Using of porous portion to simulate pulmonary resistance in the computational fluid dynamic models of Fontan connection

Qi Sun, Jinlong Liu, Yi Qian, Haifa Hong, Jinfen Liu

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

    3 Citations (Scopus)

    Abstract

    In this study, we performed computational fluid dynamic (CFD) simulations in a patient-specific three-dimensional extracardiac conduit Fontan connection. The pulmonary resistance was incorporated in the CFD model by connecting porous portions in the left and right pulmonary arteries. The pressure in the common atrium was set as boundary conditions at the outlets of the pulmonary arteries. The flow rate in the innominate veins and the inferior vena cava (IVC) was set as inflow boundary conditions. Furthermore, the inflow rate of IVC was increased to 2 and 3 times of that measured to perform another two simulations and the resistance provided by the porous portions was compared among these three conditions. We found out that the pulmonary resistance set as porous portion in the CFD models remains relatively steady despite the change of the inflow rate. We concluded that, in the CFD simulations for the Fontan connections, porous portion could be used to represent pulmonary resistance steadily. The pulmonary resistance and pressure in the common atrium could be acquired directly by clinical examination. The employment of porous portion together with pressure in the common atrium in the CFD model could facilitate and accurate the set of outlet boundary conditions especially for those actual pulmonary flow splits was unpredictable such as virtual operative designs related CFD simulations.

    Original languageEnglish
    Title of host publicationProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
    Place of PublicationPiscataway, N.J
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages481-484
    Number of pages4
    Volume2013
    ISBN (Electronic)9781457702167
    DOIs
    Publication statusPublished - 2013
    Event2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013 - Osaka, Japan
    Duration: 3 Jul 20137 Jul 2013

    Other

    Other2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
    CountryJapan
    CityOsaka
    Period3/07/137/07/13

      Fingerprint

    Cite this

    Sun, Q., Liu, J., Qian, Y., Hong, H., & Liu, J. (2013). Using of porous portion to simulate pulmonary resistance in the computational fluid dynamic models of Fontan connection. In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS (Vol. 2013, pp. 481-484). [6609541] Piscataway, N.J: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/EMBC.2013.6609541