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From the Institute of Neurology (Drs. Bono, Lupo, Mangone, and Quattrone), Neurosurgery (Dr. Lavano), and Neuroradiology (Dr. Pardatscher), University Magna Græcia, Catanzaro; and Institute of Neurological Sciences (Drs. Fera and Quattrone), National Research Council, Piano Lago di Mangone, Cosenza, Italy.
Address correspondence and reprint requests to Dr. Prof. Aldo Quattrone, Clinica Neurologica, Policlinico MaterDomini, Via T. Campanella, 88100 Catanzaro, Italy; e-mail: a.quattrone{at}isn.cnr.it
Flow artifacts or anatomic variants of venous sinuses often make MR venography (MRV) interpretation difficult. The authors investigated cerebral MRV in 111 subjects with normal CSF pressure to identify the most common flow abnormalities of transverse sinuses (TS). Disturbance of venous outflow in one transverse sinus was commonly observed in 30% of subjects whereas flow abnormalities of both TS occurred in 2 of 111 individuals. Subjects with flow gaps in both TS should undergo lumbar puncture to exclude increased CSF pressure.
Received May 5, 2003. Accepted in final form July 26, 2003.
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