Check for cerebral insufficiency. What's the main check?

Cerebral insufficiency patients, mainly check neck vascular ultrasound, to determine whether there is neck vascular stenosis, whether there is plaque formation. Check ECG, cardiac ultrasound to determine whether there is arrhythmia and heart valve disease, heart failure. Should check blood lipids, blood sugar and blood pressure, if necessary, check the brain MRI plus vascular imaging, to determine whether there is cerebral ischemia, whether there is cerebral vascular stenosis, the degree of stenosis, whether there are aneurysms and arteriovenous malformations. The main causes of cerebral insufficiency include cerebral atherosclerosis, hyperlipidemia, diabetes, hypertension, vascular malformation, severe vascular stenosis, heart diseases such as arrhythmia, coronary heart disease, severe hypovolemia and severe hypotension.