CT in Evaluation of the Circle of Willis
The method of visualizing the circle of Willis intentionally on contrast-enhanced CT scan was studied. The incidence of circle of Willis in our series was 86%. Only mild side effects were observed, in 7.5% of cases. CT of 60 proven cerebral aneurysms were reviewed and aneurysm was detected in 57%. This method has the potential to be a noninvasive screening procedure for evaluation of suspected cerebral aneurysm, as well as evaluation of marked arteriosclerosis, occlusion of major arteries, and mass effect of parasellar tumors.
KeywordsIodine Hydrocephalus Weinstein Arteriosclerosis Meglumine
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- 2.Hayward, R.D., O’Reilly, G.V.A.: Intracerebral haemorrhage. Accuracy of computerized transverse axial scanning in predicting the underlying aetiology. Lancet 1976 14, 7949Google Scholar
- 5.Pressman, B.D., Gilbert, G.E., Davis, D.O.: Computerized transverse tomography of vascular lesions of the brain. Part II: Aneurysm. Am. J. Roentgenol. 124, 215–219 (1975)Google Scholar
- 6.Scotti, G., Melanqon, D., Ethier, R., Terbrugge, K.: Diagnosis of subarachnoid haemorrhage by computerized tomography in intercranial aneurysms. In: The first European seminar on computerised axial tomography in clinical practice, pp. 253–260 (eds. G.H. du Boulay, I.F. Moseley). Berlin-Heidelberg-New York: Springer 1977Google Scholar
- 7.Weinstein, M.A., Duchesneau, P.M., Weinstein, C.E.: Computed angiotomography. Am. J. Roentgenol. 129, 699–701 (1977)Google Scholar