Magnetic resonance imaging of Alzheimer's disease.
1. Although dementia is caused by a heterogeneous group of diseases and pathologic states, Alzheimer's disease is the largest cause, estimated to account for 50 to 75% of all dementias. 2. Unfortunately, confirmation of Alzheimer's disease (AD) requires postmortem histologic confirmation; clinical diagnosis prior to death remains one of exclusion. 3. A large number of structural and volumetric MRI studies have noted anatomic and structural changes accompanying AD, including variable degrees of general cortical atrophy. 4. A classic feature reported by many MRI studies is hippocampal and temporal lobe atrophy. 5. White matter hyperintensities on MRI are common, especially in late onset AD although their significance is still controversial. 6. This article reviews the contribution of magnetic resonance to imaging the neuropathologic changes of AD, discussing both advantages and limitations, and summarizing the major findings.
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- Psychiatry
- Magnetic Resonance Imaging
- Humans
- Brain
- Atrophy
- Alzheimer Disease
- 17 Psychology and Cognitive Sciences
- 1109 Neurosciences
- 1103 Clinical Sciences
- 11 Medical and Health Sciences
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Psychiatry
- Magnetic Resonance Imaging
- Humans
- Brain
- Atrophy
- Alzheimer Disease
- 17 Psychology and Cognitive Sciences
- 1109 Neurosciences
- 1103 Clinical Sciences
- 11 Medical and Health Sciences