منابع مشابه
Analysis of inhalation rCBF data.
Relative to other approaches that have been recommended, fitting all head data, solving for a time shift, and including an air passage artifact term in the model significantly improved the estimate of gray matter blood flow by the inhalation technique. A robust algorithm, which incorporates these features, has been developed. Formulas which facilitate implementation of this algorithm are report...
متن کاملMeasurement of activated rCBF by the 133Xe inhalation technique: a comparison of total versus partial curve analysis.
An initial assessment of the differential sensitivity of total versus partial curve analysis in estimating task related focal changes in cortical blood flow measured by the 133Xe inhalation technique was accomplished by comparing the patterns during the performance of two sensorimotor tasks by normal subjects. The validity of these patterns was evaluated by comparing them to the activation patt...
متن کاملRegulation of rCBF by Diffusible Signals: An Analysis
Local changes in cerebral hemodynamics are observed within a few hundred milliseconds of changes in neural activity. If hemodynamic responses are mediated by passive diffusion of a spatial signal (from the site of neural activity to the microvessels) then the dynamics of the response suggest a lower limit on the signal's apparent diffusion and elimination. The aim of this work was to estimate t...
متن کاملwoman-defined identity: analysis of selected poems of adrienne rich
the current thesis is composed in five chapters in the following fashion: chapter two encompasses the applied framework of the project in details; the methodology of carl gustav jung to explain the process of individuation, the major archetypes and their attributes and his techniques to assess the mind’s strata are all explained. moreover, the austrian psychoanalysts, heinz kohut’s models of a...
rCBF SPECT evaluation of dementia.
Dementia is an acquired impairment of intellectual function, affecting at least three out of six spheres of mental activity: language, memory, visuospatial skills, emotion, personality and cognition. Dementia may be divided into global dementia, when all intellectual functions are more or less randomly impaired and lacunar dementia with more selective functional impairment. The aetiology of dem...
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ژورنال
عنوان ژورنال: Stroke
سال: 1987
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.18.2.495