改装数字化X线机DR摄影及应用

目的：DR数字化分辨率高，它是采用平板探测器为传统X线带来了前所未有的高分辨率影像。方法：采用CANONDR系统，操作台简单，屏幕上各个投照部位显示清楚，对屏幕上显示图像可重新修改和删除，对不理想图像可做频率调整．如对屏幕上显示多幅图像可进行重新预览，窗宽、窗住重新调整和重新发送，屏幕上显示投照部位任意翻转和剪切，只要是大型进口X线机就可以改装，大大节约了经费。结果：DR照片质量大大优于胶片质量，由原来用胶片甲片率的78％提高到用DR数字化甲片率的99．5％，避免乙片率和废片率。结论：DR动态范围宽，摄影的宽容度大，无失败摄影，用DR诊断信息丰富。

DR of digital X-ray machine and its application

With the flat-plate detector, DR makes the X-ray machine have a high resolution. CANNON DR system is adopted, and thus the images on the screen can be amended and deleted, and frequency adjustment also can be performed on non-satisfying images. The multi-images on the screen can be re-previewed and the width and location of the window can be re-regulated and re-transmitted. The introduction of DR into any large imported X-ray machine increases the rate of level-I radiology from 78% to 99.5%. With less requirements, DR provides more clinical information.