| 磁共振检查的运动、运动伪影与PROPELLER技术 |
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| 引用本文： | 毛青,周堃,王培军,包尚联. 磁共振检查的运动、运动伪影与PROPELLER技术[J]. 中国医学影像技术, 2008, 24(Z1): 231-234 |
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| 作者姓名： | 毛青 周堃 王培军 包尚联 |
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| 作者单位： | 同济大学同济医院放射科 北京大学医学物理和工程北京市重点实验室 |
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| 基金项目： | 国家自然科学基金(10527003)。 |
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| 摘 要： | MR临床检查中受检对象运动时常发生,运动类型种类繁多且关系复杂,运动造成的各种图像伪影直接影响影像资料的质量和医生阅片的效果,给影像学诊断和研究工作带来各种干扰。所以,正确区分MR检查的运动类型,认识伪影产生的基本原理有利于影像工作者正确识别MR图像中的各种伪影,提高临床和科研质量。本文对MR检查过程中运动伪影的分类、伪影的产生做一阐述,并介绍了一种新的伪影消除技术PROPELLER技术。
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| 关 键 词： | 运动 伪影 磁共振成像 |
| 收稿时间： | 2008-02-13 |
| 修稿时间： | 2008-07-30 |
Motion, motion artifacts and PROPELLER in MRI |
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| MAO Qing,ZHOU Kun,WANG Pei-jun and BAO Shang-lian. Motion, motion artifacts and PROPELLER in MRI[J]. Chinese Journal of Medical Imaging Technology, 2008, 24(Z1): 231-234 |
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| Authors: | MAO Qing ZHOU Kun WANG Pei-jun BAO Shang-lian |
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| Affiliation: | Department of Radiology, Tongji Hospital Affiliated of Tongji University, Shanghai 200065, China;Beijing City Key Laboratory of Medical Physics & Engineering, Peking University, Beijing 100871, China;Department of Radiology, Tongji Hospital Affiliated of Tongji University, Shanghai 200065, China;Beijing City Key Laboratory of Medical Physics & Engineering, Peking University, Beijing 100871, China |
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| Abstract: | Motion always happens in MR examination. The types of motion are various and their relationship is complicated. Image artifacts mainly caused by those motion and they could deteriorate the MR images and take disadvantages to clinical film diagnosis. Therefore, recognizing different kinds of motion and learning the origin of motion artifacts can help the radiology doctors to deal with the image artifacts correctly and have advantage to the clinical work and research. This paper summarizes the category and origin of artifacts in MRI scan procession. PROPELLER as a new technique used to deal with motion artifacts is introduced in this article. |
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| Keywords: | Motion Artifacts Magnetic resonomce imaging |
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