فهرست نشریات علمی دسترسی آزاد ایران

Background: Carotid artery stenosis is the main cause of stroke, and evaluating the degree of carotid artery stenosis is of utmost importance in this regard. Objectives: The objective of this study is to compare color Doppler ultrasound (CD-US) and CT angiography in diagnosing carotid artery stenosis in patients referred to a medical imaging center. Results: Comparison results of CD-US and CT findings showed a specificity of 80.6%, sensitivity of 84.7%, and kappa coefficient of 0.60. The most common stenosis location was in the proximal portion of the internal carotid artery. Moreover, the agreement of the two methods in the 4th (70–99%) and 5th (100%) degrees stenosis was very good. Conclusions: The agreement of the two methods was very good for stenosis degree. CD-US had low sensitivity in comparison with CTA in the evaluation of calcification and ulcer. As a result, CTA is a complementary method for CD-US to show calcified plaques and ulcers.