A study of systemic-to-pulmonary artery shunt deformation shape by CFD (computational fluid dynamics) |
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| Authors: | Sung-Min Kim and Park Sung-Yun |
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| Affiliation: | (1) Cardiac Intensive Care Unit, Children’s Hospital of Pittsburgh, 3705 Fifth Avenue, 15213 Pittsburgh, PA, USA;(2) Department of Pediatric Cardiology, H?pital Cardiovasculaire de Lyon, 28 Avenue Doyen L?pine, 69677 Bron cedex Lyon, France;(3) Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Children’s Hospital of Pittsburgh, 3705 Fifth Avenue, 15213 Pittsburgh, PA, USA;(4) Department of Cardiothoracic Surgery, School of Medicine, University of Pittsburgh, Children’s Hospital of Pittsburgh, 3705 Fifth Avenue, 15213 Pittsburgh, PA, USA;(5) Department of Cardiology, Children’s Hospital of Boston Harward Medical School, 300 Longwood Ave, 02115 Boston, MA, USA |
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| Abstract: | Hypoplastic left heart syndrome (HLHS) is rare but serious. It is the most common cause of death from heart disease during the first week of life. With surgical repair or a heart transplant, about 70% of children born with HLHS live for at least 5 years. The purpose of this study is to achieve an optimization of the systemic-topulmonary artery shunt. In this study, computational fluid dynamic (CFD) models were used to determine the velocity profile in a systemic-to-pulmonary artery shunt and we suggest a simplified method of calculating the blood mass flow rate in the shunt based on ultrasound systems. We analyzed the flow characteristic variations and Oscillatory Shear Index (OSI) due to the anastomosis angle and changing shunt diameter. |
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