基于混合生物热传导模型的Pennes方程的改进  

Improvement of the Pennes equation based on the mixed bio-heat transfer model

作　　者：马吉明[1] 张向梅[1] 苏日建[1] 赵进超[1] 郭盛楠[1] 

机构地区：[1]郑州轻工业学院计算机与通信工程学院,河南郑州450001

出　　处：《郑州轻工业学院学报（自然科学版）》2015年第2期16-21,共6页Journal of Zhengzhou University of Light Industry:Natural Science

摘　　要：在血管树模拟研究的基础上,运用混合生物热传导模型并采用考虑血管和组织间局部传热的血液灌注率,改进了传统的Pennes生物传热方程.运用COMSOL Multiphysics对其进行仿真,并对改进前后Pennes方程求解结果进行比较,结果表明,改进后的Pennes方程能够显示出血管树对组织区域温度分布的局部影响,而传统Pennes方程则只表述了组织中温度分布的均匀形式.Based on the studies of the vascular tree’s simulation and combined with the mixed bio-heat transfer model,the traditional Pennes bio-heat transfer equation was improved by using the blood perfusion considering the local heat transfer between the blood and the tissue. COMSOL Multiphysics was used to simulate,and the results of Pennes equation improved before and after were compared. The results showed that the improved Pennes equation could reflect the local influence of the vascular tree on organization’s regional temperature distribution,while the traditional Pennes equation only described the homogeneous form of tissue temperature distribution.

关 键 词：Pennes 方程 血管树 混合生物热传导模型 

分 类 号：R318[医药卫生—生物医学工程]