4.6 Article

The Hemodynamic Effect of Modified Blalock-Taussig Shunt Morphologies: A Computational Analysis Based on Reduced Order Modeling

期刊

ELECTRONICS
卷 11, 期 13, 页码 -

出版社

MDPI
DOI: 10.3390/electronics11131930

关键词

computational fluid dynamics; reduced order modeling; hemodynamics; Modified Blalock-Taussig Shunt; RBF mesh morphing; Medical Digital Twin

资金

  1. European High-Performance Computing Joint Undertaking (JU) [951745]
  2. European Union
  3. European Union [859836]

向作者/读者索取更多资源

A Medical Digital Twin pipeline based on reduced order modeling is presented for fast and interactive evaluation of the hemodynamic parameters of Modified Blalock Taussig Shunt (MBTS). The study demonstrates the potential of the proposed approach for real-time investigation of the effects of different MBTS morphologies on hemodynamic features.
The Modified Blalock Taussig Shunt (MBTS) is one of the most common palliative operations in case of cyanotic heart diseases. Thus far, the decision on the position, size, and geometry of the implant relies on clinicians' experience. In this paper, a Medical Digital Twin pipeline based on reduced order modeling is presented for fast and interactive evaluation of the hemodynamic parameters of MBTS. An infant case affected by complete pulmonary atresia was selected for this study. A three-dimensional digital model of the infant's MBTS morphology was generated. A wide spectrum of MBTS geometries was explored by introducing twelve Radial Basis Function mesh modifiers. The combination of these modifiers allowed for analysis of various MBTS shapes. The final results proved the potential of the proposed approach for the investigation of significant hemodynamic features such as velocity, pressure, and wall shear stress as a function of the shunt's morphology in real-time. In particular, it was demonstrated that the modifications of the MBTS morphology had a profound effect on the hemodynamic indices. The adoption of reduced models turned out to be a promising path to follow for MBTS numerical evaluation, with the potential to support patient-specific preoperative planning.

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