scholarly journals Regional Cerebral Blood Flow in the Brain Edema Following X-irradiation in the Monkey

1977 ◽  
Vol 17pt2 (1) ◽  
pp. 13-22
Author(s):  
HIDEO UENO
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Brain Edema ◽  
Regional Cerebral Blood Flow ◽  
Regional Cerebral Blood ◽  
X Irradiation ◽  
The Brain

Vorläufige Ergebnisse von 99mTc-HMPAO-SPECT-Untersuchungen bei endogenen Psychosen

1989 ◽  
Vol 28 (03) ◽  
pp. 88-91
Author(s):  
J. Schröder ◽  
H. Henningsen ◽  
H. Sauer ◽  
P. Georgi ◽  
K.-R. Wilhelm
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Regional Cerebral Blood Flow ◽  
Regions Of Interest ◽  
Post Mortem ◽  
Regional Cerebral Blood ◽  
Hmpao Spect ◽  
Endogenous Psychoses ◽  
The Brain ◽  
99Mtc Hmpao

18 psychopharmacologically treated patients (7 schizophrenics, 5 schizoaffectives, 6 depressives) were studied using 99mTc-HMPAO-SPECT of the brain. The regional cerebral blood flow was measured in three transversal sections (infra-/supraventricular, ventricular) within 6 regions of interest (ROI) respectively (one frontal, one parietal and one occipital in each hemisphere). Corresponding ROIs of the same section in each hemisphere were compared. In the schizophrenics there was a significantly reduced perfusion in the left frontal region of the infraventricular and ventricular section (p < 0.02) compared with the data of the depressives. The schizoaffectives took an intermediate place. Since the patients were treated with psychopharmaca, the result must be interpreted cautiously. However, our findings seem to be in accordance with post-mortem-, CT- and PET-studies presented in the literature. Our results suggest that 99mTc-HMPAO-SPECT may be helpful in finding cerebral abnormalities in endogenous psychoses.

Personality and Regional Cerebral Blood Flow

1984 ◽  
Vol 144 (5) ◽  
pp. 529-532 ◽  
Author(s):  
Roy J. Mathew ◽  
Maxine L. Weinman ◽  
Deborah L. Barr
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Brain Function ◽  
Regional Cerebral Blood Flow ◽  
Cortical Arousal ◽  
Regional Cerebral Blood ◽  
Capillary Perfusion ◽  
Brain Capillary ◽  
Eysenck Personality Inventory ◽  
The Brain

SummaryThe extraversion–introversion dimension of personality is believed to have an inverse relationship with cortical arousal. Brain capillary perfusion is a well established index of brain function and arousal. Regional cerebral blood flow was measured in 51 right-handed females whose personality structure was examined with the Eysenck Personality Inventory (EPI). Significant inverse correlations were found between the brain blood flow and the extraversion–introversion score of EPI.

Compartmental analysis of regional cerebral blood flow in patients with acute severe head injuries

1977 ◽  
Vol 47 (5) ◽  
pp. 699-712 ◽  
Author(s):  
Erna M. Enevoldsen ◽  
Finn Taagehøj Jensen
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Brain Tissue ◽  
Regional Cerebral Blood Flow ◽  
Head Injuries ◽  
Initial Slope ◽  
Flow Index ◽  
Normal Brain ◽  
Regional Cerebral Blood ◽  
The Brain

✓ Bicompartmental analysis for the calculation of regional cerebral blood flow (rCBF) from 133Xe clearance in brain tissue has not been thoroughly explored in clinical studies. Most authors rely either on the average rCBF obtained by height/area analysis of the clearance curves or on the initial-slope flow index. Possibly the reason is that the validity of the bimodal flow distribution in abnormal brain tissue is considered questionable. In the present study, bicompartmental analysis, performed by a least-square computerized iterative approach, was used in the calculation of the flow and weight of the tissue of the brain of patients with severe head injuries. The analysis was found to give important information of the nature and course of the brain lesions even if the clearance curves did not have the normal bi-exponential shape, provided the results obtained were properly interpreted. In such cases, the values of the flow and relative weight could not be taken as flow and weight values of gray and white matter, but rather as indices of fast and slower flow components. The interpretation of the results was based on the identification of three types of 13-minute clearance curves, each being characteristic of a type of brain lesion. The clearance curves from fairly normal brain tissue appeared to be bi-exponential; curves from areas of severe cortical contusion had, in addition, an initial and rapid “third” component, a tissue peak, whereas curves from severely edematous brain tissue approached the monoexponential shape.

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