathy: usefulness of old and new techniques in the diagnosis and pathophysiological assessment Systolic anterior motion (SAM) of the mitral valve visualized by M-Mode echocardiography. X represent the duration of SAM, whereas Y represent the time elapsed between the beginning of SAM and the SAM-septal contact (see text for more details).Back to article page