| 聚焦超声源对生物媒质加热的理论研究 |
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| 引用本文： | 钱盛友,王鸿樟.聚焦超声源对生物媒质加热的理论研究[J].物理学报,2001,50(3):501-506. |
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| 作者姓名： | 钱盛友 王鸿樟 |
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| 作者单位： | (1)湖南师范大学理学院,长沙410081; (2)上海交通大学生物医学工程系,上海200030 |
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| 基金项目： | 国家自然科学基金(批准号:39670216);湖南省教育委员会基金(批准号:22990505)资助的课题. |
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| 摘 要： | 用差分法求解生物热传导方程,研究了凹球面聚焦超声换能器用于热疗时在人体组织内产生的稳态温度场.引入热焦距及等温线,分析了换能器参数、生物组织特性参数对有效治疗区的影响,并对声场和温度场特征进行了比较
关键词：
聚焦超声
热疗
生物组织
温度场
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| 关 键 词： | 聚焦超声 热疗 生物组织 温度场 |
| 文章编号： | 1000-3290-2001-50(03)-0501-06 |
| 收稿时间： | 2000-03-10 |
| 修稿时间： | 2000年3月10日 |
THEORETICAL STUDY OF THE THERMAL EFFECT IN BIOLOGICAL MEDIUM GENERATED BY FOCUSED ULTRASOUND SOURCE |
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| QIAN Sheng-you,WANG Hong-zhang.THEORETICAL STUDY OF THE THERMAL EFFECT IN BIOLOGICAL MEDIUM GENERATED BY FOCUSED ULTRASOUND SOURCE[J].Acta Physica Sinica,2001,50(3):501-506. |
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| Authors: | QIAN Sheng-you WANG Hong-zhang |
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| Abstract: | The steady state temperature field in human body generated by concave spherical surface focused ultrasound transducer for hyperthermia has been studied through solving bioheat conduction equation by the difference method in this paper.The influence of parameters of the transducer and biological tissue properties on the effective treated area has been analyzed through introducing the heat focal distance and isotherms, and characteristics of the sound field and temperature field are studied thoroughly. |
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| Keywords: | focused ultrasound hyperthermia biological tissue temperature field |
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