To assess the accuracy of color doppler ultrasound in diagnosis of renal artery stenosis

Abstract

Objective: To evaluate the accuracy and clinical application value of color Doppler ultrasound in the diagnosis of accessory renal artery (ARA) stenosis. Methods: a retrospective analysis on 80 patients from January 2014 to November 2017, due to hypertension in our hospital. All of them accepted ultrasound examination, preliminary diagnosis with suspected accessory renal artery or accessory renal artery stenosis and underwent CTA scan within 2 weeks. We record the number of accessory renal artery, origin, course, stenosis. Results: 80 cases of patients with 86 accessory renal arteries. Taking CTA as the reference standard, in the 54 right accessory renal arteries, 36 with stenosis confirmed by CTA, ultrasound confirmed 34(34/36), the diagnosis rate was 94.4%, 32 left accessory renal arteries, 20 with stenosis confirmed by CTA, ultrasound diagnosed 12(12/20) with diagnosis rate 60%. Conclusion: color Doppler ultrasound can be used as the main means of screening accessory renal artery and accessory renal artery stenosis, but in ectopic origin of accessory renal artery, with relatively higher missed diagnosis rate, if necessary with CTA or DSA.