Intravascular ultrasound to guide stenting of an anomalous right coronary artery coursing between the aorta and pulmonary artery.

We report on a case of anomalous right coronary artery with interarterial course which caused severe symptoms and was treated percutaneously after failed bypass surgery. Using intravascular ultrasound (IVUS) guidance, a drug eluting stent was placed at the ostium of the anomalous artery, correcting both the baseline narrowing and the phasic, systolic arterial compression.