cCTA images showed a diffusely dilated right coronary artery (RCA) as well as the first diagonal branch (D1) connecting via tortuous distal segments with a single fistulous connection, draining into the left ventricle (LV) chamber. The fistula had a small caliber with a bulbous change at the entrance. The drainage site was situated below the posterior atrioventricular groove. There were no signs of a LV hypertrophy present.
Prospective ECG triggered sequential scan
176 x 0.6 mm
76 - 84 bpm
60 mL + 30mL saline
Bolus tracking with 100 HU at ascending aorta + 5 s