Hansen K, Welde F
Acta Radiol Diagn (Stockh). 1977 Mar;18(2):257-63. doi: 10.1177/028418517701800217.
A method for comparing measurements of films and processing procedures is described. A stepped wedge is developed on basis of density measurements in defined areas of chest photofluorographic films. Quality criteria for films and processing procedures are established by systemization of film evaluation. Minor modifications of the method are necessary for application elsewhere in diagnostic radiology.
描述了一种比较胶片测量和处理程序的方法。基于胸部荧光摄影胶片特定区域的密度测量开发了一个阶梯楔形物。通过胶片评估的系统化建立胶片和处理程序的质量标准。该方法的微小修改对于在诊断放射学的其他地方应用是必要的。
