文章摘要
李大为.低场永磁MRI导引聚焦超声肿瘤消融系统的研究[J].声学技术,2014,33(4):326~330
低场永磁MRI导引聚焦超声肿瘤消融系统的研究
Low field permanent magnet MRI guided focused ultrasound system for tumor ablation
投稿时间:2014-04-04  修订日期:2014-07-08
DOI:10.3969/j.issn1000-3630.2014.04.008
中文关键词: 高强度聚焦超声(HIFU)  低场永磁  磁共振成像(MRI)
英文关键词: High Intensity Focused Ultrasound(HIFU)  low field permanent magnet  Magnetic Resonance Imaging (MRI)
基金项目:上海市科委科研基金资助项目(05DZ19508)、上海市科委科研基金资助项目(07DZ19506)
作者单位E-mail
李大为 上海爱申科技发展股份有限公司, 上海 201201 ldw@aishen.com.cn 
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中文摘要:
      研究了低场永磁磁共振(Magnetic Resonance Imaging,MRI)导引的高强度聚焦超声(High Intensity Focused Ultrasound,HIFU)系统,使两者融合为一体。把磁共振的磁体设计为U字形,这样HIFU治疗头就可以放置于磁共振开口的上方;同时,在磁兼容、磁共振的快速成像、磁共振的测温、相控阵换能器、HIFU的治疗计划等方面做了一些研究。研究结果表明,在低场永磁的磁共振导引下,可以实现系统的所有设计功能,系统定位的图像比上一代B超导引的HIFU清晰,提高了实用性。
英文摘要:
      This paper discusses a low field permanent magnet MRI guided HIFU system which made up the two systems of MRI and HIFU into a whole system. The MRI magnet was designed to U-shaped, so that HIFU treatment head could be placed above the opening of the MRI magnet. The magnetic compatibility, fast magnetic resonance imaging, temperature measurement by MRI, phased array transducers, HIFU treatment method etc are also discussed. The result shows that guided by low field permanent magnet MRI, the system could achieve all the designed functions. The advantages of the system are that the positioning image is much clearer than that of the ultrasound scanner of previous generation, and improves the practicability greatly.
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