Same. C-arm X-ray machine in operating room, also known as C-arm X-ray machine, refers to an X-ray photographic equipment with a C-frame, which is used for real-time dynamic imaging in surgery. The x-ray of a large C-arm machine is the same as that of a C-arm machine. C-arm machine refers to X-ray photographic equipment with C-frame, which is used for real-time dynamic imaging during surgery. It has the advantages of low radiation dose, low infection risk, small floor space and easy movement.