计算机X射线摄影系统伪影成因分析

CR artifacts causes and countermeasures

目的:分析计算机X射线摄影(CR)系统在成像、扫描及传输过程中伪影产生的原因,探讨减少和消除伪影的方法和解决对策,以提高CR的照片质量。方法:收集103例CR伪影影像资料,通过图像上伪影的形态和特点分析伪影产生的原因。结果:通过对103幅有伪影的图像进行分析证实,在摄影、扫描及日常的维护保养等方面操作不当均可产生CR图像伪影,但多数伪影通过相应的处理后可以减少和消除。结论:影像技术人员和维修工程师需加强责任心,熟悉CR设备的工作原理,加强对CR设备的日常的维护,可有效避免和消除CR图像伪影。

Objective：Through to the CR in imaging, scanning and transmission process of artifact analysis, find out the causes of artifacts, and to explore methods and countermeasures to reduce and eliminate artifacts, improve the quality of CR picture. Methods：Collected between September 2009 and mid-February 2012 CR images of 103 cases with artifacts, through the analysis of the morphology and characteristics of image artifacts on the causes of artifacts. Results：from 103 have artifacts in the image analysis and proof, the photography, scanning and so on ordinary maintenance produces CR image artifacts, most of the artifacts, through the corresponding processing, most of them can reduce and eliminate. Conclusion：As long as technicians and maintenance engineers to strengthen the sense of responsibility, familiar with the working principle of CR equipment and strengthen the ordinary maintenance, CR image artifacts can be avoided and eliminated.