Title :
BEM Performance in Calculation of Pressure Distribution in Spline Based Segmented Medical Images
Author :
Pashaee, A. ; Fatouraee, N.
Author_Institution :
Amirkabir Univ. of Technol. (Tehran Polytech.), Tehran
Abstract :
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.
Keywords :
biological fluid dynamics; blood pressure measurement; boundary-elements methods; cardiovascular system; image segmentation; medical image processing; boundary element length; boundary element method; boundary meshing; cardiovascular flow; mathematical test flow image; noninvasive estimation; pixel extraction; pressure distribution; spline based image segmentation; wall normal vector calculation; Biomedical imaging; Cardiology; Computational fluid dynamics; Differential equations; Image segmentation; Integral equations; Magnetic resonance imaging; Navier-Stokes equations; Pressure measurement; Spline; Algorithms; Blood Flow Velocity; Humans; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Models, Cardiovascular;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4353333
