中国美容医学2013，Vol.22Issue(2)：296-298,3.
三种金属修复体磁共振成像伪影范围的研究
Investigate of the artifact range of three kinds of metal denture
摘要
Abstract
Objective To investigate the artifact size of three kinds of alloy single maxillary fixed denture on the MRI images. Methods The maxillary dentition model of a healthy volunteer's was prepared,Then,produced three sets of the 7-7 full crowns of the same size and shape with Ni-Cr alloy,Co -Cr alloy and titanium alloy on the model.The crowns were divided into three groups according to the different materials.Examined the volunteer's head and neck with Philips 1.5T MRI directly as a control group,and then the volunteer weared the three sets of the denture respectively, repeating the above examination as the experiment group,compared The experimental group with the control group.To observe the artifact size and influence range,and measure the length, width and height affecting the imaging,and the single factor analysis of variance was used to analyzed the data. Results Artifacts were formed in all the dentures and the shape of the artifact is similar to the denture's.A certain of the influence was observed in the adjacent tissue,but the scope of which was limited, not affecting the imaging of the brain and cervical spine. Conclusion The artifact of the titanium alloy is the most minimum and the artifacts of the denture all have no effect on the the observation.of the brain and other important parts.关键词
金属义齿/磁共振成像/伪影Key words
metal denture/magnetic resonance imaging/artifact分类
医药卫生引用本文复制引用
冯全胜,李天侠,李欣,付旷..三种金属修复体磁共振成像伪影范围的研究[J].中国美容医学,2013,22(2):296-298,3.
