Uncertainty Quantification of Cardiac Properties | 93 Figure 7. Longitudinal estimations subject 1 Echocardiographic deformation imaging was performed at baseline, and after 4.5 and 9.1 years of followup. Computer simulations showed homogeneous RV contractility, activation delay, compliance, and work at baseline. At last follow-up, subject 1 developed an abnormal deformation pattern of the basal RV. Estimation of RV tissue properties from these deformation data showed an apex-to-base heterogeneity in activation delay, compliance and work density. Figure 8. Longitudinal estimations subject 2 Echocardiographic deformation imaging was performed at baseline, and after 5.2 and 7.3 years of follow-up. Subject 2 had normal RV deformation patterns at baseline and did not develop clear deformation abnormalities during follow-up. Contractility, compliance, and work density were estimated homogeneously at baseline. 5
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