针对金属伪影，提出一种快速而稳定的校正方法。
In this paper, a fast method for metal artifacts reduction is proposed.
金属伪影的校正已成为CT技术中的研究难点和热点。
Correction method of metal artifacts has become the hot and difficult issue of ct technique.
射线CT系统的成像质量往往受到金属伪影的严重影响。
X-ray computed tomography (CT) reconstructions are often limited by metal artifacts from corrupted data.
实验表明，这种新方法能极大程度地消除金属伪影，并能显著提高图象的对比度。
Experiments show that by our method, the streaks caused by the metallic implants can be greatly suppressed and the contrast can be significantly improved.
为抑制计算机层析造影（CT）系统重建图像中出现的金属伪影，提高图像的质量，采用一种基于金属投影非线性权重衰减的方法进行校正。
A metal artifacts reduction method using nonlinear weights was developed to suppress metal artifacts in X-ray CT(computerized tomography) images to improve the image quality.
铸造冠周围组织的影像在T1、T2、PD、GRE畸变为近似圆形的低信号金属伪影，在GEEPI畸变为大范围的不规则的片状信号失落；
Metal artifact around the crown was found on all images with different size and shape. In the T1, T2, PD, GRE images, the artifacts were circular. While in the GE EPI images which were patch-shaped.
目的对比钴铬合金、低钛合金及镍铬合金3种贱金属合金铸造冠，在3.0T及1.5 T磁共振成像检查时，产生金属伪影的最大面积及伪影涉及的扫描层数。
Objective To investigate the influence of three dental alloys casting crowns on the artifacts of MRI imaging during the examination of 3.0T MRI and 1.5T MRI.
通过合理选择金属材料，合理选择成像序列和参数可以减轻伪影。
Artifacts can be alleviated by using proper metallic materials or choosing proper imaging sequence and parameters.
本文就口腔金属修复物与磁共振伪影相互关系的研究进展作一综述。
In this paper, the research progress of the relationship between dental metallic prosthesis and MRI artifact is summarized.
本文就口腔金属修复物与磁共振伪影相互关系的研究进展作一综述。
In this paper, the research progress of the relationship between dental metallic prosthesis and MRI artifact is summarized.
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