Brain MRI can generally check for cerebrovascular disease, brain inflammation, cranial tumors, congenital developmental malformations and other diseases. MRI of the brain can generally observe the location and size of the brainstem and the posterior cranial fossa, as well as changes in the parenchymal structures of the brain, such as the presence or absence of narrowing, occupancy, and edema. Its image clarity is high, and it can detect a wide range of lesions in the brain. For example, cerebrovascular diseases such as cerebral infarction, cerebral hemorrhage, cerebral arteriovenous malformation; brain inflammation such as brain abscess and encephalitis; cranial brain tumors such as glioblastoma, astrocytoma, ventricular meningioma, pineal tumor, and brain metastasis; and various brain diseases such as congenital cerebral hypoplasia, and cranio-cerebral congenital developmental deformities. Generally, the diagnosis can be confirmed through imaging examination combined with clinical symptoms, and patients should actively cooperate with doctors for treatment after diagnosis.