What's the difference between CT, CR, DR, MR and X-ray?

Cr and DR are X-ray films, mainly plain films, which are suitable for trauma such as bones, and cannot be sectioned. CT can be sectioned, the scanning position is not limited, and the effect of tissue damage and calcification is obvious. MR images are limited, and patients with pacemakers and metal implants can do without MR images, so the soft tissue effect is better.