Comput. Biol. Med. - Computational study of thermal effects of large blood vessels in human knee joint.


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This paper is dedicated to present a comprehensive investigation on the thermal effects of large blood vessels of human knee joint during topical cooling and fomentation treatment. A three-dimensional (3D) finite element analysis by taking full use of the anatomical CAD model of human knee joint was developed to accurately simulate the treatment process. Based on the classical Pennes bio-heat transfer equation, the time evolution of knee joint's temperature distribution and heat flux from large blood vessels was obtained. In addition, we compared several influencing factors and obtained some key conclusions which cannot be easily acquired through clinical experiments. The results indicated that the thermal effects of large blood vessels could remarkably affect the temperature distribution of knee joint during treatment process. Fluctuations of blood flow velocity and metabolic heat production rate affect little on the thermal effects of large blood vessels. Changing the temperature of blood and regimes of treatment could effectively regulate this phenomenon, which is important for many physiological activities. These results provide a guideline to the basic and applied research for the thermally significant large blood vessels in the knee organism.

Resumo Limpo

paper dedic present comprehens investig thermal effect larg blood vessel human knee joint topic cool foment treatment threedimension d finit element analysi take full use anatom cad model human knee joint develop accur simul treatment process base classic penn bioheat transfer equat time evolut knee joint temperatur distribut heat flux larg blood vessel obtain addit compar sever influenc factor obtain key conclus easili acquir clinic experi result indic thermal effect larg blood vessel remark affect temperatur distribut knee joint treatment process fluctuat blood flow veloc metabol heat product rate affect littl thermal effect larg blood vessel chang temperatur blood regim treatment effect regul phenomenon import mani physiolog activ result provid guidelin basic appli research thermal signific larg blood vessel knee organ

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