Cerebral CT venography.
OBJECTIVE
To produce cerebral venograms with thin-section helical computed tomography (CT) and to assess their diagnostic utility.


METHODS
Thirty-six CT venograms were obtained in 33 patients after intravenous administration of iodinated contrast material. Eighteen patients had suspected dural sinus thrombosis. Twelve patients had tumor adjacent to a major venous structure. Three patients underwent CT venography during CT angiography.


RESULTS
Superior sagittal, transverse, and straight sinuses were identified on every CT venogram. Other veins were seen with high frequency. Dural sinus thrombosis was diagnosed in seven patients, with magnetic resonance (MR) venographic correlation in five patients. CT venograms were easier to interpret and had fewer artifacts than MR venograms. Relationships of tumor to adjacent cerebral venous structures were well shown on CT venograms.


CONCLUSIONS
CT venography yields detailed images of the intracranial venous circulation with consistently high quality. It is a rapid, useful method for diagnosis of dural sinus thrombosis and for preoperative mapping of venous structures in patients with neoplasm.
Casey
S O
SO
Department of Radiology, Long Island Jewish Medical Center, Albert Einstein College of Medicine, New Hyde Park, NY, USA.
Alberico
R A
RA
Patel
M
M
Jimenez
J M
JM
Ozsvath
R R
RR
Maguire
W M
WM
Taylor
M L
ML
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001932:Brain Neoplasms / Q000000981:diagnostic imaging; D002550:Cerebral Veins / Q000000981:diagnostic imaging* / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D012851:Sinus Thrombosis, Intracranial / Q000175:diagnosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed