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Cerebrovascular Reactivity and Concussion
Neuroimaging Clinics of North America, 2023Cerebrovascular reactivity (CVR) reflects the change in cerebral blood flow in response to vasodilatory stimuli enabling assessment of the health of the cerebral vasculature. Recent advances in the quantitative delivery of CO2 stimuli with computer-controlled sequential gas delivery have enabled mapping of the speed and magnitude of response to flow ...
Erin T, Wong +3 more
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Circadian cerebrovascular reactivity to CO2
Respiratory Physiology & Neurobiology, 2014Cerebrovascular reactivity (CVR) assesses the ability of the cerebral vasculature to adjust cerebral blood flow in response to changes in arterial carbon dioxide (CO2), and is used as an indicator of cerebrovascular health. A common method of estimating CVR is to measure the increase in blood flow velocity of the middle cerebral artery (MCAv), using ...
J. Strohm, J. Duffin, J.A. Fisher
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The Variability of Cerebrovascular Reactivity with Posture and Time
Journal of Neurosurgical Anesthesiology, 1996Transcranial Doppler (TCD) ultrasonography has been used in a variety of clinical contexts to assess cerebrovascular reserve by measuring carbon dioxide reactivity. Reproducibility with time and altered position of the patient is examined in the present study. Carbon dioxide reactivity was determined in 10 healthy volunteers using TCD.
T S, Mayberg +3 more
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Cerebrovascular reactivity in multiple sclerosis patients
Multiple Sclerosis Journal, 2007A close relationship between multiple sclerosis (MS) lesions and the cerebral vasculature has long been recognised. Some studies have suggested that vascular endothelial cell activation might be an early event in the evolution of MS, and demyelisation may have an ischemic basis in this condition.
Uzuner, Nevzat +2 more
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Cerebrovascular Reactivity in Normal Pregnancy and Preeclampsia
Obstetrics & Gynecology, 2001To compare cerebrovascular reactivity in normotensive and preeclamptic pregnant women.Transcranial Doppler ultrasound was used to measure peak, end-diastolic, and mean velocities in the middle cerebral arteries of 45 normotensive and 36 preeclamptic women in the third trimester.
S, Riskin-Mashiah +3 more
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Cerebrovascular Autoregulation and Monitoring of Cerebrovascular Reactivity
2013Cerebrovascular autoregulation and reactivity are two important processes which maintain CBF at metabolically appropriate levels in response to fluctuations in cerebral perfusion pressure. Additionally, intact vascular reactivity protects the cerebral capillary bed against excessive hydrostatic pressures that may precipitate vasogenic oedema.
Philip M. Lewis +3 more
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