| 柱面换能器声场在组织中的温度分布估计 |
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| 引用本文： | 霍彦明,陈亚珠. 柱面换能器声场在组织中的温度分布估计[J]. 中国生物医学工程学报, 2001, 20(5): 436-440 |
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| 作者姓名： | 霍彦明 陈亚珠 |
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| 作者单位： | 上海交通大学生物医学仪器研究所 |
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| 摘 要： | 本文分析了柱面聚焦换能器的声场特点，剖析了方向比（ratio）与声场的关系。结果表明：声场随方向比的降低而焦点强度减弱，声强最大值前移。在求解声场的基础上，对该类换能器的声场在组织中的温度分布进行估计，给出了组织内温度随时间变化的曲线，分析了方向比（ ratio）对焦区温度分布的影响，为该类换能器的参数选择和组织中的温度分布估计提供了参考。
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| 关 键 词： | 高强度聚焦超声 换能器 组织 温度 |
| 修稿时间： | 1998-11-23 |
TEMPERATURE ESTIMATING IN TISSUES OF RECTANGULAR APERTURE TRANSDUCER |
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| Huo Yanming,Chen Yazhu. TEMPERATURE ESTIMATING IN TISSUES OF RECTANGULAR APERTURE TRANSDUCER[J]. Chinese Journal of Biomedical Engineering, 2001, 20(5): 436-440 |
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| Authors: | Huo Yanming Chen Yazhu |
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| Abstract: | We analyzed the characteristic of cylindrical focused ultrasound transducer and the relation between direction ratio of transducer and its ultrasound field. It showed that the focus moved toward the transducer and its intensity reduced with the dropping of direction ratio. Based on the ultrasound field solution, temperature in tissues were estimated. Temperature elevation of some points were given in the figures. The influence of direction ratio to temperature distribution was discussed. It provided the reference in choosing the transducer parameters and estimating the temperature distribution in tissues. |
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| Keywords: | High intensity focused ultrasound Transducer Tissues Temperature |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
