Search for dissertations about: "cerebral blood volume"
Showing result 16 - 20 of 48 swedish dissertations containing the words cerebral blood volume.
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16. Nuclear magnetic resonance and microcirculation: The influence of pulsatile brain-tissue motion on measurements of intravoxel incoherent motion and assessment of haemodynamics using exo- and endogenous tracers
Abstract : In this project, the potential of magnetic resonance (MR) imaging and spectroscopy in studies of microcirculation and haemodynamics was evaluated. The spatial and temporal characteristics of human pulsatile brain-tissue movements in healthy individuals, relevant for the understanding of the cerebrospinal-fluid (CSF) circulation and the pathogenesis of hydrocephalus, were thoroughly investigated. READ MORE
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17. Effects of Rho kinase, prostacyclin and L-arginine on microvascular permeability and perfusion
Abstract : This thesis presents some effects of Rho kinase, prostacyclin (PGI2) and nitric oxide (NO) in relation to trauma and inflammation by evaluating their effects on microvascular perfusion and permeability in mouse brain and in cat skeletal muscle. PGI2 and NO are endogenous vasoactive substances produced by the endothelium. READ MORE
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18. Cerebral mechanisms in cardiovascular control : studies on haemorrhage and effects of sodium
Abstract : This thesis describes experiments investigating the influence of the brain on cardiovascular adaptations to haemorrhage and excess sodium in conscious chronically prepared sheep. A continuous reduction in blood volume eventually activates a reflex that causes a fall in vascular resistance and heart rate and thereby also in arterial blood pressure. READ MORE
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19. Doppler evaluation of coronary blood flow and coronary flow reserve - Clinical and experimental studies
Abstract : Heart diseases in children cause different combinations of myocardial hypertrophy, increased intra-ventricular pressures, volume overload and decreased oxygen saturation. This may affect basal coronary flow and the ability of the heart to maximally increase coronary flow. READ MORE
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20. On Brain Oedema
Abstract : Traumatic brain injury and bacterial meningitis may at a glance appear as two different disease entities. The host reaction, however, to both trauma and infection involves a strong inflammatory response, with the classical symptomology of rubor, tumor, calor, dolor et functio laesa. READ MORE