Transmural helix angle gradients between transmural layers.

Endocardial, sub-endocardial, mid-wall, sub-epicardial, and epicardial. Gradients were calculated based on the data displayed in Fig 4. Color coding: Endo- to sub-endocardial gradient (blue), sub-endocardial to mid-wall gradient (light blue), mid-wall to sub-epicardial gradient (yellow), and sub-epicardial to epicardial gradient (red). The complete transmural gradient is displayed with mean ± one standard deviation.