[Abstract] Objective： To observe the effect of detoxifying and blood circulation activating Chinese herb extraction of polygonum cuspidatum and hawthorn on carotid intima-media thickness (IMT)， plaque integral and plaque stability related serum indexes of patients with carotid atherosclerosis. Method： Sixty and four cases of carotid artery atherosclerosis patients were assigned randomly to 2 groups： detoxifying and blood circulation activating treatment group(treatment group ......