Search for dissertations about: "white matter lesions"

Showing result 1 - 5 of 36 swedish dissertations containing the words white matter lesions.

  1. 1. Volumetric assessment of hippocampus and cerebral white matter lesions in structural MRI

    Author : Erik Olsson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; structural MRI; white matter lesions; hippocampal volumetry; reliability; mild cognitive impairment; dementia; low dose radiation;

    Abstract : Assessment in structural MRI like hippocampal volumetry and white matter lesion (WML) assessment is receiving widespread attention and recommen-dation as important research and diagnostic tools. The aim in this thesis is to contribute to enhanced reliability and validity in structural MRI assessment. READ MORE

  2. 2. Epidemiological, clinical anf pathogenetic studies of acute intermittent porphyria

    Author : Ingemar Bylesjö; Christer Andersson; Pertti Mustajoki; Umeå universitet; []
    Keywords : Medicine; Acute intermittent porphyria; epilepsy; melatonin; diabetes mellitus; white-matter lesions; symptoms; Medicin; Medicine; medicin;

    Abstract : Porphyrias are inherited metabolic disorders characterised by an impairment of heme biosynthesis. Acute intermittent porphyria (AIP) is the most common of the acute porphyrias in Sweden. Acute attacks of AIP are characterised by neuro-psychiatric symptoms, including epileptic seizures. READ MORE

  3. 3. Craniopharyngioma. Morbidity and Structural Changes in the Brain

    Author : Sigríður Bára Fjalldal; Lund Medicin; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; craniopharyngioma; hypothalamus; hypothalamic obesity; metabolism; cognition; magnetic resonance imaging; diffusion tensor imaging; white matter lesions; morbidity; cardiovascular risk; craniofaryngiom; hypotalamus; hypotalamisk fetma; ämnesomsättning; kognition; magnetkameraundersökning; vitsubstansförändringar; dödlighet; hjärt-kärlsjukdomar;

    Abstract : Hypothalamus (HT) is a brain structure which serves as a coordination center for several vital body functions. Craniopharyngioma (CP) is a pituitary tumor with high morbidity, primarily due to HT lesion. READ MORE

  4. 4. Hippocampal volumetry in mild cognitive impairment

    Author : Carl Eckerström; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : mild cognitive impairment; dementia; Alzheimer s disease; vascular dementia; MRI; hippocampus; white matter lesions; CFS biomarkers; neuropsychology;

    Abstract : Dementia is a syndrome with cognitive decline as a prominent feature. MCI is similarly a syndrome of cognitive decline, albeit with much subtler symptoms, and has been identified as a condition at risk for progression to dementia. A considerable clinical challenge lies in identifying MCI patients with an underlying dementia disorder. READ MORE

  5. 5. Biophysical modelling in diffusion MRI: The role of tissue microstructure and water exchange

    Author : Markus Nilsson; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Diffusion; MRI; tissue microstructure; water exchange; Monte Carlo simulations; white matter;

    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