Figure 1.
VOM cannulation technique and VOM relationship with the MI. A, Procedural steps: from left to right: initial CS venogram (dotted rectangle shows VOM and area in subsequent panels), VOM with a quadripolar catheter, and an angioplasty balloon at different levels of the VOM where ethanol is delivered. B, Anatomical variability of the MI length (black arrows from left inferior pulmonary vein, LIPV, to the CS) in selective VOM venograms. Right (RAO) or left (LAO) anterior oblique views as indicated.