Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"cerebral oxygenation"”.
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AI-based analysis of cerebral oxygenation in preterm and term infants
… to brain injuries resulting from inadequate cerebral oxygenation, posing significant risks to their long-term neurodevelopment. Near-infrared spectroscopy (NIRS) is a non-invasive technology capable of monitoring regional cerebral oxygen saturation (rcSO2) and detecting cerebral desaturation …
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Monitoring of cerebral oxygenation, cerebrovascular reactivity and circulatory function in preterm infants
Monitoring of cerebral oxygenation, cerebrovascular reactivity and circulatory function in preterm infants Brain injury in the preterm infant is associated with death and lifelong disability. Cerebral hypoxia and fluctuations in cerebral blood flow in the first two days of life have been implicated …
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MRI based cerebral oxygenation measures in humans : technical development for use across lifespan
MRI based cerebral oxygenation measures could enable brain-centered clinical care and improve understanding of brain energy use throughout human development. We made technical improvements to two MR oxygenation imaging techniques, and explored the concordance between various methods to quantify the …
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Prospective study to compare the difference in cerebral perfusion in patients undergoing shoulder surgery with the standard beach chair position compared to 30˚ inclination
… angles patients suffered a significant number of cerebral desaturation events that may lead to ischaemic neurological events. This angle is far more upright than what is used in our practice. We postulated that decreasing the angle of inclination may be protective of cerebral perfusion. We …
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EFFECTS OF ACUTE NORMOBARIC HYPOXIA DURING EXERCISE AND CONCURRENT MENTAL STRESS ON THE CARDIOVASCULAR SYSTEM IN HEALTHY ATHLETES
… these stressors impacts systemic hemodynamics, cerebral oxygenation, and autonomic regulation, especially in healthy trained individuals. AIM: This research aims to evaluate the integrative cardiovascular responses to exercise under normobaric hypoxia with concurrent cognitive engagement in …
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Cerebral Hemodynamics in High-Risk Neonates Probed by Diffuse Optical Spectroscopies
… in these high-risk infants. Assessment of cerebral oxygenation, cerebral blood volume, and the regulation of cerebral blood flow (CBF) during the neonatal period is vital for evaluating brain health. Traditional CBF imaging methods fail, however, for both ethical and logistical reasons. In …
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Central and peripheral determinants of fatigue in acute hypoxia
… at rest, despite large reductions in cerebral oxygenation. Maximal force declined by ~30% after single-limb exercise in all conditions, despite reduced exercise time in severe-hypoxia compared to normoxia (15.9 ± 5.4 vs. 24.7 ± 5.5 min; p < 0.05). Peripheral mechanisms of fatigue …
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Neuromonitoring during newborn transition
… electrical activity (electroencephalography) or cerebral oxygenation via NIRS (near infrared spectroscopy). In practice the clinical applications of electroencephalography (EEG) are limited to monitoring infants following moderate to severe hypoxic ischemic injury (HIE), and for the detection of …
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Use of near-infrared spectroscopy to identify trends in regional cerebral oxygen saturation in horses
… (NIRS) to identify trends in regional cerebral oxygen saturation (rSO2) in both conscious and anaesthetised healthy horses. A cerebral/somatic oximeter sensor recorded rSO2 from the dorsal sagittal sinus of 6 healthy horses. Values for rSO2, arterial and venous oxygen and carbon dioxide …
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Prenatal Cardiovascular Physiology and Early Neurodevelopment in Cyanotic Congenital Heart Disease
… disturbances have been linked to disruptions in cerebral oxygenation due to the abnormal cardiac connections and obstructed blood flow that characterize CHD. Recently, our group developed an updated fetal cardiovascular magnetic resonance (CMR) approach to non-invasively assess patient-specific …
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The Gut Microbiome as a Novel Approach for Reversing Long-Term Inflammation and Accelerated Aging Across the Lifespan
… (HIE) arises from disrupted perinatal cerebral oxygenation and perfusion. It is a leading global cause of infant death and disability which disproportionally affects males. Like adult stroke, HIE initiates a rapid influx of inflammatory cells across the blood brain barrier and a loss of …
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Identifying the Neural Correlates of Motor Sequence Learning and Movement Automaticity
… experiment (Chapter 3) further investigated the cerebral oxygenation changes in the PFC following motor sequence learning. To enable better distinction between learning and performance, this experiment including multiple motor sequence tasks, a control group, four practice sessions and a …
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Redox regulation of vascular NO bioavailability during hypoxia: implications for oxygen transport and exercise performance
… and peripheral origins of fatigue. Changes in cerebral and muscle oxygenation have not been well characterised during incremental exercise in hypoxia. It is possible attainment of O2peak is driven by the oxygenation profile of these tissues whilst changes in molecular biomarkers of endothelial …
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The Effect Of Body Position On Cerebral Bllod Flow, Cognition, Cardiac Output, Map,and Motor Function In Patients Undergoing Shoulder Surgery : Lateral Versus Beach Chair Position Under General Anesthesia
… <p>The Effect of Body Position on Changes in Cerebral Blood Flow, Cognition, and Motor Function in Patients Undergoing Shoulder Surgery: Lateral versus Beach Chair Position Under General Anesthesia</p> <p> By</p> <p> KELLEY LABONTY</p> <p> December 2013</p> <p>Advisor: Dr. Steven Cala</p> …
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Zerebrale Nahinfrarotspektroskopie bei Neugeborenen : Eine Untersuchung mit dem "CRITIKON 2020 Cerebral RedOx Monitor"
… Oxygenierung zu erhalten. Der „CRITIKON™ 2020 Cerebral RedOx Monitor“ wurde als ein Nahinfrarot-spektroskopie-Gerät für den klinischen Einsatz zugelassen, welches erstmals die Möglichkeit einer Quantifizierung der Messparameter regionale Sauerstoffsättigung, sowie reduziertes und oxygeniertes …