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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 23:1418-1420, September 2002
© 2002 American Society of Neuroradiology

Technical Note
HEAD AND NECK

Ultrasonographic Evaluation of Vertebral Venous Valves

Chi-Hsiang Chou^a, A-Ching Chao^a and Han-Hwa Hu^a

^a From the Neurovascular Section, Neurologic Institute, Veterans General Hospital-Taipei, National Yang-Ming University, Taipei, Taiwan

Address correspondence to Professor Han-Hwa Hu, Neurologic Institute, Veterans General Hospital-Taipei, Taipei 11217, Taiwan

Summary: To date, vertebral venous valves have not been studied clinically or by sonography. This report reveals that these valves could be studied noninvasively by using sonographic techniques. Real-time sonography clearly showed the opening and closing of the two cusps of vertebral venous valves at the junction of the vertebral vein and the brachiocephalic vein, which move synchronously with the internal jugular venous valves. This is the first time the vertebral venous valves have been studied by using clinical sonography. This might provide a new point of view for evaluating the clinical significance of vertebral venous valves.

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