Retrograde systolic flow in the main pulmonary artery (PA) is a hallmark echocardiographic sign of patent ductus arteriosus. We describe a case of PA aneurysm mimicking patent ductus arteriosus flow. Using 4-dimensional flow cardiac magnetic resonance imaging, this echocardiographic feature is explained and altered flow dynamics in the aneurysmal PA are visualized. (Level of Difficulty: Intermediate.).
Keywords: 4-dimensional phase contrast flow; 4Dflow, 4-dimensional phase contrast flow; CMR, cardiac magnetic resonance; MPA, main pulmonary artery; PDA, patent ductus arteriosus; cardiac magnetic resonance imaging; pulmonary artery aneurysm.
Crown Copyright © 2020 Published by Elsevier on behalf of the American College of Cardiology Foundation.