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Abstract #2729

Investigation of spatial flow profile pattern in branch pulmonary arteries after repaired Tetralogy of Fallot

Pei-Hsin Wu 1 , Hsiao-Wen Chung 1 , Cheng-Chieh Cheng 1 , Ming-Ting Wu 2 , and Cheng-Wen Ko 3

1 Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan, 2 Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, 3 Department of Computer Science and Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan

Qualitative investigation of repaired Tetralogy of Fallot (ToF) shows that the forward and regurgitant flow could occur in the pulmonary arteries and be recorded simultaneously in any single cardiac phase. In this study, we use the index of eccentricity and onset of regurgitant flow to quantify the spatial flow profile and the degree of flow inhomogeneity for both branch pulmonary arteries. The results show that these spatial indices could reflect the heterogeneous flow profile pattern quantitatively, and thus may find useful applications in post-surgical evaluations.

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