摘要
目的:探讨计算机X线摄影图像伪影表现、产生的原因及消除或减少的方法。方法:随机选取放射科号连续的CR图像1968幅,在GE Radworks工作站上进行影像质量评价。结果:在随机抽查样本中66幅图像存在伪影,CR图像伪影的产生与系统软硬件因素、灰尘因素、操作者因素等CR成像的各个环节有关。结论:熟悉CR伪影的表现及产生原因有助于减少和消除伪影,提高影像质量。
Objective To investigate the appearance, causes and countermeasures of the image artifacts in a computed radiographic system. Methods Random 1968 CR images were analyzed by GE Radworks. Results Among the 1,968 images which were choosed at random, 66 images with artifacts were found and processed. The artifacts in computed radiographic system are relevant to system software and hardware, dust as well as operators. Conclusion Familiarization with the appearance and causes of CR image artifacts helps to prevent or reduce artifacts.
出处
《医疗卫生装备》
CAS
2006年第5期51-52,共2页
Chinese Medical Equipment Journal
关键词
计算机X线摄影
伪影
系统
成像
computed X-ray radiography
artifacts
system
imaging
