Figure 1. Deriving slice models from histological images of post-MI macaque ventricles.

A, example histology images used to generate slice model. Left: human cardiac troponin I stained for graft. Right: Fast Green stained for myocardium and Picrosirius Red stained for collagen (i.e. scar). B, example thresholded image. Areas that are within the tissue boundary but are delineated as neither scar nor graft are deemed host myocardium. C, example slice model with grafts outlined in orange. All scale bars: 5 mm.