Frija J, Zagdanski A M, De Kerviler E, Attal P, Laval-Jeantet M
Service de Radiologie, Hôpital Saint-Louis, Paris.
Ann Radiol (Paris). 1994;37(3):157-68.
Image digitalization can be performed in several ways: equalization of the x-ray beam (Scanning Equalization Radiography and Advanced Multiple-Beam Equalization Radiography), digital fluorography, use of linear computed tomography detectors, digitalization of radiographic films and memory screens. Phospholuminescent screens use an x-ray receptor which is able to store the x-ray energy. This latent energy is then extracted and can be processed to obtain images with matrices ranging between 1,760 x 2,140 and 1,770 x 2,370. Several types of image processing systems can be used depending on the pathology investigated. The blurred mask substraction method is the most widely used. The first clinical results demonstrate a reduction in patient irradiation and performances equal to or better than those of standard x-rays.
X射线束均衡（扫描均衡放射摄影和先进多束均衡放射摄影）、数字荧光摄影、使用线性计算机断层扫描探测器、放射胶片数字化和存储屏数字化。磷光屏使用能够存储X射线能量的X射线接收器。然后提取这种潜能量，并进行处理以获得矩阵范围在1760×2140至1770×2370之间的图像。根据所研究的病理情况，可以使用几种类型的图像处理系统。模糊掩模减法是应用最广泛的。首批临床结果表明，患者的辐射剂量降低，其性能与标准X射线相当或更好。
