Journal
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
Volume 29, Issue 8, Pages 1429-1443Publisher
SAGE PUBLICATIONS INC
DOI: 10.1038/jcbfm.2009.58
Keywords
CBF; ischemia; modeling; oxygen transport
Categories
Ask authors/readers for more resources
At its most fundamental level, cerebral blood flow (CBF) may be modeled as fluid flow driven through a network of resistors by pressure gradients. The composition of the blood as well as the cross-sectional area and length of a vessel are the major determinants of its resistance to flow. Here, we introduce a vascular graph modeling framework based on these principles that can compute blood pressure, flow and scalar transport in realistic vascular networks. By embedding the network in a computational grid representative of brain tissue, the interaction between the two compartments can be captured in a truly three-dimensional manner and may be applied, among others, to simulate oxygen extraction from the vessels. Moreover, we have devised an upscaling algorithm that significantly reduces the computational expense and eliminates the need for detailed knowledge on the topology of the capillary bed. The vascular graph framework has been applied to investigate the effect of local vascular dilation and occlusion on the flow in the surrounding network. Journal of Cerebral Blood Flow & Metabolism (2009) 29, 1429-1443; doi: 10.1038/jcbfm. 2009.58; published online 13 May 2009
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available