影响DR图像质量的关键因素分析  

Analysis of the key factors affecting the quality of DR image

作　　者：李金霞[1] 续大为 

机构地区：[1]西安医学院,陕西西安710000 [2]陕西省肿瘤医院,陕西西安710000

出　　处：《电子设计工程》2015年第12期113-115,共3页Electronic Design Engineering

摘　　要：为了给医生提供层次丰富高分辨率的图像,从而为临床诊断提供准确依据。研究了影响图像质量的关键因素及其与图像质量的关系,并对此因素加以合理利用以便充分发挥DR的性能,从DR的系统构成即硬件和软件以及摄影参数方面分别进行全面分析。硬件方面X线管焦点的大小及管内真空度会影响图像质量、不同类型探测器的结构与工作原理决定图像的分辨率;软件方面主要考虑图像处理对图像质量的影响;摄影参数KV,m A,S的合理选择与患者的辐射剂量与图像质量密切相关。分析结果显示X线管、探测器及摄影过程中参数的调节是影像DR图像质量的关键因素。in order to give full play to the clinical performance of the DR, Provide doctors with rich layers of images.Study the key factors influencing the image quality and its relationship with image quality, and reasonable use this factor From the DR system constitute the hardware and software aspects and photographic parameters were analyzed respectively.Hardware the size of the X-ray tube focal point and tube vacuum will affect the image quality, the structure and working principle of different types of detector determines the resolution of the images; Software mainly consider the effect of image processing to image quality;KV , mA, S reasonable choice is closely related to the patients radiation dose and image quality.The analysis of the results showed：X-ray tube, detector and photographic parameters are key factors affecting the quality of DR image.

关 键 词：DR 图像质量 X线管 探测器 摄影参数 

分 类 号：TN911[电子电信—通信与信息系统]