| Abstract:Objective：To explore the clinical value of high frequency color Doppler ultrasound in the diagnosis of upper limb nerve disease. Methods：The inspection of 32 patients with upper limb nerve disease was performed by high frequency color Doppler ultrasound. Through observing the upper limb nerve continuity, epineurium, nerve bundle, surrounding tissues, the nerve associated mass and their relevance, the type and location of neurological diseases were confirmed, and the ultrasonographic features were analyzed and compared with those of the healthy side. Results：Fourteen cases showed single schwannoma, whose image characteristics were priority to elliptic low echo, clear boundary, the envelope. Six cases showed neurofibromatosis; among them, 5 cases with single neurofibroma showing low echo, internal uniform, fusiform shape, and the ends connected with the nerves; other 1 case with multiple and beaded neurofibroma. Three cases showed ulnar neuritis with local nerve thickening, echo reduction, hypoechoic cross section, "screen mesh shape" structure disappearing, and abundant blood flow signals on CDFI. Nine cases showed traumatic nerve injury, whose local nerve was compressed and morphologically abnormal, with irregular abnormal echo around region. Conclusions：The different upper limb nerve diseases have different characteristic ultrasonography, and high frequency color Doppler ultrasound may provide the preferred image basis for clinical diagnosis and treatment. |