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  Vol. 45 No. 6, June 1988 TABLE OF CONTENTS
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Abnormal Resting Regional Cerebral Blood Flow Patterns and Their Correlates in Schizophrenia

Roy J. Mathew, MD; William H. Wilson, PhD; Stephen R. Tant; Lynn Robinson, RN; Rudra Prakash, MD

Arch Gen Psychiatry. 1988;45(6):542-549.


Abstract



• Regional cerebral blood flow (CBF) was measured under resting conditions in 108 right-handed schizophrenic inpatients and a matched group of normal controls with the xenon 133 inhalation technique. Forty-six patients were free of all medication for two weeks. There were no significant differences in CBF to the two hemispheres. The patients showed a comparatively reduced anteroposterior (AP) gradient for CBF. Though there were no differences in frontal flow, the patients had higher flow to several postcentral brain regions, bilaterally. Cerebral blood flow in the patients correlated inversely with age and positively with carbon dioxide level. Women had higher flow than men. Duration of the illness was the only significant predictor of the reduced AP gradient in patients. Higher left temporal and right parietal flow were found to be the best discriminators between patients and controls. Mean hemispheric flow to both hemispheres and several brain regions correlated with the total score and the item, unusual thought content, of the Brief Psychiatric Rating Scale. There were no differences in regional CBF between medicated and unmedicated patients.



Author Affiliations



From the Department of Psychiatry, Duke University Medical Center, Durham, NC (Drs Mathew and Wilson and Mr Tant), and the Department of Psychiatry, School of Medicine, Vanderbilt University, Nashville, Tenn (Dr Prakash and Ms Robinson).


Footnotes



Accepted for publication May 28, 1987.

Reprint requests to Box 3972, Duke University Medical Center, Durham, NC 27710 (Dr Mathew).



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