Growth effects of anastomosis site on patient-specific aortic hemodynamics after coarctation correction

A numerical study

Le Mao, Weimin Zhang, Haifa Hong, Qi Sun, Junrong Huang, Jinfen Liu, Jinlong Liu, Zhongqun Zhu*, Yi Qian, Qian Wang, Mitsuo Umezu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

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.

Original languageEnglish
Title of host publication2015 10th Asian control conference
Subtitle of host publicationEmerging control techniques for a sustainable world, ASCC 2015
EditorsAzura Che Soh, Hazlina Selamat, Ribhan Zafira Abdul Rahman, Asnor Juraiza Ishak, Siti Anom Ahmad, Hafiz Rashidi Harun Ramli, Ahmad Athif Mohd Faudzi
Place of PublicationUnited States
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-5
Number of pages5
ISBN (Electronic)9781479978625
ISBN (Print)9781479978632
DOIs
Publication statusPublished - Sep 2015
Event10th Asian Control Conference, ASCC 2015 - Kota Kinabalu, Malaysia
Duration: 31 May 20153 Jun 2015

Other

Other10th Asian Control Conference, ASCC 2015
CountryMalaysia
CityKota Kinabalu
Period31/05/153/06/15

    Fingerprint

Cite this

Mao, L., Zhang, W., Hong, H., Sun, Q., Huang, J., Liu, J., ... Umezu, M. (2015). Growth effects of anastomosis site on patient-specific aortic hemodynamics after coarctation correction: A numerical study. In A. C. Soh, H. Selamat, R. Z. A. Rahman, A. J. Ishak, S. A. Ahmad, H. R. H. Ramli, & A. A. M. Faudzi (Eds.), 2015 10th Asian control conference: Emerging control techniques for a sustainable world, ASCC 2015 (pp. 1-5). [7244734] United States: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ASCC.2015.7244734