The anterior interventricular artery/great cardiac vein line and LVS arcuate line, the accessible part of the LVS, are present. The accessible area is mostly irregular in shape, with the presence of coronary vessels originating from the inaccessible area and anterior coronary veins draining into the coronary venous system. In addition, the density of coronary branches is significantly lower, and epicardial adipose tissue is less abundant than in inaccessible areas. Thus, it is named “accessible”. Moreover, the accessible LVS area is often uncovered by the left atrial appendage with epicardial approach possibility [68].