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Alteration of the Cerebral Bloodflow Study Due to Reflux in Internal Jugular Veins

Veterans Administration Hospital and State University of New York at Buffalo, Buffalo, New York
Richmond Memorial Hospital, Richmond, Virginia

Correspondence: For reprints contact: Jehuda J. Steinbach, Nuclear Medicine Service, Veterans Administration Hospital, 3495 Bailey Ave., Buffalo, N.Y. 14215.

ABSTRACT

This paper considers abnormalities of flow patterns in the cervical vasculature due to varying degrees of jugular venous reflux, and their influence on cerebral bloodflow studies. Two commonly encountered patterns are described. In the first group, the abnormal flow study resulted from reflux of the activity in the left internal jugular vein. In the second group, the observed abnormality resulted from reflux of the activity in the left internal jugular vein, followed by flow into the contralateral jugular vein, most probably through the transverse and sigmoid sinuses.

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