基于血管解剖结构的前臂三维传热有限元模拟*★

于乔，乐恺，张欣欣

摘要:结合解剖数据与分形方法，构建了接近真实结构的前臂动脉血管树，建立起基于血管真实解剖结构的前臂三维传热模型。采用有限元方法对前臂三维传热模型进行了数值模拟，讨论了血管分布，血液灌注率，外加热源等因素对三维温度场的影响。结果显示温度场模拟结果与Pennes文献实测数据能较好地吻合，模型能较好体现由于血管树空间分布的不规则而造成的组织温度分布的局部差异，获得了较为接近真实的生物组织的整场温度分布，可以为肿瘤热疗提供温度指导。
关键词：生物传热；人体前臂；有限元模拟；血管树；三维温度场；医学工程学

于乔，乐恺，张欣欣.基于血管解剖结构的前臂三维传热有限元模拟[J].中国组织工程研究与临床康复，2008，12(22):4246-4248 [www.zglckf.com/zglckf/ejournal/upfiles/08-22/22k-4246(ps).pdf]

北京科技大学热能工程系，北京市 100083

于乔★，男，1981年生，河北省唐山市人，汉族，北京科技大学热能工程系在读硕士，主要从事生物传热及温度场计算方面研究。bridgefish@hotmail.
com

通讯作者：乐恺，博士，副教授，北京科技大学热能工程系，北京市 100083 yuekai@me.ustb.
edu.cn

国家自然科学基金资助项目（50546029）*

中图分类号: R318
文献标识码: B
文章编号: 1673-8225
(2008)22-04246-03

收稿日期：2007-10-07修回日期：2008-04-01
(07-50-10-5356/N·A)

Finite element simulation of 3D heat transfer in forearms based on anatomic structure of vessels

Abstract : Based on the anatomic data and fractal theory, the vascular tree model of forearms similar to actual vessel was established, and then the 3D heat transfer model of forearms based on the actual vessel anatomic structure was created. The model was analyzed and investigated with finite element method to explore the influential factors such as dimensional distribution of vessel, blood perfusion rate and external heat source for the 3D temperature field. The simulation results were consistent with the experimental data derived from Pennes. The model well reflects the regional difference of tissue temperature caused by the irregular distribution of vessel, and provides temperature guidance for tumor thermotherapy.

Yu Q, Yue K, Zhang XX.Finite element simulation of 3D heat transfer in forearms based on anatomic structure of vessels. Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu 2008;12(22):4246-4248(China)
[www.zglckf.com/zglckf/ejournal/upfiles/08-22/22k-4246(ps).pdf]

Department of Thermal Energy Engineering, University of Science and Technology Beijing, Beijing 100083, China

Yu Qiao★, Studying for master’s degree, Department of Thermal Energy Engineering, University of Science and Technology Beijing, Beijing 100083, China
bridgefish@hotmail.
com

Correspondence to: Yue Kai, Doctor, Associate professor, Department of Thermal Energy Engineering, University of Science and Technology Beijing, Beijing 100083, China
yuekai@me.ustb.
edu.cn

Supported by: the National Natural Science Foundation of China, No. 50546029*

Received:2007-10-07
Accepted:2008-04-01