Document Detail


Reduced anisotropy in the middle cerebellar peduncle in Chiari-II malformation.
MedLine Citation:
PMID:  20191336     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Besides supratentorial abnormalities, spina bifida menigomyelocele (SBM) is typically associated with Chiari-II malformation comprising a small cerebellum, which herniates downward due to a shallow posterior fossa. We used diffusion tensor imaging to probe additional microstructural alterations of the major cerebellar white matter tracts, the cerebellar peduncles. A region-of-interest approach was employed in six SBM patients and six matched controls to compare the fractional anisotropy (FA) within the superior, middle, and inferior cerebellar peduncle (SCP, MCP, and ICP, respectively). The FA in the MCP was significantly reduced in the SBM patients (0.44 vs. 0.65, p = 0.002), while there was no significant difference in the other cerebellar peduncles. In the context of numerous supratentorial white matter abnormalities in SBM such as callosal dysplasia, the most likely explanation of reduced FA in the MCP is a reduced fiber density.
Authors:
Christian Herweh; Michael Akbar; Martina Wengenroth; Sabine Heiland; Martin Bendszus; Christoph Stippich
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cerebellum (London, England)     Volume:  9     ISSN:  1473-4230     ISO Abbreviation:  Cerebellum     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-10-05     Completed Date:  2011-01-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101089443     Medline TA:  Cerebellum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  303-9     Citation Subset:  IM    
Affiliation:
Department of Neuroradiology, Heidelberg Medical School, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany. christian_herweh@med.uni-heidelberg.de
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Anisotropy
Arnold-Chiari Malformation / complications,  pathology
Cerebellum / pathology*
Diffusion Tensor Imaging
Female
Humans
Male
Meningomyelocele / complications,  pathology
Young Adult

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