Figure 4

Segmental timing of peak strain in left ventricular long-axis and short-axis recordings. Segmental timing of peak strain, expressed as the time interval from the electrocardiographic R wave to longitudinal, circumferential, and radial peak strain of each segment. A: Time to longitudinal peak strain (t_εL) in left ventricular long-axis recordings. B: Time to circumferential peak strain (t_εC) in left ventricular short-axis recordings at the apical level. C: Time to radial peak strain (t_εR) in left ventricular short-axis recordings at the apical level. D: Time to circumferential peak strain (t_εC) in left ventricular short-axis recordings at the papillary muscle level. E: Time to radial peak strain (t_εR) in left ventricular short-axis recordings at the papillary muscle level. F: Time to circumferential peak strain (t_εC) in left ventricular short-axis recordings at the chordal level. G: Time to radial peak strain (t_εR) in left ventricular short-axis recordings at the chordal level. Box-and-whisker diagrams, with the line near the middle of the box indicating the median, the top and the bottom of the box indicating the upper and lower quartile, and the whiskers indicating the 5^th and 95^th percentile observations, respectively. P values of the F test are listed next to each graph; factors for which multiple comparison post hoc testing was performed are displayed in italics. Segments and treatments marked with the same letter were not significantly different from each other when undergoing post hoc testing for multiple comparisons.