DR examination is an acronym for digital radiography, which is one of the commonly used X-ray examination equipment in large general hospitals today. The image is captured through a unique digital image capture board, which directly transforms the data to be transmitted to the network to display the image. Because the X-rays it takes are richer in information, they can be post-processed according to the clinical reality, which requires a variety of images. Compared to traditional X-ray examination, its improved spatial resolution helps to better detect lesions and make diagnosis. The examination speeds up the circulation of patients and also improves labor efficiency.