数字X线照片影像质量相关因素初步分析

目的：探讨影响数字X线照片影像质量的相关因素，提高数字X线照片影像质量。方法：通过分析计算机X线摄影(CR)与直接数字X线摄影(DR)所产生的数字X线照片影像质量相关因素：曝光量与自动曝光控制(AEC)的使用；DR、CR主机(扫描仪)及图像读取工作站；影像板(IP)因素；图像后处理工作站功能；激光打印机等。针对数字X线照片成像的各个环节加以控制。结果：获得优质数字X线照片影像必需做到：选择合适的曝光条件并合理使用AEC；掌握DR主机、CR扫描仪及图像读取工作站的性能特点；保证IP质量及定期清洗保养IP；充分了解并利用好图像后处理工作站的功能；正确设置配套激光打印机参数。结论：了解影响数字X线照片影像影像质量的相关因素，充分发挥数字X线照片影像图像的后处理优势，可以明显提高数字X线照片影像图像的质控水平。

Digital X-ray film quality:the initial study of the related factors

Objective:To investigate the related factor that impact the quality of digital X-ray plain film,and improve the quality.Methods:To analyze the related factor that impact the quality of digital X-ray plain film in the computed radiography(CR)and direct digital radiography(DR),such as: the exposure doses and usage of automatic exposure control(AEC); the mainframe of CR or DR and its image-taking workstations;imaging plate(IP);the function of the image processing workstations;laser printer,etc.Results:To acquire the fine quality digital X-ray plain film,it is essential to choose the fit exposed doses, use AEC reasonably, understand the characteristics of the mainframe of CR or DR and its image-taking workstations, guarantee the quality of IP,maintain the IP regularly,understand and make full use of the image processing workstations,set the parameters of the laser printer correctly.Conclusion:To know the related factor that impact the quality of digital X-ray plain film,take the full advantage of the image processing function,it could be further promoted the level of quality control of digital X-ray plain film.