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Regional Cerebral Blood Flow in Patients with Aneurysms: Estimation by Xenon 133 Inhalation

Published online by Cambridge University Press:  18 September 2015

Bryce Weir ,
Devidas Menon  and
Thomas Overton
Bryce Weir*
Affiliation:
Divisions of Neurosurgery and Biomedical Engineering, Faculty of Medicine, University of Alberta, Edmonton
Devidas Menon
Affiliation:
Divisions of Neurosurgery and Biomedical Engineering, Faculty of Medicine, University of Alberta, Edmonton
Thomas Overton
Affiliation:
Divisions of Neurosurgery and Biomedical Engineering, Faculty of Medicine, University of Alberta, Edmonton
*
520-8409-112 Street, Edmonton, Alberta, T6G 1K6, Canada.
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Seventy six regional cerebral blood flow (rCBF) studies were conducted on 32 patients who had a total of 39 aneurysms. Twenty three of these patients were studied pre- and post-operatively. Normal values were obtained from a control group of 33 subjects, each of whom underwent one rCBF study. Flow was reduced following subarachnoid hemorrhage (SAH); it increased significantly postoperatively. Lower flows were associated with poorer clinical grades. There was a greater variation in regional distribution of flow immediately following SAH than in normals or in patients who had recovered from the acute phase. rCBF studies correlated with CT scans demonstrated that a progressive increase in ventricular size was accompanied by a progressive reduction in flow. In addition, intraventricular hemorrhage (IVH) was associated with a significant reduction in cerebral blood flow (CBF). No significant correlation between CBF and spasm was demonstrable.

Type
Research Article
Information
Canadian Journal of Neurological Sciences , Volume 5 , Issue 3 , August 1978 , pp. 301 - 305
Copyright
Copyright © Canadian Neurological Sciences Federation 1978

References

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