Dementia MRI: Difference between revisions
No edit summary |
No edit summary |
||
| Line 5: | Line 5: | ||
A [[Magnetic resonance imaging|MRI]] is commonly performed, although this modality (as is noted below) may not have optimal sensitivity for the diffuse metabolic changes associated with dementia in a patient who shows no gross neurological problems (such as paralysis or weakness) on neurological exam. MRI may suggest [[normal pressure hydrocephalus]], a potentially reversible cause of dementia, and can yield information relevant to other types of dementia, such as infarction ([[stroke]]) that would point at a vascular type of dementia. | A [[Magnetic resonance imaging|MRI]] is commonly performed, although this modality (as is noted below) may not have optimal sensitivity for the diffuse metabolic changes associated with dementia in a patient who shows no gross neurological problems (such as paralysis or weakness) on neurological exam. MRI may suggest [[normal pressure hydrocephalus]], a potentially reversible cause of dementia, and can yield information relevant to other types of dementia, such as infarction ([[stroke]]) that would point at a vascular type of dementia. | ||
Asymmetric cortical atrophy is often observed in neurodegenerative dementias and sometimes manifests as disproportionate impairments in the functions mediated by the more atrophic regions. | Asymmetric cortical atrophy is often observed in neurodegenerative dementias and sometimes manifests as disproportionate impairments in the functions mediated by the more atrophic regions.<ref name="pmid2283521">{{cite journal |vauthors=Neary D |title=Non Alzheimer's disease forms of cerebral atrophy |journal=J. Neurol. Neurosurg. Psychiatry |volume=53 |issue=11 |pages=929–31 |date=November 1990 |pmid=2283521 |pmc=488269 |doi=10.1136/jnnp.53.11.929 |url=}}</ref> | ||
==References== | ==References== | ||
Revision as of 02:09, 29 September 2020
|
Dementia Microchapters |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: ,Sabeeh Islam, MBBS[2]
Overview
A MRI is commonly performed, although this modality (as is noted below) may not have optimal sensitivity for the diffuse metabolic changes associated with dementia in a patient who shows no gross neurological problems (such as paralysis or weakness) on neurological exam. MRI may suggest normal pressure hydrocephalus, a potentially reversible cause of dementia, and can yield information relevant to other types of dementia, such as infarction (stroke) that would point at a vascular type of dementia.
Asymmetric cortical atrophy is often observed in neurodegenerative dementias and sometimes manifests as disproportionate impairments in the functions mediated by the more atrophic regions.[1]
References
- ↑ Neary D (November 1990). "Non Alzheimer's disease forms of cerebral atrophy". J. Neurol. Neurosurg. Psychiatry. 53 (11): 929–31. doi:10.1136/jnnp.53.11.929. PMC 488269. PMID 2283521.