Journal of Diagnostic Medical Sonography

 

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Journal of Diagnostic Medical Sonography, Vol. 21, No. 5, 384-391 (2005)
DOI: 10.1177/8756479305278982

Effects of Cervical Rotation on Hemodynamics in Vertebral Arteries

Huseyin Ozdemir, MD

Firat University School of Medicine, Department of Radiology, 23119 Elazig, Turkeyozdemir{at}firat.edu.tr

Mutlu Cihangiroglu, MD

Department of Neurology, Firat University School of Medicine, Elazig, Turkey

Said Berilgen, MD

Serpil Bulut, MD

Department of Radiology, Yeditepe University School of Medicine, Istanbul, Turkey

The purpose of this study was to assess the effects of cervical rotations on flow velocity and volumes of vertebral arteries in healthy individuals and patients with cervical spondylosis and vertebrobasilar insufficiency. Twenty-eight patients with degenerative changes in the cervical spine (group 1), 24 patients with clinically proven vertebrobasilar insufficiency (group 2), and 20 healthy individuals (group 3) were evaluated. Significant difference was found in flow velocities of both vertebral arteries during neutral, 30-degree, 60-degree, and maximum rotations between groups 1 to 3 and groups 2 to 3. No significant difference was observed in flow velocities and volumes of the vertebral artery between groups 1 and 2. This occurrence might be explained by the fact that both groups have been affected not only by atherosclerotic changes but also by external pressure due to degenerative changes in the cervical spine.

Key Words: cervical spondylosis • cervical rotation • vertebral artery • vertebrobasilar insufficiency • Doppler ultrasound


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