| MR图像伪影的识别与消除 |
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| 引用本文： | 杜玉秀,康少峰.MR图像伪影的识别与消除[J].宁夏医学杂志,2004,26(1):27-28. |
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| 作者姓名： | 杜玉秀 康少峰 |
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| 作者单位： | 宁夏医学院附属医院,宁夏,银川,750004 |
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| 摘 要： | 目的 探讨MR图像伪影形成的原因、表现形式及消除方法。方法 对100份有伪影干扰的MR图像进行回颐性分析、总结。结果 MR图像伪影产生的来源主要有4个方面：磁场，包括梯度场的不均匀性；外界射频干扰；采集技术的不恰当；运动和流动效应。结论 正确识别各种伪影的图像特征，对提高MR诊断准确率有着重要意义。
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| 关 键 词： | MR成像 伪影 图像质量 |
| 文章编号： | 1001-5949(2004)01-0027-02 |
| 修稿时间： | 2003年6月18日 |
Distinguishing and eliminating of artifact in MR imagine |
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| DU Yu-xiu,KANG Shao-feng..Distinguishing and eliminating of artifact in MR imagine[J].Ningxia Medical Journal,2004,26(1):27-28. |
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| Authors: | DU Yu-xiu KANG Shao-feng |
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| Abstract: | Objective To explore the reasons characters and eliminating of artifact in MR imagine.Methods 100 copies of MR imagines,which affected by artifact were, retrospective by analyzed.Results The following four factors lead to artifact in MR imagine: heterogeneity of magnet field, including gradient field, interference of radiofrequency, inadequacy of collecting methods and floating or moving effect.Conclusion It's very essential for doctors distinguish the characters of artifact of MR imagine. |
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| Keywords: | MR imagine Artifact Quality of imagine |
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