Predicting Pediatric Pulmonary Vein Stenosis Outcomes Using Data Acquired During a Cardiac Catheterization

"There are four components to the pulmonary vein assessment.~1. Angiography: pulmonary artery wedge injection and/or selective pulmonary vein injection.~2. Intravascular ultrasound: manual pullback of IVUS catheter from lobar segment to left atrium.~3. Pressure assessment: pulmonary vein pressure (mmHg) measured before and after (if applicable) intervention.~4. Compliance testing: the compliance of the vein will be measured using a compliant conventional balloon."