Journal ArticleDOI
The Energy Conservation Equation for Living Tissue
TLDR
In this paper, it was shown that the description of thermal convection by blood is inconsistent in this equation, and that results are in error by the same order of magnitude as the convective energy transport itself.Abstract:
The widely used bio-heat transfer equation is examined regarding its term describing the thermal effects of blood perfusion. It is demonstrated, both by physical arguments and numerical results, that the description of thermal convection by blood is inconsistent in this equation, and that results are in error by the same order of magnitude as the convective energy transport itself.read more
Citations
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Journal ArticleDOI
Microvascular contributions in tissue heat transfer.
TL;DR: It will be shown that because of the vasculature, and the large rate of blood perfusion, living biological tissues are fundamentally different from inert materials, Consequently, the familiar thermal properties can no longer be assumed to be independent of the parameters of the temperature field.
Journal ArticleDOI
Recent developments in modeling heat transfer in blood perfused tissues
H. Arkin,Lisa X. Xu,K.R. Holmes +2 more
TL;DR: The present review compares and contrasts several of the new bio-heat transfer models, emphasizing the problematics of their experimental validation, in the absence of measuring equipment capable of reliable evaluation of tissue properties and their variations that occur in the spatial scale of blood vessels with diameters less than about 0.2 mm.
Journal ArticleDOI
A general bioheat transfer model based on the theory of porous media
Akira Nakayama,Fujio Kuwahara +1 more
TL;DR: In this article, a closed set of macroscopic governing equations for both velocity and temperature fields in intra-and extra-vascular phases has been established, for the first time, using the theory of anisotropic porous media.
Book ChapterDOI
Mathematical Models of Bioheat Transfer
TL;DR: The characteristics of the original Pennes theory are still being used today in bioheat transfer research, along with the current understanding and future prospects for advances in bio heat transfer via a bioheatTransfer equation are discussed.
OtherDOI
Thermal Indices and Thermophysiological Modeling for Heat Stress
George Havenith,Dusan Fiala +1 more
TL;DR: The most commonly used indices and models are discussed and how these are deployed in the different contexts of industrial, military, and biometeorological applications are looked at, with focus on use to predict related thermal sensations, acute risk of heat illness, and epidemiological analysis of morbidity and mortality.
References
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Journal ArticleDOI
Analysis of Tissue and Arterial Blood Temperatures in the Resting Human Forearm
Journal ArticleDOI
Nodal Network Simulation of Transient Temperature Fields from Cooling Sources in Anesthetized Brain
George J. Trezek,Don L. Jewett +1 more
TL;DR: Transient thermal gradients in the brains of anesthetized cats and rabbits due to localized cooling to 5°C with probes of two different shapes were modeled successfully by a computer program utilizing a finite difference method and thermal coefficients of water, without addition of a term for metabolic heat or blood flow.
Proceedings ArticleDOI
Analytical modeling of the thermal behavior of living human tissue
Avraham Shitzer,John C. Chato +1 more
TL;DR: In this article, living human tissue thermal behavior analytical modeling including internal heat generation and blood flow effects is presented, including internal and external heat generation, and the effects of blood flow.
Related Papers (5)
A New Simplified Bioheat Equation for the Effect of Blood Flow on Local Average Tissue Temperature
Sheldon Weinbaum,Latif M. Jiji +1 more