Two representative stained histological sections using haematoxylin-eosin of normal myocardium from different sites in the Ovine left ventricle.

<p>Left: unprocessed image. Right: convolved images identifying transmural anisotropy vectors in two dimensions from multiple sites indicated (circles) within each section. Circles arranged from epicardium (top) to endocardium (bottom). Anisotropy vectors orientated vertically at epicardial layer with distinct transitioning to horizontal orientation at the mid myocardial layer followed by diagonal orientation at the endocardial layer.