| 磁共振成像中抑制伪影技术的研究进展 |
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| 引用本文： | 陈春晓,陶华,王世杰,罗立民.磁共振成像中抑制伪影技术的研究进展[J].生物医学工程学杂志,2007,24(2):457-459. |
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| 作者姓名： | 陈春晓 陶华 王世杰 罗立民 |
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| 作者单位： | 1. 南京航空航天大学,生物医学工程系,南京,210016;东南大学生物医学工程系,南京,210096
2. 东南大学生物医学工程系,南京,210096 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 磁共振成像可对人体各部位多角度、多平面成像,具有高组织分辨力、空间分辨力、无硬性伪迹及无放射损伤等优点,在医学上得到了广泛的应用。然而,磁共振成像中所产生的伪影会严重影响MRI的质量及对病灶的精确定位。我们主要介绍了近年来抑制自旋回波平面成像技术中所产生的伪影及自主性运动伪影的研究进展。大量研究表明,怎样快速有效地抑制各种原因产生的伪影,仍然是研究人员所面临的一个非常棘手的问题。因此,还需不断寻求新的方法及思路来解决这一难题。
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| 关 键 词： | 磁共振成像 伪影 回波平面成像 |
| 修稿时间： | 2004-10-282005-03-31 |
Progress of Studies for Reduction of Ghost Artifact in Magnetic Resonance Imaging |
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| Chen Chunxiao,Tao Hua,Wang Shijie,Luo Liming.Progress of Studies for Reduction of Ghost Artifact in Magnetic Resonance Imaging[J].Journal of Biomedical Engineering,2007,24(2):457-459. |
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| Authors: | Chen Chunxiao Tao Hua Wang Shijie Luo Liming |
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| Institution: | 1.Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016,China; 2.Department of Biomedical Engineering, Southeast University, Nanjing 210006,China |
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| Abstract: | The popularity of magnetic resonance imaging over other imaging disciplines depends predominantly on its high spatial resolution . soft tissue contrast, no hard fake trace and no radiation injury. However,the ghost artifacts produced during a magnetic resonance imaging would degrade the image badly and affect the precise orientation to focus. This paper introduced the process of studies for reduction of ghost artifact resulting from EPI imaging theory and motion of subject. A lot of researches indicated that how to reduce the ghost effectively is still a challenging task. Researchers should persist in seeking for new method to solve the difficult problem. |
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| Keywords: | Magnetic resonance imaging(MRI) Ghost Echo planar imaging(EPI) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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