Vibration-Induced Regional Cerebral Blood Flow Responses in Normal Aging
نویسندگان
چکیده
منابع مشابه
Regional cerebral blood flow and oxygen consumption in human aging.
The oxygen-15 continuous inhalation technique and PET were used to study the age-related changes in regional CBF and CMRO2. Twenty-seven patients, aged 19 to 76 years, free of any history of cerebral disease and vascular risk factors were examined in "resting state." CBF, CMRO2 and oxygen extraction fraction (OEF) values were calculated in seven different brain structures as well as in mean gra...
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Regional cerebral blood flow (rCBF) was measured by the 133Xenon inhalation method in a selected group of 44 normal non-hospitalized, normotensive subjects aged 19 to 79 years. rCBF was computed as the initial slope index value (ISI). Advancing age was associated with significant reductions in the mean brain and mean hemispheric ISI as well as in individual ISI levels measured from all areas in...
متن کاملRegional blood flow in the normal cerebral hemisphere.
Measurement of the rate of clearance of 133Xenon from the brain after injection of this radioisotope into the internal carotid artery has become an accepted method for estimating cerebral blood flow (H0edt-Rasmussen, 1965, 1967; Ingvar, Cronqvist, Ekberg, Risberg, and H0edt-Rasmussen, 1965). Resolution of the clearance curves into two components, fast and slow, may be carried out (H0edtRasmusse...
متن کاملRegional cerebral blood flow in normal pressure hydrocephalus.
Regional cerebral blood flow (rcbf) was studied preoperatively and at 2 and 6 months postoperatively in 22 normal pressure hydrocephalus patients using xenon-133 inhalation and single photon emission computed tomography. Sixteen of the 22 patients improved (improved group) and six did not (unimproved group). The following comparisons were made: (1) preoperative rcbf in the improved group, to 14...
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ژورنال
عنوان ژورنال: Journal of Cerebral Blood Flow & Metabolism
سال: 1992
ISSN: 0271-678X,1559-7016
DOI: 10.1038/jcbfm.1992.79