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  • Ischemia
  • Functional resistance to graded hypotensive ischemia of various segments of the somatosensory pathway was determined in anesthetized cats by repeated concurrent recordings of regional blood flow measured by hydrogen clearance, and evoked potentials (EPs), of dorsal horn of lumbar spinal cord and cerebral cortex. (ahajournals.org)
  • Results suggested that in comparable degrees of regional ischemia of CNS functional integrity is determined by numbers of synaptic transmissions involved locally. (ahajournals.org)
  • middle cerebr
  • 1 2 3 4 However, conflicting data regarding the accuracy of this method were recently presented by Harris and Bailey, 5 indicating that hypercapnia induced during general anesthesia made a very small increase in rSO 2 despite the more than doubling of the middle cerebral artery flow velocity. (ahajournals.org)
  • abnormalities
  • The increased discrimination provided by the multiple-crystal camera and the estimates of measurement accuracy obtained by this mathematical analysis may facilitate more precise localization of regional blood flow abnormalities in intracranial disease. (ahajournals.org)
  • analyses
  • In future analyses, blood flow data will be used to develop a physiologically based pharmacokinetic model describing thiopental uptake into multiple organs and tissues. (asahq.org)
  • acute
  • [2-Acute blood flow versus time responses to thiopental are reported for individual organs, [5,but not for all organs simultaneously and not for the tissues of distribution. (asahq.org)
  • vascular
  • Whether band flossing influences regional vascular adaptations or strength has not been evaluated. (wku.edu)
  • uniformly
  • However, lowering blood pressure (BP) does not uniformly reverse cognitive decline, suggesting that high BP per se may not cause cognitive decline. (ahajournals.org)
  • infusion
  • BBB was impermeable to gadoteridol 150 min after CA. CBF in the 12 min CA group was blood pressure passive at 60 min assessed via infusion of epinephrine. (pubmedcentralcanada.ca)
  • Resting
  • The resting state fMRI BOLD (blood-oxygen-level-dependent) signal will be evaluated for 'Goodness-of-Fit' to the default mode network at Baseline, 1 week, and 6 and 12 months in AD participants and normal control participants. (clinicaltrials.gov)
  • tracer
  • By arresting flow promptly after a short pulse of diffusible tracer, it is feasible to equate the tracer retained in the tissue (Cif) with that delivered by the blood. (ovid.com)
  • Important advantages of this technique are its noninvasiveness (since magnetically labeled protons in blood are used as a tracer) and short acquisition time at high magnetic field strengths (3.0 T) [ 18 ]. (hindawi.com)