Blood Flow Velocity

A methodological approach for quantifying and characterizing the stability of agitated saline contrast: implications for quantifying intrapulmonary shunt.
Agitated saline contrast echocardiography is often used to determine blood flow through intrapulmonary arteriovenous anastomoses …
Heather K Hackett, Lindsey M Boulet, Paolo B Dominelli, Glen E Foster
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The effects of graded changes in oxygen and carbon dioxide tension on coronary blood velocity independent of myocardial energy demand.
In humans, coronary blood flow is tightly regulated by microvessels within the myocardium to match myocardial energy demand. However, …
Lindsey M Boulet, Mike Stembridge, Michael M Tymko, Joshua C Tremblay, Glen E Foster
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Role of CO2 in the cerebral hyperemic response to incremental normoxic and hyperoxic exercise.
Cerebral blood flow (CBF) is temporally related to exercise-induced changes in partial pressure of end-tidal carbon dioxide (PetCO2 ); …
Kurt J Smith, K W Wildfong, R L Hoiland, M Harper, N C Lewis, A Pool, S L Smith, T Kuca, G E Foster, P N Ainslie
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Measuring the human ventilatory and cerebral blood flow response to CO$_textrm2$: a technical consideration for the end-tidal-to-arterial gas gradient
Michael M Tymko, Ryan L Hoiland, Tomas Kuca, Lindsey M Boulet, Joshua C Tremblay, Bryenna K Pinske, Alexandra M Williams, Glen E Foster
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The contribution of arterial blood gases in cerebral blood flow regulation and fuel utilization in man at high altitude.
The effects of partial acclimatization to high altitude (HA; 5,050 m) on cerebral metabolism and cerebrovascular function have not been …
Christopher K Willie, David B MacLeod, Kurt J Smith, Nia C Lewis, Glen E Foster, Keita Ikeda, Ryan L Hoiland, Philip N Ainslie
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Regional changes in brain blood flow during severe passive hyperthermia; the effects of PaCO2 and extra-cranial blood flow.
We investigated; 1) the regional distribution of cerebral blood flow (CBF), 2) the influence of end-tidal PCO2 (PETCO2) on CBF, and 3) …
Anthony Richard Bain, Kurt J Smith, Nia C Lewis, Glen Edward Foster, Kevin W Wildfong, Christopher K Willie, Geoffrey L Hartley, Stephen S Cheung, Philip N Ainslie
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High on altitude: new attitudes toward human cerebral blood flow regulation and altitude acclimatization
Glen E. Foster
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Ventilatory and cerebrovascular responses to hypercapnia in patients with obstructive sleep apnoea: effect of CPAP therapy.
The purpose of this study was to assess whether the cerebrovascular response to hypercapnia is blunted in OSA patients and if this …
Glen E Foster, Patrick J Hanly, Michele Ostrowski, Marc J Poulin
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Effects of continuous positive airway pressure on cerebral vascular response to hypoxia in patients with obstructive sleep apnea.
RATIONALE:The mechanism leading to increased risk of stroke in patients with obstructive sleep apnea (OSA) is unknown. It may occur …
Glen E Foster, Patrick J Hanly, Michele Ostrowski, Marc J Poulin
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