Figure 1

Quantitative tractography of the myocardium: myofibers in the lateral wall of a human heart (A) and the remote zone (lateral wall) of a sheep heart with a large anteroseptal infarct (B) are shown. The tracts are color-coded by their median helix angle and are being viewed from their epicardial surface. (C-D) The tracts have been vertically rotated by 180 degrees and are being viewed from their endocardial surface. Fibers in the subepicardium of the remote zone have undergone a positive (right-handed) shift and become more circumferential.