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By analyzing the deforming tag patterns between (A) diastole and (B) systole, it is possible to create (C) regional quantitative circumferential strain maps. Left ventricular strain describes how a (D) ‘reference’ region (gray circle) in diastole deforms via circumferential shortening (dashed line) and radial thickening (solid line) at peak systole.
DMD: Duchenne muscular dystrophy.
