TY - GEN
T1 - Growth effects of anastomosis site on patient-specific aortic hemodynamics after coarctation correction
T2 - 10th Asian Control Conference, ASCC 2015
AU - Mao, Le
AU - Zhang, Weimin
AU - Hong, Haifa
AU - Sun, Qi
AU - Huang, Junrong
AU - Liu, Jinfen
AU - Liu, Jinlong
AU - Zhu, Zhongqun
AU - Qian, Yi
AU - Wang, Qian
AU - Umezu, Mitsuo
N1 - Publisher Copyright:
© 2015 IEEE.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2015/9/8
Y1 - 2015/9/8
N2 - Coarctation of the aorta (CoA) is one of the most common congenital cardiac anomalies that could be corrected by surgery. However, the effects of surgical anastomosis on aortic arch flow are still unknown. In this study, a unique three-dimensional way was utilized to measure the growth of anastomotic site and computational fluid dynamics (CFD) was applied to investigate the hemodynamic effects of the growth of anastomosis site on patient-specific aortic arch flow before, 1 year and 2 years after surgery. The volume of anastomotic site, distribution of total pressure, wall shear stress (WSS), streamlines, energy efficiency and flow distribution ratio were calculated. The results indicated that the volume of anastomotic site has grown at 2-year follow-up. The total pressure and WSS were more uniformly distributed, whereas the three branches of aortic arch showed varying degrees of hypoperfusion. Energy efficiency increased obviously as the growth of anastomotic site. Our results implied that the numerical methods can be applied to evaluate the long-term effects of anastomosis site growth on aortic arch flow.
AB - Coarctation of the aorta (CoA) is one of the most common congenital cardiac anomalies that could be corrected by surgery. However, the effects of surgical anastomosis on aortic arch flow are still unknown. In this study, a unique three-dimensional way was utilized to measure the growth of anastomotic site and computational fluid dynamics (CFD) was applied to investigate the hemodynamic effects of the growth of anastomosis site on patient-specific aortic arch flow before, 1 year and 2 years after surgery. The volume of anastomotic site, distribution of total pressure, wall shear stress (WSS), streamlines, energy efficiency and flow distribution ratio were calculated. The results indicated that the volume of anastomotic site has grown at 2-year follow-up. The total pressure and WSS were more uniformly distributed, whereas the three branches of aortic arch showed varying degrees of hypoperfusion. Energy efficiency increased obviously as the growth of anastomotic site. Our results implied that the numerical methods can be applied to evaluate the long-term effects of anastomosis site growth on aortic arch flow.
KW - anastomotic site
KW - coarctation of the aorta
KW - computational fluid dynamics
KW - congenital heart defect
KW - hemodynamics
UR - http://www.scopus.com/inward/record.url?scp=84957684204&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84957684204&partnerID=8YFLogxK
U2 - 10.1109/ASCC.2015.7244734
DO - 10.1109/ASCC.2015.7244734
M3 - Conference contribution
AN - SCOPUS:84957684204
T3 - 2015 10th Asian Control Conference: Emerging Control Techniques for a Sustainable World, ASCC 2015
BT - 2015 10th Asian Control Conference
A2 - Selamat, Hazlina
A2 - Ramli, Hafiz Rashidi Haruna
A2 - Faudzi, Ahmad Athif Mohd
A2 - Rahman, Ribhan Zafira Abdul
A2 - Ishak, Asnor Juraiza
A2 - Soh, Azura Che
A2 - Ahmad, Siti Anom
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 31 May 2015 through 3 June 2015
ER -
