DR图像质量控制方法研究

Image quality control of digital radiography

目的:探讨DR图像质控的方法。方法:根据日常工作评片统计对200张非甲级片进行原因分析,对各种机器型号产生图像的原理,图像的质量,以及技术方法进行研究总结。结果:影响DR图像质量的因素包括:①摄片技术参数;②X线机器工作性能;③量子噪声;④图像后处理技术;⑤激光相机。结论:影响DR图像质量因素大多是人为的,严格按照X线摄影技术的要求进行DR图像质量控制可获得优质片。

Objective：To discuss the method of quality control in DR picture. Methods：According to statistics of the daily work of commentary on the film 200 to carry out the reasons for 200 non-first grade slices analysis, models of various machines produce images of theory, image quality, as well as technical methods of study and sum up. Results： The main factor which influences the DR quality include：（~）X-ray film technology parameters;（~ X-ray machine job performance; （~）quantum noise; （~）image post-processing technology; （~） laser camera. Conclusion：The main factors which influence the image quality are mostly artificial. To work in strict accordance with the requirement of X-ray camera technique is the valid way to raise the image quality.