Figure 1

The normal and abnormal SLWM slice (A, D) with overlay of septo-lateral line, (B, E) M-mode with overlay of septal (magenta) and lateral (blue) wall contours, and (C, F) percentage radial contraction w.r.t. ED LV diameter. Dotted lines: ES (yellow), and onset of septal (magenta) and lateral (blue) peak contraction. Note the distinct difference in the % radial contraction pattern between the two representative cases.