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Cerebral blood flow abnormalities in children with sickle cell disease: a systematic review.
MedLine Citation:
PMID:  23419469     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A systematic review was performed to assess whether cerebral blood flow with different imaging modalities could identify brain abnormalities in children with sickle cell disease where structural magnetic resonance imaging and transcranial Doppler velocity appeared normal. A total of 11 studies were identified which reported cerebral blood flow abnormalities alongside structural magnetic resonance imaging or transcranial Doppler velocity abnormalities in patients with sickle cell disease. Potential for bias was assessed with the quality assessment of diagnostic accuracy studies scale in addition to treatment bias. Subjects of each study were categorized into patients with and without stroke. The prevalence of abnormalities for each modality was then separately calculated in each group. The included studies had mostly moderate degrees of bias. The prevalence of blood flow abnormalities compared with structural magnetic resonance imaging abnormalities was equal to or lower in patients with stroke and equal to or greater in patients without stroke. Blood flow abnormalities were more prevalent than transcranial Doppler abnormalities in four studies of patients without stroke and in one study of patients with stroke. The studies suggest that the assessment of cerebral blood flow in sickle cell disease can be of potential value in addressing brain abnormalities at the tissue level; however, further studies are warranted.
Authors:
Amir M Behpour; Prakesh S Shah; David J Mikulis; Andrea Kassner
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pediatric neurology     Volume:  48     ISSN:  1873-5150     ISO Abbreviation:  Pediatr. Neurol.     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508183     Medline TA:  Pediatr Neurol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  188-99     Citation Subset:  IM    
Copyright Information:
Copyright © 2013 Elsevier Inc. All rights reserved.
Affiliation:
Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, Ontario, Canada; Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada.
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