Fig. (1) Coronary angiogram and schematic. The coronary angiogram is shown in panel A with the proximal LAD (R.LAD1), distal LAD (R.LAD2) and LCx (R.LCx) stenoses labeled. A schematic of the circulation is shown in panel 2. The collaterals from the mid LAD to the RCA are highlighted with a dark dashed line. The proximally occluded RCA course is shown with a light dotted line.