Search for dissertations about: "Role of mri in white matter"
Showing result 1 - 5 of 21 swedish dissertations containing the words Role of mri in white matter.
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1. Biophysical modelling in diffusion MRI: The role of tissue microstructure and water exchange
Abstract : Diffusion MRI is widely used to study brain structure in vivo. While this technique is often applied to investigations of brain connectivity, it can also be used to infer specific information about the tissue microstructure; for example, to estimate the axon diameter. READ MORE
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2. Cerebral arterial pulsatility imaging using 4D flow MRI : methodological development and applications in brain aging
Abstract : 4D flow magnetic resonance imaging (MRI) is increasingly recognizedas a versatile tool to assess arterial and venous hemodynamics. Cerebral arterial pulsatility is typically assessed by analyzing flow waveforms over the cardiac cycle, where flow amplitude is a function of cardiac output, central arterial stiffness, and cerebrovascular resistance and compliance. READ MORE
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3. Brain Structure and Function in Adolescents with Atypical Anorexia Nervosa
Abstract : Atypical anorexia nervosa (AAN) has a high incidence in adolescents, resulting in significant morbidity and mortality. The weight loss is generally less pronounced than that experienced in full-syndrome anorexia nervosa (AN), but the medical consequences can be as severe. READ MORE
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4. Diffusion tensor magnetic resonance imaging of the brain : Tractography analysis with application in healthy individuals and patients
Abstract : In study 1, thirty-eight healthy controls were used for optimization of the method. Fifteen patients with progressive supranuclear palsy and an equal number of age-matched healthy controls underwent diffusion tensor MRI and were then investigated and compared groupwise. READ MORE
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5. Telomeres and the brain : an investigation into the relationships of leukocyte telomere length with functional and structural attributes of the brain
Abstract : Telomeres are the outermost parts of linear chromosomes. They consist of tandemly repeated non-coding short nucleotide sequences (TTAGGG in all vertebrates), in humans spanning over the last 2 to 15 kilobase pairs of the chromosome. Due to the end-replication problem, telomeres shorten with each cellular division. READ MORE