Hemodynamic simulation for surgical treatment of congenital heart disease

Y. Qian*, J. L. Liu, J. F. Liu

*Corresponding author for this work

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

    3 Citations (Scopus)

    Abstract

    Numerical analysis of cardiovascular flow is one of several methods of use for the quantitative evaluation of patient-specific treatments. However, due to the complexity of vascular geometry and flow conditions, the cardiovascular flow simulation continues to be a challenging project. As the flow at the peak of systolic heart beat displayed full turbulence, the congenital heart treatments, Norwood and TCPC procedure, were investigated through the use of computational hemodynamic technology, in the present study. On the other hand, at diastolic period, the flow fell to an almost sedentary state. This indicated that the cardiovascular flow experienced a strange transition of flow from systolic peak to diastole. Thus, in order to accurately simulate this transitional flow, a very small time step was applied in the k turbulent model calculation. Energy losses (EL), local pressure and wall shear stress were analyzed to estimate the result of clinical treatments. It was found that the value of EL, including the influence of respiration, was 1.5 times higher than the value of EL, disregarding respiratory influences. These results indicated that the hemodynamic outcomes of TCPC treatment are noticeably influenced by respiration. The effect of respiration plays an important role in estimating the results of TCPC treatment and thus should be included as one of the important conditions of computational hemodynamic analysis.

    Original languageEnglish
    Title of host publication2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012
    Place of PublicationSan Diego, CA, United States
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages661-664
    Number of pages4
    Volume2012
    ISBN (Electronic)9781457717871
    ISBN (Print)9781424441198
    DOIs
    Publication statusPublished - 2012
    Event34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012 - San Diego, CA, United States
    Duration: 28 Aug 20121 Sep 2012

    Publication series

    NameProceedings of the annual international conference of the IEEE Engineering in Medicine and Biology Society
    PublisherIEEE
    ISSN (Print)1094-687X
    ISSN (Electronic)1557-170X

    Other

    Other34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2012
    CountryUnited States
    CitySan Diego, CA
    Period28/08/121/09/12

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  • Cite this

    Qian, Y., Liu, J. L., & Liu, J. F. (2012). Hemodynamic simulation for surgical treatment of congenital heart disease. In 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012 (Vol. 2012, pp. 661-664). [6346018] (Proceedings of the annual international conference of the IEEE Engineering in Medicine and Biology Society). San Diego, CA, United States: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/EMBC.2012.6346018