CR与DR性能影像特点及其临床应用的比较研究  

Comparative Study of Imaging Performance Characteristic and Clinical Application on Digital Imaging(CR and DR)

作　　者：甘泉[1] 刘冬明[1] 殷瑞根[2] 刘文[1] 赵天[1] 万志水 王骏[3] 王冬青[1] 彭卫斌[2] 

机构地区：[1]江苏大学附属医院,江苏镇江212001 [2]江苏大学医学院,江苏镇江212013 [3]南京军区南京总医院,南京210002

出　　处：《医疗卫生装备》2009年第2期90-91,共2页Chinese Medical Equipment Journal

基　　金：江苏省教育厅指导性课题(04KJD320046)

摘　　要：目的:评价CR与DR成像性能、影像特点及其临床应用并进行比较分析,为临床科学合理应用提供参考。方法:运用CR与DR数字成像基本原理、影像特点及其临床应用技术进行对比分析,评价成像性能、影像特点及其差别。结果:CR与DR成像转换方式各自不同,最终以数字方式输出、成像记录和储存,但CR和DR具有不同的特性及临床应用价值。结论:CR无需改变现有设备且费用较低、使用灵活,DR比CR具有更高空间分辨率、动态范围和DQE、SNR、MTF、更低X线照射量、更快速度,大大改善了工作流程,提高了工作效率,为临床提供更多的选择。Objective To comparatively analyze and evaluate the imaging performance, imaging characteristic and clinical application of CR and DR, and supply a reference for scientific and reasonable application. Methods The imaging performance and difference between with CR and DR are comparatively analyzed and evaluated by using principle of digital imaging, imaging characteristic and technology of clinical applications. Results CR and DR have different manners of imaging transition and exported, recorded and stored by digital signal finally, but they have different characteristic and clinical value. Conclusion By comparing CR with DR, the cost of application on CR is lower and its application is agiler; DR possesses higher spatial resolution, larger range of dynamic state, DQE, SNR, MTF, lower radiation dose, quicker imaging taking speed and improves working process, and raises working efficiency.

关 键 词：CR DR 成像原理 影像特点 临床应用 

分 类 号：TH774[机械工程—仪器科学与技术]