Abstract #2496
Investigation of flow instabilities in branch pulmonary arteries after repaired Tetralogy of Fallot
Pei-Hsin Wu 1 , Hsiao-Wen Chung 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
Previous studies demonstrate that branch pulmonary
arteries show flow pattern asymmetry in patients after
repair of Tetralogy of Fallot. On the other hand, the
Reynolds number (Re) has been viewed as an indicator of
flow instability and directly relates with volumetric
flow and diameter. In this study, we investigate the
flow behavior by using Reynolds number to examine
whether there is difference between branch pulmonary
arteries. The preliminary analyses show Re-related
indices of RPA are significantly higher than that of
LPA, which may imply the RPA is prone to flow
instability compared to LPA.
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