Abstract: Objective:To investigate the clinical application value of ultrasound in the diagnosis and differential diagnosis of Takayasu arteritis (TA). Methods:A total of 39 suspected TA patients were examined by ultrasonography, erythrocyte sedimentation rate(ESR), C reactive protein (CRP)and CT angiography(CTA), and the ultrasound examination results were compared and analyzed with the final chinical diagnosis results. Results:Of the 39 cases of suspected TA patients which had been examined by ultrasound, 33 cases were diagnosed as TA, 2 cases were diagnosed as atherosclerosis(AS), 2 cases were diagnosed as fibromuscular dysplasia (FMD) and 2 cases were diagnosed as thromboangiitis obliterans(TAO). Compared with final chinical diagnosis results, 1 FMD patient was misdiagnosed as TA, and the rest of the diagnostic results were consistent with the final chinical diagnosis results. Conclusion:Ultrasound examination can provide objective and accurate basis for the diagnosis and differential diagnosis of TA, and it is an effective method of imaging examination.

Key words: differential diagnosis, Takayasu arteritis, clinical diagnosis, ultrasound, iconography