For breast MRI, its advantages are as follows: 1) it is more sensitive to malignant tumors, and the time dose curve enables doctors to make early judgments on malignant breast lesions; 2) it is more sensitive to soft tissue imaging than mammography and ultrasound, and has a better effect on soft tissue lesions in the breast; 3) it can perform three-dimensional reconstruction, and based on the results of mammography, it can be used for computerized three-dimensional reconstruction, which is useful for pre-surgical lesion prediction and surgery related to breast reconstruction; 4) it does not require compression of the breast during the examination, unlike mammography, which causes some pain to the patient. It is possible to perform three-dimensional reconstruction based on the results of the mammogram, which is useful for the prediction of lesions before surgery and for surgery related to breast reconstruction; 4. Of course, there are some disadvantages of MRI, mainly: 1) if the patient has magnetic material installed in the body, it is not suitable for MRI; 2) if the patient is allergic to the contrast agent, it is not suitable for MRI; 3) if the patient has claustrophobia, it is not suitable for MRI because the space for MRI is small and can easily cause panic; 4) if the patient cannot lie down; 5) the cost of MRI is relatively expensive. The cost of MRI is relatively expensive for mammography.