Katragadda C S, Fogel S R, Cohen G, Wagner L K, Morgan C, Handel S F, Amtey S R, Lester R G
Radiology. 1979 Oct;133(1):83-7. doi: 10.1148/133.1.83.
A prototype computed radiography (CR) system was evaluated for its efficacy as an independent diagnostic modality. Preliminary measurements of high contrast resolution, low contrast perceptibility, and dose were obtained. Clinical examinations including skull, abdomen, liver, gallbladder, biliary system, spine, and extremities were performed as an adjunct to either computed tomography or CR. The data suggest that CR can be an effective diagnostic imaging modality by itself. Advantages over conventional radiography include high scatter rejection, low patient dose, wide dynamic range, and good low contrast sensitivity for large objects; disadvantages, its long exposure time and relatively poor high contrast spatial resolution.
对一种原型计算机X线摄影（CR）系统作为一种独立诊断方式的效能进行了评估。获得了高对比度分辨率、低对比度可察觉性和剂量的初步测量结果。作为计算机断层扫描或CR的辅助手段，进行了包括头颅、腹部、肝脏、胆囊、胆道系统、脊柱和四肢的临床检查。数据表明，CR自身可以成为一种有效的诊断成像方式。与传统X线摄影相比，其优点包括高散射消除能力、低患者剂量、宽动态范围以及对大物体良好的低对比度敏感性；缺点是其曝光时间长且高对比度空间分辨率相对较差。
