The examination and treatment of carotid plaque may be an important preventative measure for the cardiocerebravascular and CRAO.

And to probe into the change of cerebral hemodynamics and carotid hemodynamics with essential hypertension patients accompanied with carotid atherosclerotic plaque by ultrasound techniques .

The changes of TCM syndromes, blood pressure, blood fat, carotid IMT, and area and volume of plaque were observed in two groups before and after the treatment, and the safety was reviewed.