Figure 3: Collateral vessel analysis via the gastroepiploic artery. (A) Gastroepiploic artery (black arrow) perfused the omentum and the myocardial tissue as detected by angiography via the gastroepiploic artery. The white broken line indicates the edge of the heart. (B) Representative image of the presence of microvascular collateral vessels (white arrow) in the treated myocardium by X-ray micro-computed tomography.