Abstract #0726

Assessment of Blood Flow Patterns in the Pulmonary Artery with 4D Flow MRI

Pablo Bchler¹, Natalia Pinochet¹, Grard Crelier², Cristin Tejos^3,4, Pablo Irarrazaval^3,4, Sergio Uribe^4,5

¹School of Medicine, Pontificia Universidad Catlica, Santiago, Chile; ²Institute for Biomedical Engineering, University & ETH, Zurich, Switzerland; ³Electrical Engineering Department, Pontificia Universidad Catlica, Chile; ⁴Biomedical Imaging Center, Pontificia Universidad Catlica, Chile; ⁵Radiology Department, Pontificia Universidad Catlica, Chile

4D Flow has been used to study blood flow patterns, mainly in the aorta. We performed a flow pattern analysis in the Pulmonary Artery (PA). 4D Flow depicted complex flow patterns in the PA, revealing two vortices in the main PA and one in the right PA in healthy subjects. Abnormal blood flow patterns were seen in patients with different Congenital Heart Diseases (CHD), revealing complex hemodynamics in the pulmonary circuit. Knowledge of abnormal flow patterns in the PA in patients with CHD has the potential to contribute to improve current surgical interventions in this group of patients.