Document Detail

Prediction of hemispheric blood flow from carotid velocity measurements. A study with the Doppler and 133Xe inhalation techniques.
MedLine Citation:
PMID:  7414669     Owner:  NLM     Status:  MEDLINE    
Doppler carotid velocity determinations were related to hemispheric blood flow measurements by the 133Xe inhalation method in 28 patients with psychiatric disorders without arterial pathology and in 2 normal subjects. Results from 39 double determinations showed a product-moment correlation of 0.88 (p < 0.001) between right hemispheric blood flow and right internal carotid end-diastolic velocity. The correlation for the left side was slightly lower (r = 0.83), while the common carotid end-diastolic velocity showed a considerably lower correlation of 0.71 (rt) and 0.69 (lt) respectively. The peak-systolic velocity values (internal carotids) showed a less close relationship to hemispheric flow (r = 0.71 (rt) and r = 0.61 (lt)). It is concluded that a fairly accurate (15-20% maximum error) prediction of hemispheric blood flow from Doppler internal carotid end-diastolic velocity values is possible in patients without abnormalities in these arterial systems. The high correlations found, in spite of the fact that arterial diameters were not taken into account, are further proof of the accuracy and validity of both methods.
J Risberg; P Smith
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Stroke; a journal of cerebral circulation     Volume:  11     ISSN:  0039-2499     ISO Abbreviation:  Stroke     Publication Date:    1980 Jul-Aug
Date Detail:
Created Date:  1980-11-20     Completed Date:  1980-11-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0235266     Medline TA:  Stroke     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  399-402     Citation Subset:  IM    
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MeSH Terms
Blood Flow Velocity
Brain / anatomy & histology,  blood supply
Carotid Arteries / physiopathology*
Doppler Effect*
Middle Aged
Organ Size
Physical Phenomena
Vertebral Artery
Xenon Radioisotopes / diagnostic use*
Reg. No./Substance:
0/Xenon Radioisotopes

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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