Chest ortho DR is chest ortho DR, or chest posterior anterior DR, which refers to the X-rays shining from your back and then imaged on the detector in front of you, capable of observing the lungs, heart, pleural cavity and so on, and it is the most common and basic examination in radiology. Nowadays, many hospitals have replaced chest fluoroscopy with chest orthopedic DR. Nowadays, children’s medical checkup program has canceled the fluoroscopy program, and now this DR is used to replace the fluoroscopy examination.