Color Doppler Ultrasonography in the diagnosis of cervical spondylosis of vertebral artery type and a discussion of the related problems

Objective To discuss the diagnostic value of color doppler ultrasonography and somatosensory evoked potentials in cervical spondylosis of vertebral artery type Methods ①Vertebral arteries of 40 healthy volunteers and 40 patients were examined by ultrasound?CT or MRI simultaneously.The ultrasonic measurements included diameter?peak systolic velocity and resistance index;②16 healthy volunteers and 16 patients were examined by somatosensory evoked potentials;③Vertebral arteries of 40 corpses were calibrated.Results ①Diameters of vertebral arteries were obviously smaller?peak systole velocities were slower and resistance indexes were higher in patients with cervical spondylosis compared with those of volunteers.②Central sense conductive time(CSCT) and latent period of N 20 in patients were elongated apparently compared with those of volunteers.Conclusion The diagnostic value of color doppler ultrasonography in cervical spondylosis of the vertebral artery type is quite apparent and it is able to demonstrate qualitative and quantitative data.Somatosensory evoked potentials provides a new diagnostic method for this disease.