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目的:探讨CR在床旁胸部摄影中的应用所出现的技术问题,提高床旁X线摄影的影像质量。方法:选取CR摄影和普通X线床旁摄影胶片各100例,对影像的密度、对比度、清晰度(锐利度)进行比较分析。结果:85%经处理的CR床旁摄影影像的密度和对比度优于普通影像,但仍有30%的的CR床旁摄影影像的清晰度不如普通片。结论:主要因为操作者技术水平和患者难以配合而造成的移动模糊。提出CR床旁摄片同样要选择合适曝光条件,降低曝光时间,准确把握曝光时间,努力使患者配合摄片,只有这样,才能提供清晰的床旁片。
Objective: To explore the technical problems of CR in the application of bedside chest radiography and to improve the image quality of bedside radiography. Methods: A total of 100 CR radiographs and plain radiographic films were selected to compare the density, contrast, sharpness (sharpness) of the images. RESULTS: The density and contrast of the 85% treated CR bedside images was superior to that of normal images, but 30% of the CR bedside images were still less sharp than normal ones. Conclusion: Blurred motion mainly due to operator’s skill level and patient’s inability to co-ordinate. Proposed CR bedside radiography also need to select the appropriate exposure conditions, reduce exposure time, accurate exposure time, and strive to make patients with radiography, the only way to provide a clear bedside film.