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Abstract #1196

Normal Values of Wall Shear Stress in the Pulmonary Artery from 4D Flow Data

Julio Sotelo1, 2, Pablo Bchler, 23, Steren Chabert1, 2, Claudia Prieto, 24, Daniel Hurtado5, Pablo Irarrzaval, 24, Cristian Tejos, 24, Sergio Uribe, 26

1Biomedical Engineering Department, Faculty of Biological Science, Universidad de Valparaso, Valparaso, Chile; 2Biomedical Imaging Center, Pontificia Universidad Catlica de Chile, Santiago, Chile; 3School of Medicine, Pontificia Universidad Catlica de Chile, Santiago, Chile; 4Electrical Engineering Department, Faculty of Engineering, Pontificia Universidad Catlica de Chile, Santiago, Chile; 5Structural Engineering Department, Faculty of Engineering, Pontificia Universidad Catlica de Chile, Santiago, Chile; 6Radiology Department, School of Medicine, Pontificia Universidad Catlica de Chile, Santiago, Chile

In this work we proposed a novel and reproducible method to calculate WSS derived from 4D flow data, in the main pulmonary artery (PA), right PA (RPA) and left PA (LPA), of volunteers and patients with Congenital Heart Diseases (CHD). In volunteers we found a greater WSS in the RPA compared with the LPA, which is probably associated with helical flow pattern in the RPA. Values of WSS obtained in patients with CHD showed increasing values and great variability of WSS. In conclusion, this method may be helpful to identify patient with CHD at risk of developing Pulmonary Arterial Hypertension.

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Keywords

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