What does brain function test examine?

There are many kinds of brain function examination items in clinical practice, such as enhanced CT, MRI, EEG, etc. Among them, CT and MRI can understand whether there is vascular malformation, stenosis, intracranial aneurysm, intracranial hemorrhage, infarction and infarction area and location. EEG is mainly used in clinical diagnosis of various epilepsy, as well as to clarify the type of partial epilepsy, but also for some encephalopathy, such as encephalitis, metabolic encephalopathy, amyloid encephalopathy, etc. In the examination of head CT and MRI, the installation of cardiac pacemakers, metal residues in the body, claustrophobia patients, life-threatening patients can not be examined.