| 射频消融治疗房颤的热损伤有限元分析 |
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| 引用本文： | 冯洁,白景峰,陈亚珠.射频消融治疗房颤的热损伤有限元分析[J].中国医学物理学杂志,2007,24(3):193-196. |
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| 作者姓名： | 冯洁 白景峰 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,上海,200240 |
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| 摘 要： | 目的:本文探讨分析了心肌组织加热温度随时间、电压变化,温度横向、纵向变化,以及热损伤区域随电压不同而变化的情况。方法:利用射频消融治疗房颤手术过程中电热场耦合效应形成的温升变化及消融区域的物理模型仿真得到结果。结果:仿真结果表明使用射频电流进行迅速加热可以使能量集中在目标治疗区域内,11s左右达到预先设定的治疗要求。并对实际应用时可能出现的情况进行了探讨。结论:仿真结果表明该仪器符合临床要求。
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| 关 键 词： | 射频消融 房颤 有限元分析 |
| 文章编号： | 1005-202X（2007）03-0193-04 |
| 收稿时间： | 2006-05-07 |
| 修稿时间： | 2006年5月7日 |
Finite Element Analysis of Heat Lesions for Radio Frequency Atria Fibrillation Ablation |
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| FENG Jie,BAI Jing-feng,CHEN Ya-zhu.Finite Element Analysis of Heat Lesions for Radio Frequency Atria Fibrillation Ablation[J].Chinese Journal of Medical Physics,2007,24(3):193-196. |
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| Authors: | FENG Jie BAI Jing-feng CHEN Ya-zhu |
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| Affiliation: | Biomedical Instrument Institute of Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | Objective: This paper analyzes the change of temperature and ablation area along time or voltage. Methods: Finite element analysis has been utilized to analyze the change of cardiac tissue caused by electrical-thermal coupled field during radio frequency (RF) atria fibrillation (AF) ablation. Results: It can reach therapy demand in 11s, and the highest temperature is appeared on the ends of electrode which can eacily result in hot spots. Conclusions: Simulation results show that the domain of thermal lesion can effectively cover the desired therapeutic region. And it accords with the clinic requirement. |
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| Keywords: | radio frequency ablation (RF) atria fibrillation (AF) finite element analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
