Stephenson T F, Lincoln A J, Mehnert P J, Paul G J
J Comput Assist Tomogr. 1984 Dec;8(6):1161-3. doi: 10.1097/00004728-198412000-00023.
Because of a potential film cost savings of approximately 35% using photographic print paper instead of X-ray film in recording CT images, a comparison was undertaken of these hard copy recording methods. One hundred consecutive CT examinations were reviewed on the scanner display console and recorded on X-ray film and photographic print paper using a multi-imager camera. Hard copy images were compared for diagnostic adequacy. X-ray film adequately recorded the pathology in all cases. Photographic paper adequately recorded the pathology in 97% of cases. In 26% of cases X-ray film was felt to better display the CT diagnosis whereas in 2% of cases photographic paper better displayed the CT diagnosis. Test phantom scans recorded on both media showed no observable difference in spatial or contrast resolution.
由于在记录CT图像时使用照相打印纸而非X射线胶片可能节省约35%的胶片成本，因此对这些硬拷贝记录方法进行了比较。在扫描仪显示屏上回顾了连续100例CT检查，并使用多成像相机记录在X射线胶片和照相打印纸上。比较硬拷贝图像的诊断充分性。X射线胶片在所有病例中都能充分记录病变情况。照相纸在97%的病例中能充分记录病变情况。在26%的病例中，X射线胶片被认为能更好地显示CT诊断结果，而在2%的病例中，照相纸能更好地显示CT诊断结果。在两种介质上记录的测试体模扫描在空间或对比度分辨率上没有观察到差异。
