Three-dimensional helical CT angiography of skull base meningiomas.
OBJECTIVE
To describe the findings of skull base meningiomas on three-dimensional CT angiograms obtained with helical scanning and to evaluate the usefulness of this method.


METHODS
Fifteen patients who had a meningioma near the skull base were examined with helical CT after receiving an intravenous bolus injection of contrast material.


RESULTS
All meningiomas had either a honeycomb (12 patients) or solid (3 patients) pattern of enhancement. Bony structures of the skull base and adjacent major arteries that were displaced or surrounded by tumor were also evident.


CONCLUSIONS
Three-dimensional CT angiography depicts the relationship between skull base meningiomas and neighboring bony and vascular structures clearly, quickly, and with minimal risk to the patient.
Tsuchiya
K
K
Department of Radiology, Kyorin University School of Medicine, Tokyo, Japan.
Hachiya
J
J
Mizutani
Y
Y
Yoshino
A
A
D000328:Adult; D000368:Aged; D000792:Angiography / Q000379:methods; D002533:Cerebral Angiography; D002536:Cerebral Arteries; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007275:Injections, Intravenous; D008297:Male; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging*; D008579:Meningioma / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011856:Radiographic Image Enhancement / Q000379:methods; D012886:Skull / Q000000981:diagnostic imaging; D012888:Skull Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods
D003287:Contrast Media