Discrete vessel heat transfer in perfused tissue - model comparison

Autor:	Maciej Stańczyk, AA Anton van Steenhoven, Gerard M. J. van Leeuwen
Přispěvatelé:	Cardiovascular Biomechanics, Energy Technology
Jazyk:	angličtina
Rok vydání:	2007
Předmět:	Models Anatomic Radiological and Ultrasound Technology Countercurrent exchange Computer science Tissue Model Temperature Arteries Biological tissue Mechanics Veins Perfusion Heat flux Heat transfer Computer Simulation Radiology Nuclear Medicine and imaging Representation (mathematics)
Zdroj:	Physics in Medicine and Biology, 52(9), 2379-2391. Institute of Physics
ISSN:	1361-6560 0031-9155
DOI:	10.1088/0031-9155/52/9/004
Popis:	The aim of this paper is to compare two methods of calculating heat transfer in perfused biological tissue using a discrete vessel description. The methods differ in two important aspects: the representation of the vascular system and the algorithm for calculating the heat flux between tissue and blood vessels. The first method was developed at the University of Utrecht between 1994 and 1998 and has been used in several clinical applications. The second method has been proposed by the first author. The methods are briefly described, their assumptions and limitations are discussed. Finally, the test simulation is introduced and the results produced by both methods are compared. The test indicates that the simpler, and less computationally intensive method proposed by the present author for calculating 2D problems containing countercurrent blood vessel systems can reproduce quite well some features of the solution obtained by the more complex 3D method. The observed discrepancies could be explained on physical grounds.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c907a3561366a8ea8724ea5c12648c9a https://doi.org/10.1088/0031-9155/52/9/004 Zobrazit plný text záznamu