Document Detail

High intensity areas on noncontrast T1-weighted MR images in cerebral infarction.
MedLine Citation:
PMID:  2370349     Owner:  NLM     Status:  MEDLINE    
Among 46 noncontrast magnetic resonance studies on patients with cerebral infarction, 11 showed areas of high signal intensity of the involved brain on T1-weighted images. These areas were more frequent in cerebral or cerebellar cortical lesions. Lacunar infarcts in lenticular nuclei, internal capsules, corona radiata, or brain stem did not show any high signal intensity areas on T1-weighted images, whereas the thalamic infarcts did. Sequential studies revealed that these lesions displayed low signal intensity on T2-weighted images at first, and then a high signal intensity area appeared on T1-weighted images. We suggest that these high signal intensity areas on the T1-weighted images in cerebral infarction are caused by hemorrhagic changes at the periphery of the infarction, where blood flow is restored by recanalization or collateral supply.
H Nabatame; N Fujimoto; K Nakamura; Y Imura; Y Dodo; H Fukuyama; J Kimura
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of computer assisted tomography     Volume:  14     ISSN:  0363-8715     ISO Abbreviation:  J Comput Assist Tomogr     Publication Date:    1990 Jul-Aug
Date Detail:
Created Date:  1990-08-17     Completed Date:  1990-08-17     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7703942     Medline TA:  J Comput Assist Tomogr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  521-6     Citation Subset:  IM    
Department of Neurology, Medical Center for Adult Diseases, Shiga, Japan.
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MeSH Terms
Aged, 80 and over
Brain / pathology*
Cerebral Infarction / diagnosis*
Cerebrovascular Circulation
Magnetic Resonance Imaging*
Middle Aged
Erratum In:
J Comput Assist Tomogr 1990 Sep-Oct;14(5):863

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

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