MRI can detect early physiological and biological changes in the body, which is its greatest advantage, so MRI is more sensitive to lesions and has a higher accuracy rate of detecting lesions. A well-trained physician can detect almost 100% of lesions with different techniques. Because of the complex theoretical basis of MRI signal generation, there are cases where different doctors have different understanding of the signal and come to slightly different conclusions, which is its disadvantage. MRI has been used in the medical field for a relatively short period of time, and it is necessary to strengthen the summation of clinical application experience to facilitate the improvement of diagnostic accuracy.