Dementia MRI: Difference between revisions

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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

Patient Information

Overview

Classification

Causes

Differential Diagnosis

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

  1. 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.

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