Magnetic resonance imaging characterization of circumferential and longitudinal strain under various coronary interventions in swine

Figure 3 Circumferential strain rate analysis: phasic, peak, and territory time to peak systolic and diastolic strain rate. A: Circumferential strain rate curves. Data are presented as means ± SEM. In control animals, remote myocardium and location aid device (LAD) territory have identical curves, while remote vs LAD territory in all interventions were significantly different (P < 0.001); B: The LAD territory showed significantly decreased systolic strain rate in LAD territory for all interventions, with microembolized and combined groups significantly less than solely LAD occlusion. Remote myocardium showed only a decrease in microembolized and combined groups; C: The LAD territory demonstrated significantly decreased diastolic strain rate in LAD territory for all interventions. Remote myocardium again showed only significant decrease in microembolized and combined groups. Control vs LAD, ^aP < 0.05; Control vs Microemboli, ^bP < 0.01; Control vs ANOVA ^dP < 0.001.