Figure Legend:
Figure 1: Short axis view of the posterior descending artery.
Note the significant calcifications and subsequent acoustic shadowing. A
branch of the middle cardiac vein is present on the right side of the
picture.
Video 1: This video shows the presence of retrograde
cardioplegia flow within the cardiac arterial and venous system during
cardiopulmonary bypass.
Figure 2: Short axis view of the left anterior descending
artery. The arrows points to the presence of calcification.
Additionally, intraluminal irregularities are noted within the artery.