Computational modelling of the hybrid procedure in hypoplastic left heart syndrome: a comparison of zero-dimensional and three-dimensional approach

Young, A., Gourlay, T., McKee, S. and Danton, M. H.D. (2014) Computational modelling of the hybrid procedure in hypoplastic left heart syndrome: a comparison of zero-dimensional and three-dimensional approach. Medical Engineering and Physics, 36(11), pp. 1549-1553. (doi: 10.1016/j.medengphy.2014.08.015)

Abstract

Previous studies have employed generic 3D-multiscale models to predict haemodynamic effects of the hybrid procedure in hypoplastic left heart syndrome. Patient-specific models, derived from image data, may allow a more clinically relevant model. However, such models require long computation times and employ internal pulmonary artery band [dint] dimension, which limits clinical application. Simpler, zero-dimensional models utilize external PAB diameters [dext] and provide rapid analysis, which may better guide intervention. This study compared 0-D and 3-D modelling from a single patient dataset and investigated the relationship dint versus dext and hemodynamic outputs of the two models. Optimum oxygen delivery defined at dint = 2 mm corresponded to dext = 3.1 mm and 3.4 mm when models were matched for cardiac output or systemic pressure, respectively. 0-D and 3-D models when matched for PAB dimension produced close equivalence of hemodynamics and ventricular energetics.

From this study we conclude that 0-D model can provide a valid alternative to 3D-multiscale in the hybrid–HLHS circulation.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Danton, Professor Mark
• Authors: Young, A., Gourlay, T., McKee, S., and Danton, M. H.D.
• College/School: College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing
• Journal Name: Medical Engineering and Physics
• Publisher: Elsevier Ltd.
• ISSN: 1350-4533
• ISSN (Online): 1873-4030