Influence of conduit angles on hemodynamics of modified Blalock-Taussig shunt

Computational analysis of patient-specific virtual procedures

Jinlong Liu*, Qi Sun, Mitsuo Umezu, Yi Qian, Haifa Hong, Zhou Du, Qian Wang, Yanjun Sun, Jinfen Liu

*Corresponding author for this work

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

    6 Citations (Scopus)

    Abstract

    Currently, the modified Blalock-Taussig (mB-T) shunt is the most preferred surgery served as the first step of the staged procedures in the treatment of cyanotic congenital heart defect. A Gore-Tex conduit is used to surgically connect the systemic and pulmonary circulations. In the present study, we report on three-dimensional (3D) hemodynamic analysis of the effects of conduit anastomosis angles on hemodynamics of the mB-T shunt. We constructed a patient-specific 3D model after the mB-T shunt based on medical images and employed computer-aided design to reconstruct two new models with different anastomosis angles. The local pressure, blood flow distribution and wall shear stress were calculated. The results suggest the scheme of vertical anastomosis angle of the conduit on the pulmonary artery can increase the blood flow distribution from systemic circulation to two lungs and blood flows more smoothly in the conduit. The results are well congruent with our clinical experience. This indicates the numerical methods may be applied to investigate hemodynamics of the mB-T shunt for different surgical schemes.

    Original languageEnglish
    Title of host publicationLife system modeling and simulation
    Subtitle of host publicationInternational Conference on Life System Modeling and Simulation, LSMS 2014, and International Conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2014, Shanghai, China, September 20-23, 2014, proceedings, part I
    EditorsShiwei Ma, Li Jia, Xin Li, Ling Wang, Huiyu Zhou, Xin Sun
    Place of PublicationHeidelberg
    PublisherSpringer, Springer Nature
    Pages62-71
    Number of pages10
    ISBN (Electronic)9783662452837
    ISBN (Print)9783662452820
    DOIs
    Publication statusPublished - 2014
    EventInternational Conference on Life System Modeling and Simulation, LSMS 2014 and International Conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2014 - Shanghai, China
    Duration: 20 Sep 201423 Sep 2014

    Publication series

    NameCommunications in computer and information science
    PublisherSpringer-Verlag
    Volume461
    ISSN (Print)1865-0929
    ISSN (Electronic)1865-0937

    Conference

    ConferenceInternational Conference on Life System Modeling and Simulation, LSMS 2014 and International Conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2014
    CountryChina
    CityShanghai
    Period20/09/1423/09/14

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