BEM performance in calculation of pressure distribution in spline based segmented medical images

Conventional methods for non-invasively estimation of pressure distribution in the cardiovascular flow domain use the differential form of governing equations. This study evaluates the advantages of using integral form of governing equations. The concepts provided with the Boundary Element Method (BEM) together with the boundary based image segmentation tools are used to develop a fast calculation algorithm. Boundary based segmentation provides facility for BEM with domain pixel extraction, boundary meshing, wall normal vector calculation and accurate calculation of boundary element length. The integral form of governing equation reviewed in detail. Both the differential and integral based formulations are evaluated using mathematical test flow image.