近几年，随着医学影像学的不断发展进步，使数字化摄

影系统cR和DR得到广泛的普及和应用。同传统的屏一胶

体系相比，计算机摄影无疑有着诸多的优点，同时其影像质

量也越来越引起广泛的关注，而伪影是影响DR影像质量的最大因素，只有分析伪影产生的各种因素，才能更好消除其影响，增加成像质量，提高诊断准确率。-In recent years, with the continuous development of medical imaging advances, making digital photography system cR and DR been widely popular and applications. A plastic screen with a traditional system compared to the computer photography will undoubtedly have many other advantages, while its image quality has become increasingly widespread concern, and artifacts that affect the biggest factor in DR image quality, only the analysis of artifacts of the of factors, in order to better eliminate the effects of increased image quality and improve diagnostic accuracy.