Fig. 3

Volume and strain curves derived from feature tracking. Examples of phasic volume/time (left) and strain/time (right) curves demonstrating right atrial (RA) volume and global strain respectively, in black. Also demonstrated are strain curves of different segments in color, on right. The blue and yellow lines correspond with the lateral wall, green line with the basal wall, and orange and grey lines with the septal wall. Volume measurements on left. Strain measurements were taken at maximum (solid black) and again after excluding the septal segments, on right