Figure 1 A – left ventricular summit in gross dissection at the level of the fibrous skeleton of the heart, B – LVS in an angio-CT rendered image. Abbreviations: LVS = left ventricular summit; LAD = left anterior descending artery; LCA – left coronary artery; Cx = circumflex branch of left coronary artery; GCV = great cardiac vein; AIV = anterior interventricular vein; SP= septal perforator; LAA = left atrial appendage; PT = pulmonary trunk, PV pulmonary valve, MV – mitral valve, AV – aortic valve. red asterisk – inaccessible area; green asterisk accessible area; violet asterisk - septal summit; black asterisk – aortiomitral continuity; yellow asterisk – apex of LVS.