CT and MRI are two completely different examination methods, the difference mainly has the following points: 1, the examination principle of the two is different, CT utilizes radiation to tomography on the human body, while MRI utilizes an applied magnetic field to scan the human body in all sections. 2, the indications of the two are different, CT has a higher resolution of density, so it is more suitable for the head, chest, abdomen, and skeletal system, while the MRI has a higher resolution of soft tissue, so it is more suitable for the abdomen, breast, nerves, blood vessels and other soft tissue system diseases. 3, CT uses radiation to scan the human body, so there is a radiation effect on the human body, while the MRI utilizes an applied magnetic field, which does not have any radiation on the human body. 4, the price of the two is different, the CT is relatively cheaper. 5, CT has a higher resolution of density, so it is more suitable for the head, chest, abdomen, and skeletal system. 6, CT has a higher resolution of density, so it is more suitable for the head, chest, abdomen, and skeletal system. The price of CT is relatively cheaper.