What's the difference between DR and CT?

DR is a digital X-ray imaging, which is displayed differently on the negative according to the density of different organs of the human body. It is more suitable for bone trauma and lung diseases. Something's wrong upstairs. Sagittal plane is not a cross section, but CT shows a cross section. X-ray head circular scanning is more suitable for brain lesions and abdominal organ lesions. Price reference: DR chest radiograph 120 or so, other parts 60~80 or so, and CT price is between 200~400 yuan.