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Evaluation of Cerebral Blood Flow in Arteriovenous Malformations by the Xenon 133 Inhalation Method

Published online by Cambridge University Press:  18 September 2015

Devidas Menon  and
Bryce Weir
Devidas Menon*
Affiliation:
Divisions of Neurosurgery and Biomedical Engineering, Faculty of Medicine, University of Alberta, Edmonton
Bryce Weir
Affiliation:
Divisions of Neurosurgery and Biomedical Engineering, Faculty of Medicine, University of Alberta, Edmonton
*
10-102 Clinical Sciences Bldg, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada
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Fifteen regional cerebral blood flow studies (rCBF) were conducted on 14 patients with arteriovenous malformations (AVM). Only one patient was studied at the time of a hemorrhage. None of the patients were operated upon. All patients had angiographically demonstrated lesions. All the CT scans performed demonstrated the lesions. rCBF was increased in the involved hemisphere compared to the non-involved hemisphere and the difference was greater when the malformations were superficial. There was a higher incidence of high flow regions in the involved hemisphere of patients with AVMs compared to our normal control group and patients with subarachnoid hemorrhage (SAH) from aneurysms. Flow rales within the involved hemisphere demonstrated abnormal distributions and greater variability than normals. Some peaks previously demonstrated in the intraarterial flow studies are not apparent using the inhalation method. This noninvasive technique has a potential to provide additional useful information on the natural history of this disorder.

Type
Research Article
Information
Canadian Journal of Neurological Sciences , Volume 6 , Issue 4 , November 1979 , pp. 411 - 416
Copyright
Copyright © Canadian Neurological Sciences Federation 1979

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