| 遗传算法在256阵元相控阵高强度聚焦超声治疗系统多焦点控制中的应用 |
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| 引用本文： | 徐丰,万明习,陆明珠. 遗传算法在256阵元相控阵高强度聚焦超声治疗系统多焦点控制中的应用[J]. 生物医学工程学杂志, 2008, 25(5) |
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| 作者姓名： | 徐丰 万明习 陆明珠 |
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| 作者单位： | 西安交通大学,生物医学信息工程教育部重点实验室,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目(10674108) |
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| 摘 要： | 阐述了遗传算法优化多点超声聚焦的方法以及球面相控阵声场计算方法。对实验室研发的256阵元相控阵聚焦超声治疗系统作了简介。利用此遗传算法和声场计算方法，对轴上和离轴单焦点以及轴对称六焦点和非轴对称四焦点进行了256阵元相控阵的声场仿真，并观察了实验室研发的256阵元相控阵聚焦超声治疗系统作用于有机玻璃和透明仿体的实验结果。用遗传算法和声场计算方法的仿真和系统实验结果表明，此方法可在实际聚焦手术中准确地控制3维单焦点和3维多焦点。
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| 关 键 词： | 遗传算法 球面相控阵 聚焦超声手术 |
Genetic Algorithm Application to Multi-Focus Patterns of 256-Element Phased Array for Focused Ultrasound Surgery |
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| Xu Feng,Wan Mingxi,Lu Mingzhu. Genetic Algorithm Application to Multi-Focus Patterns of 256-Element Phased Array for Focused Ultrasound Surgery[J]. Journal of biomedical engineering, 2008, 25(5) |
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| Authors: | Xu Feng Wan Mingxi Lu Mingzhu |
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| Affiliation: | The Key Laboratory of Biomedical Information Engineering of Ministry of Education;Xi'an Jiaotong University;Xi'an 710049;China |
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| Abstract: | The genetic optimal algorithm and sound field calculation approach for the spherical-section phased array are presented in this paper. The in-house manufactured 256-element phased array focused ultrasound surgery system is briefly described. The on-axis single focus and off-axis single focus are simulated along with the axis-symmetric six-focus patter and the axis-asymmetric four-focus pattern using a 256-element phased array and the genetic optimal algorithm and sound field calculation approach. The experi... |
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