Search for dissertations about: "cerebral white matter lesions"

Showing result 1 - 5 of 18 swedish dissertations containing the words cerebral white matter lesions.

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

    Author : Erik Olsson; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 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

  4. 2. Cerebral arterial pulsatility imaging using 4D flow MRI : methodological development and applications in brain aging

    Author : Tomas Vikner; Anders Wåhlin; Anders Eklund; Jan Malm; Lars Nyberg; Susanne Schnell; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Magnetic resonance imaging; 4D flow MRI; medical image analysis; cerebral hemodynamics; arterial pulsatility; DCE MRI; blood-brain barrier; white matter lesions; perivascular spaces; cerebral small vessel disease; hippocampus; cognition; aging; biomedicinsk strålningsvetenskap; Biomedical Radiation Science;

    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

  5. 3. Clinical evaluation and implications of left atrial remodeling in atrial fibrillation : From silent cerebral lesions and atrial stunning to novel electrocardiographic tools for prediction of arrhythmia outcome

    Author : Panagiotis Arvanitis; Carina Blomström-Lundqvist; Mårten Rosenqvist; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Atrial fibrillation; left atrial remodeling; recurrence; new-onset; silent cerebral lesions; white matter hyperintensities; cardioversion; pulmonary vein isolation; risk factors; electrocardiographic predictors; P-wave indices; machine learning; predictive models; Covid-19;

    Abstract : Atrial fibrillation (AF) is the most common cardiac arrhythmia. Left atrial (LA) remodeling and reverse remodeling are associated with cerebral involvement and cognitive function (CF) changes. Risk stratification for AF related outcomes is essential in the management of patients with AF. READ MORE

  6. 4. Movement performance in elderly women. Relation to neuroimaging findings, medical conditions and activities of daily living

    Author : Xinxin Guo; Göteborgs universitet; []
    Keywords : movement performance; elderly women; PLM test; age; cerebral white matter lesions; brain atrophy; obesity indices; serum lipids; medical conditions and IADL.;

    Abstract : Aims: To study age-related changes of movement performance and their relation to cerebral white matter lesions, brain atrophy, obesity indices, serum lipids, medical conditions and instrumental activities of daily living (IADL).Methods: Study samples were part of the Prospective Population Study of Women and the Gerontological and Geriatric Population Studies (H 70) in Göteborg, Sweden. READ MORE

  7. 5. Postural adjustments in sitting position : effect of development, training and brain lesions

    Author : Eva Brogren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : postural adjustments; development; training; cerebral palsy; preterm birth; brain lesions;

    Abstract : The aim of the present study was to investigate the development of postural adjustments, and how this development could be affected by daily training and early brain lesions. To this end postural adjustments were assessed by means of multiple surface EMGs of neck, trunk and leg muscles and kinematics in various well documented groups of children. READ MORE