The former has more side effects compared to enhanced CT and enhanced MRI, which is determined by the difference in the imaging principles of the two. Enhanced CT has additional side effects on the human body due to the injection of contrast agents. MRI uses the magnetic spin imaging of the organism itself, and if it is not a strong magnetic field, the damage to the human body in a short period of time is smaller, and although the contrast agent used in enhanced MRI also has certain side effects, it is lighter, so enhanced MRI is safer. However, the scope of application of the two is different, and they have their own indications and contraindications, so they cannot replace each other, and the specific use of which one depends on the actual condition of the patient.