Hemodynamic analysis of modified Blalock-Taussig shunt

Effects of anastomosis angle of the conduit on pulmonary flow

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

*Corresponding author for this work

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

    Abstract

    To treat cyanotic congenital heart defect, modified Blalock-Taussig (mB-T) shunt is an effective procedure used in clinic. The pulmonary artery is bridged by a conduit with the systemic circulation to increase the flow of blood. Here, we report on three-dimensional (3D) hemodynamic analysis of the effects of conduit anastomosis angle on pulmonary flow. A 3D model based on post-operative medical images of the mB-T shunt was constructed and computer-aided design (CAD) was applied to create a new model with vertical anastomosis angle of the conduit at pulmonary artery. Local hemodynamics like total pressure, wall shear stress (WSS) and blood flow distribution ratio (FDR) were calculated. The scheme of vertical anastomosis angle of the conduit on the pulmonary artery can increase the blood flow distribution to two lungs and blood flows more smoothly in the conduit. These are well congruent with our clinical experience. This indicates the numerical methods can be applied to investigate hemodynamics of the mB-T shunt for the prediction of pulmonary flow and optimized the conduit implantation by virtual design for patient-specific surgery in future.

    Original languageEnglish
    Title of host publicationProceedings - 2014 7th International Conference on BioMedical Engineering and Informatics, BMEI 2014
    EditorsDong Xie, Ron Yang, Jinguang Sun, Lipo Wang, Xiaowei Hui, Ying Chen
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages441-445
    Number of pages5
    ISBN (Electronic)9781479958382
    DOIs
    Publication statusPublished - 2014
    Event2014 7th International Conference on BioMedical Engineering and Informatics, BMEI 2014 - Dalian, China
    Duration: 14 Oct 201416 Oct 2014

    Other

    Other2014 7th International Conference on BioMedical Engineering and Informatics, BMEI 2014
    CountryChina
    CityDalian
    Period14/10/1416/10/14

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    Liu, J., Sun, Q., Hong, H., Du, Z., Wang, Q., Sun, Y., ... Qian, Y. (2014). Hemodynamic analysis of modified Blalock-Taussig shunt: Effects of anastomosis angle of the conduit on pulmonary flow. In D. Xie, R. Yang, J. Sun, L. Wang, X. Hui, & Y. Chen (Eds.), Proceedings - 2014 7th International Conference on BioMedical Engineering and Informatics, BMEI 2014 (pp. 441-445). [7002815] Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/BMEI.2014.7002815