Objective To explore the use of three-dimensional computed tomography angiography(3 D CTA) in the diagnosis of cervical spondylosis with vertebral artery involvement. Methods The study group included 45 patients treated for cervical spondylosis with vertebral artery involvement,from January 2014 to July 2015;42 healthy volunteers were selected as the control group. 3 D CTA data of all research subjects were evaluated. Results The findings in the experimental group included 3 patients with normal vertebral a...