Speckle tracking echocardiography to assess regional ventricular function in patients with apical hypertrophic cardiomyopathy

Figure 4 The dotted line shows the mean global longitudinal peak systolic strain in the 20 patients. Midwall strain is shown in blue and endocardial strain is shown in red. In both lines, each point illustrates the strain value in each of the 17 segments (Basal segments: segments 1-6; Medial segments: segments 7-12; Apical segments: segments 13-17).