Analysis of Transcranial Doppler Exam in Patients with Chronic Cerebral Circulation Insufficiency

Objective Explore transcranial doppler(TCD)in the diagnosis of chronic cerebral blood deficiency application value.Methods For patients with chronic cerebral blood deficiency respectively and patients with cerebral infarction and normal control group transcranial doppler inspection,and measurement index.Results The observation group velocity abnormal rate was 60.2% and hemal stricture rate was 17.9%,and cerebral infarction group were 82.9%,53.7%,and the control group were 9.3%,5.6%.The observation group pulsatility index(PI),resistance index(RI),systolic velocity/end of diastolic velocity(Vs/Vd,S/D)less than cerebral infarction the control group,were significantly higher than normal control group.The control group and the observation group and group compared cerebral infarction difference determined was statistically significant(P0.01).Conclusion For patients with chronic cerebral blood deficiency TCD detection,of the brain function of state to have a preliminary understanding,for safe and effective means of inspection.