Hemodynamic effects of the carotid abnormalities courses by MRI and ultrasound

Methods 50 healthy volunteers (control group) and 43 patients with carotid abnormalities (CAs) were examined on 1.5T MR-scanner using routine MR protocol and quantitative MR angiography (qMRA) for estimate of the arterial blood flow velocity and cross sectional area of the ICA. We observed the cross sectional area and the values of peak velocity, mean velocity, flux velocity of arterial blood flow at one cardiac cycle at cervical and intracranial segments of the ICA (Fig. 1). 20 volunteers were performed US for the assessment of the vascular wall and peak systolic velocity (PSV) values of the arterial blood at the portion between common carotid artery (CCA) bifurcation and ICA. Statistical analysis was performed by mean value and confidence interval (for p=0.05). Student’s paired t-test was used to indicate significant differences between mean values at the patient and control groups.