Sökning: "hyperintensity"

Hittade 4 avhandlingar innehållade ordet hyperintensity.

  1. 1. Applications of diffusion MRI: Tensor-valued encoding, time-dependent diffusion, and histological validation

    Författare :Jan Brabec; Lund Medicinsk strålningsfysik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; diffusion MRI; meningioma; glioma; brain tumors; intracranial tumors; undulations; restricted diffusion; time dependence; spherical b-tensor encoding; linear b-tensor encoding; histogram analysis; anisotropic kurtosis; isotropic kurtosis; hyperintensity; conspicuity; white matter; detection; diffusion spectrum; consistency; type; grade; axon diameter; axonal trajectories; Fysicumarkivet A:2022:Brabec;

    Sammanfattning : Diffusion MRI (dMRI) sensitizes the MR signal to the diffusion of water molecules at the microscopic level and thereby non-invasively probes tissue microstructure. This is relevant when determining biological properties of tissues, for example, cancer type and its malignancy. LÄS MER

  3. 2. Atrial fibrillation in aging; methodological aspects and the relation to dementia and cerebral vascular disease

    Författare :Lina Rydén; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; atrial fibrillation; dementia; stroke; silent brain infarcts; white matter hyperintensity; cerebral microbleed; small vessel disease; epidemiology;

    Sammanfattning : Emerging evidence suggest an increased risk of dementia in individuals with atrial fibrillation (AF). However, until recently, few studies have investigated the relation between AF and dementia taking both prevalent and incident stroke into account. LÄS MER

  4. 3. Development of dementia in older adults : the body-mind connection

    Författare :Giulia Grande; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :dementia;

    Sammanfattning : Over the past years, two major lines have emerged in the field of dementia research that are focused on: (1) The accurate and early prediction of dementia, and (2) The identification of modifiable factors for dementia prevention. This thesis has contributed to both. LÄS MER

  5. 4. The role of atrial fibrillation in cognitive aging : a population-based study

    Författare :Mozhu Ding; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The role of atrial fibrillation (AF) in brain and cognitive aging (e.g., cognitive decline and dementia) is still unclear. LÄS MER