Fig. 2.

(Top) Non-diffusion-weighted image in a mid-ventricular short-axis slice acquired at 100 μm isotropic resolution, including magnified views in the lateral wall of the left ventricle as seen from the apex – base (AB), anterior wall - posterior wall (AP) and lateral wall - septal wall (LS), along with corresponding diffusion tensors. (Bottom) Matching SRI images reconstructed at 3.6 μm isotropic resolution reveal cellular (dark grey) and extracellular (extracellular fluid and vasculature; light grey) structures, along with corresponding structure tensors. Tensors are coloured by helix angle as determined by v _1,DT and v _3,ST