Head MRI can understand whether there is any acute ischemic foci in the brain, such as cerebral infarction, or the characteristics of cerebral hemorrhage or cerebral infarction images have already occurred. At the same time, head vascular MRA can also be carried out, can understand the intracranial blood vessel alignment, and intracranial blood vessels have no stenosis, or there is no developmental deformity, to understand whether there is no cerebral blood supply insufficiency vascular lesions based on the combination of the patient’s symptoms, cranial scanning nuclear magnetic resonance imaging and vascular nuclear magnetic resonance imaging, it can be clear that there is a cerebral blood supply insufficiency. If the effect of head and vascular magnetic imaging is a little worse, it can be combined with intracranial vascular CT enhancement scan to clarify the intracranial vascular lesions.