Document Detail


Pathological aging of the brain: an overview.
MedLine Citation:
PMID:  16041289     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The number of elderly people is increasing rapidly and, therefore, an increase in neurodegenerative and cerebrovascular disorders causing dementia is expected. Alzheimer disease (AD) is the most common cause of dementia. Vascular dementia, dementia with Lewy bodies, and frontotemporal dementia are the most frequent causes after AD, but a large proportion of patients have a combination of degenerative and vascular brain pathology. Characteristic magnetic resonance (MR) imaging findings can contribute to the identification of different diseases causing dementia. The MR imaging protocol should include axial T2-weighted images (T2-WI), axial fluid-attenuated inversion recovery (FLAIR) or proton density-weighted images, and axial gradient-echo T2*-weighted images, for the detection of cerebrovascular pathology. Structural neuroimaging in dementia is focused on detection of brain atrophy, especially in the medial temporal lobe, for which coronal high resolution T1-weighted images perpendicular to the long axis of the temporal lobe are extremely important. Single photon emission computed tomography and positron emission tomography may have added value in the diagnosis of dementia and may become more important in the future, due to the development of radioligands for in vivo detection of AD pathology. New functional MR techniques and serial volumetric imaging studies to identify subtle brain abnormalities may also provide surrogate markers for pathologic processes that occur in diseases causing dementia and, in conjunction with clinical evaluation, may enable a more rigorous and early diagnosis, approaching the accuracy of neuropathology.
Authors:
António J Bastos Leite; Philip Scheltens; Frederik Barkhof
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Topics in magnetic resonance imaging : TMRI     Volume:  15     ISSN:  0899-3459     ISO Abbreviation:  Top Magn Reson Imaging     Publication Date:  2004 Dec 
Date Detail:
Created Date:  2005-07-25     Completed Date:  2005-11-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8913523     Medline TA:  Top Magn Reson Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  369-89     Citation Subset:  IM    
Affiliation:
Department of Radiology, Vrije Universiteit (VU) Medical Center, Amsterdam, the Netherlands. A.bastosleite@vumc.nl
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MeSH Terms
Descriptor/Qualifier:
Aging / pathology*
Alzheimer Disease / diagnosis
Brain / pathology*
Dementia / classification,  pathology*
Dementia, Vascular / diagnosis
Diagnosis, Differential
Humans
Lewy Body Disease / diagnosis
Magnetic Resonance Imaging / methods*
Parkinson Disease / diagnosis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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