数字X线照片影像质量相关因素初步分析  

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

作　　者：卢铃铨[1] 冯敏[1] 王龙华[1] 吴前芝[1] 张太生[1] 张子齐[1] 闪荣[1] 张林[1] 

机构地区：[1]南京医科大学附属南京第一医院影像科,江苏南京210006

出　　处：《医学影像学杂志》2004年第9期748-750,共3页Journal of Medical Imaging

摘　　要：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。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.

关 键 词：质量控制 图像处理 计算机辅助 放射摄影术 

分 类 号：R814.42[医药卫生—影像医学与核医学] R814.3[医药卫生—放射医学]