Cervi P M, Bighi S, Merlo L, Lupi L, Vita G
Servizio di Radiologia Ospedaliera, Arcispedale S. Anna, Ferrara.
Radiol Med. 1990 Apr;79(4):354-9.
A computed radiographic system for generating and archiving digital radiographic images was employed in ivp. The system produces 2 digital images per exposure: the first one simulates a conventional radiograph, while the second enhances some spatial frequencies and emphasizes the structure borders. The conventional radiographs and the digital images of 50 patients submitted to ivp were reviewed by four experienced radiologists to evaluate their comparative quality, and the results were statistically analyzed. Digital images proved to be better than conventional radiographs for some of the selected parameters, especially in the evaluation of renal edges and sometimes for calyceal opacification. As for the other parameters, no statistically significant difference was observed between conventional radiographs and digital images.
在静脉肾盂造影（IVP）中使用了一种用于生成和存档数字射线图像的计算机射线摄影系统。该系统每次曝光产生2幅数字图像：第一幅模拟传统射线照片，而第二幅增强了一些空间频率并突出了结构边界。四位经验丰富的放射科医生对50例接受IVP检查患者的传统射线照片和数字图像进行了评估，以比较它们的质量，并对结果进行了统计分析。对于某些选定参数，数字图像被证明优于传统射线照片，特别是在评估肾边缘时，有时在评估肾盏显影方面也是如此。至于其他参数，传统射线照片和数字图像之间未观察到统计学上的显著差异。
