Application value of transcranial doppler combined with carotid artery color doppler ultrasound in atherosclerotic plaque of posterior circulation ischemic lesions

Objective:To investigate the value of transcranial doppler(TCD) combined with carotid artertery ultrasound in observing the hemodynamics of intracranial and extracranial blood vessels in posterior circulation ischemia(PCI) lesions,and morphological structure of carotid and vertebral artery.Methods:Forty-eight patients diagnosed by carotid artery and vertebral artery plaque(observation group) and 38 patients without symptom(control group) were examined using TCD combined with carotid ultrasound,and the intima-media thickness(IMT),plaque number composition,diameter and blood flow dynamics characteristics were measured in two groups.Results:Compared with the control group,the IMT of carotid and vertebral artery in observation group thickened(P<0.01).Compared with the control group,the intimal surface was rough,the number of plaques were 46,and the average blood flow rate decreased in observation group(P<0.01).The pulsation and resistance indexes in observation group increased compared with the control group(P<0.01).Conclusions:The application of TCD combined with carotid ultrasound can understand the blood supply of extracranial and intracranial vessels,and which has important clinical value in the etiology diagnosis,guiding treatment and observing curative effect.