Quantification of Biventricular Myocardial Strain Using CMR Feature Tracking: Reproducibility in Small Animals

Figure 1

High-resolution cine CMR images with biventricular segmentation and CMR-FT myocardial strain curves in mouse. End-diastolic frame of semi-4CH (a) and the following image after application of feature tracking algorithm (b). The LV (c) and RV (d) strain curves and peak strain obtained from semi-4CH cine images. End-diastolic (e) and end-systolic (i) frame of mid-SAX images and the following tracking pattern of end-diastolic image (f) and end-systolic image (j). The global strain curves for LV (g) and RV (k) and the segmental strain curves for LV (h) and RV (l) derived from mid-SAX cine images. LV: left ventricle; RV: right ventricle; CMR-FT: cardiovascular magnetic resonance feature tracking; 4CH: 4 chamber; SAX: short axis.