Search for dissertations about: "MRI IN DEMENTIA"

Showing result 1 - 5 of 44 swedish dissertations containing the words MRI IN DEMENTIA.

2. 1. Hippocampal volumetry in mild cognitive impairment

   Author : Carl Eckerström; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 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

4. 2. Morphological alterations in frontotemporal dementia

   Author : Alexander Santillo; Klinisk minnesforskning; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; frontotemporal dementia; diffusion tensor imaging; von Economo neurons;

   Abstract : The present thesis explores alterations in brain morphology in the neurodegenerative disorder of frontotemporal dementia (FTD). With the aim to improve the clinical diagnostics of FTD, we explored the diagnostic potential of measuring morphological alterations in the white matter by diffusion tensor imaging (DTI)- MRI, compared with the more commonly used assessment of grey matter thickness and volume. READ MORE

5. 3. ­­­Visual assessment of perfusion and metabolism in neurodegenerative dementia

   Author : David Fällmar; Elna-Marie Larsson; Lena Kilander; Mark Lubberink; Ian Law; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Dementia; Neurodegenerative; Brain imaging; Diagnostics; Neuroradiology; Neuroimaging; Demens; Neurodegenerativ; Hjärnavbildning; diagnostik; Neuroradiologi; Neuroimaging; Radiology; Radiologi;

   Abstract : A worldwide demographic shift is currently occurring, with rapidly increasing numbers of elderly individuals. Since the incidence of neurodegenerative disease generally increases with age, this entails an increase in dementia prevalence. READ MORE

6. 4. 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

7. 5. 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