MRI for cranial examination can probably detect the following types of diseases: 1. various types of cranial tumors, such as gliomas, pituitary tumors, metastases, pineal tumors, etc.; 2. various types of brain inflammation, such as encephalitis, brain abscess, etc.; 3. various types of cerebrovascular diseases, such as cerebrovascular malformations, aneurysms, etc.; 4. various congenital brain dysplasia; 5. cerebral white matter degenerative diseases and cerebral 6. various types of cranial trauma, such as epidural hematoma, subdural hematoma, subarachnoid hemorrhage, etc.; 7. epilepsy, MRI can be performed to diagnose the cause of some patients with epilepsy, and some patients with epilepsy have normal cranial MRI.