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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-9-16
pubmed:abstractText
In vivo imaging of structural changes in the brain of patients with encephalitis has become an important aid in diagnostic and therapeutic procedures. Diffusion-weighted magnetic resonance imaging (DWI) was employed to quantitate regional and whole-brain diffusion-weighted MRI changes in a hamster model for acute flavivirus encephalitis. The regional apparent diffusion coefficient (ADC) was determined in hyperintense regions seen on T2-weighted images (i.e., the thalamic area and the temporal lobe), but anatomical variation and structural heterogeneity of encephalitic lesions severely impeded the placement of regions of interest (ROI). Therefore, quantitative whole-brain diffusion-weighted imaging was carried out and revealed a significantly reduced ADC (P = .02) in the brain of hamsters with acute encephalitis (n = 7) as compared to that of healthy, uninfected controls (n = 3). Furthermore, the ADC histogram demonstrated a reduced peak height and center of gravity during the acute encephalitis. Our findings could further support the use of diffusion-weighted imaging for in vivo monitoring of acute flavivirus encephalitis and for the study of therapeutic approaches.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1355-0284
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
255-9
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
In vivo monitoring of acute flavivirus (Modoc) encephalitis with regional and whole-brain quantitative diffusion magnetic resonance imaging.
pubmed:affiliation
Department of Neurology, Ruprecht-Karls-University Heidelberg, Germany. jsellner@arcor.de
pubmed:publicationType
Journal Article