Figure 3.

Left: Occlusive venography with nomenclature for the coronary venous tree. Reproduced with permission from Spencer et al.¹⁷Right: Regional acute hemodynamic response by coronary vein tested. Box-and-whisker plot for each vein detailing the mean (solid line), range, and SD. Acute hemodynamic response values are % change in dP/dt vs baseline. There was a significant difference between groups: P = .001 (ANOVA). AIV = anterior interventricular vein; ANOVA = analysis of variance; CS = coronary sinus; LAO = left anterior oblique; MCV = middle cardiac vein.