Although both head MRI and cerebrovascular MRI are magnetic resonance examinations and both examine the head, the purpose and method of their examination are different. MRI of the head is mainly used for cerebral infarction, brain tumor, subacute stage of cerebral hemorrhage, multiple sclerosis, Parkinson’s disease, epilepsy, encephalitis, cerebral atrophy, congenital malformations of the skull and brain, multi-system atrophy, and other disorders of movement. By observing different signals, it is clear whether there are abnormalities in the intracranial structures and which lesions are present. T1 images, T2 images, Flair images, and enhanced MRI if necessary are usually required. In the case of cerebrovascular disease, diffusion and perfusion images are required. The MRI of cerebrovascular is also called magnetic resonance angiography, and it mainly examines the large intracranial vessels for stenosis, aneurysm, vascular malformation, and intracranial venous sinus thrombosis. If there are abnormalities in the examination, cerebral angiography may also be required to further clarify the diagnosis and develop the next step of treatment plan.