Strain results from the computational deforming phantom at peak systole, (a) Location of 200 co-planar mid-slice query points (Xq, red), where strain and displacement errors are measured. Analytic peak systolic transmural strain results across all Xq from endocardium to epicardium are shown for (b) Ecc, (c) Eff, (d) Ell, and (e) Err. (e) Transmural Jacobian results. The Jacobian describes the myocardium change in volume, i.e., the myocardium compressibility, 1 being perfectly incompressible.