《计算机应用研究》|Application Research of Computers

磁声断层成像逆问题的研究进展

Progress of research on reverse problem of magnetoacoustic tomography imaging

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作者 孙正,陈鹏
机构 华北电力大学 电子与通信工程系,河北 保定 071003
统计 摘要被查看 次,已被下载
文章编号 1001-3695(2018)06-1601-05
DOI 10.3969/j.issn.1001-3695.2018.06.001
摘要 病变组织的早期发现对病症的诊断和治疗具有重要的临床意义。生物磁声断层(magnetoacoustic tomography,MAT)成像是一种新型的无损伤功能成像技术,它融合了电磁场、超声和多物理场探测与成像技术,同时具备电阻抗成像的高对比度以及超声扫描成像的高空间分辨率的优点。它基于生物组织电导率的变化特点,能够先于结构成像技术发现组织的早期病变情况。MAT的研究包括正问题和逆问题两方面。在简介MAT成像原理的基础上,对其逆问题的研究现状进行综述,对主要方法进行归纳总结,分析目前存在的问题和可能的解决方法,最后指出未来的研究趋势。
关键词 磁声断层成像;逆问题;电导率;图像重建
基金项目 国家自然科学基金资助项目(61372042)
中央高校基本科研业务费专项资金资助项目(2014ZD31)
本文URL http://www.arocmag.com/article/01-2018-06-001.html
英文标题 Progress of research on reverse problem of magnetoacoustic tomography imaging
作者英文名 Sun Zheng, Chen Peng
机构英文名 Dept.ofElectronic&CommunicationEngineering,NorthChinaElectricPowerUniversity,BaodingHebei071003,China
英文摘要 Early detection of pathological tissues is significant for the accurate diagnosis and effective treatment of diseases in clinic.Biological magnetoacoustic tomography (MAT), a newly emerged functional imaging modality, combines the electromagnetic, ultrasonic and multi-physics detection and imaging technology.It has the advantages of good contrast of electrical impe-dance tomography and high spatial resolution of ultrasonography.Based on the characteristics of biological conductivity, it can detect the early pathological changes of biological tissues before structure imaging modalities.The research on MAT included both positive and inverse problems.This paper reviewed current works on the inverse problem based on a brief introduction to the imaging principle.It explained the nature of the inversion and summarized the proposed methods as well as their limitations.Also, it discussed the remaining unsolved challenges.Finally, it also pointed out possible development in the future.
英文关键词 magnetoacoustic tomography(MAT); inverse problem; conductivity; image reconstruction
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收稿日期 2017/4/22
修回日期 2017/6/7
页码 1601-1605
中图分类号 TP391.4
文献标志码 A