Title :
Improving geometric model construction for blood flow modeling
Author :
Wang, Kenneth C. ; Dutton, R.W. ; Taylor, Charles A.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Abstract :
We have applied an active contour method based on level sets to the problem of image-based model construction for computational hemodynamics. The geometric nature of the segmentation algorithm makes it suitable for use with solid modeling techniques. Using the methodology shown, we have constructed models that are appropriate for use with blood flow simulation applications. We are currently extending these methods to address limitations of the current approach, including issues related to 3-D geometric accuracy and mesh quality.
Keywords :
blood vessels; cardiovascular system; computational fluid dynamics; computational geometry; flow simulation; haemodynamics; image segmentation; interpolation; medical image processing; mesh generation; physiological models; solid modelling; surface fitting; 3D geometric accuracy; acrylic phantom; active contour method; blood flow modeling; blood flow simulation; computational hemodynamics; geometric image segmentation; geometric model construction; image-based model construction; interpolation; mesh generation; mesh quality; solid modeling; surface triangulation; vascular model; volumes of intersection; Biomedical engineering; Biomedical imaging; Blood flow; Cardiovascular diseases; Computational modeling; Hemodynamics; Image segmentation; Solid modeling; Stress; Surgery; Acrylic Resins; Adult; Algorithms; Aorta, Abdominal; Blood Circulation; Blood Flow Velocity; Blood Vessels; Computer Simulation; Finite Element Analysis; Hemodynamics; Humans; Iliac Artery; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Models, Cardiovascular; Phantoms, Imaging; Renal Artery;
Journal_Title :
Engineering in Medicine and Biology Magazine, IEEE
