Document Detail


Normal values of the sagittal diameter of the lumbar spine (vertebral body and dural sac) in children measured by MRI.
MedLine Citation:
PMID:  15635468     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The definition of normal values is a prerequisite for the reliable evaluation of abnormality in the lumbar spine, such as spinal canal stenosis or dural ectasia in patients with Marfan syndrome. Values for vertebral body diameter (VBD) and dural sac diameter (DSD) for the lumbar spine have been published in adults. In children, normal values have been established using conventional radiography or myelography, but not by MRI. OBJECTIVE: To define normal values for the sagittal diameter of the vertebral body and dural sac, and to calculate a dural sac ratio (DSR) in the lumbosacral spine (L1-S1) in healthy children using MRI. MATERIALS AND METHODS: A total of 75 healthy children between 6 years and 17 years of age were examined using a sagittal T2-weighted sequence. Sagittal VBD and DSD were measured and a DSR was calculated. This was a retrospective and cross-sectional study. RESULTS: With increasing age there is a significant increase of VBD, a slight increase of DSD, and a slight decrease of DSR. There is no significant sex difference. DSR in healthy children is higher than in healthy adults. CONCLUSIONS: MRI is a reliable method demonstrating the natural shape of the lumbosacral spine and its absolute values. These normal values compare well with those established by conventional radiological techniques. Our data may serve as a reference for defining dural ectasia in children with Marfan syndrome.
Authors:
Walter Knirsch; Claudia Kurtz; Nicole Häffner; Mathias Langer; Deniz Kececioglu
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Publication Detail:
Type:  Journal Article     Date:  2005-01-06
Journal Detail:
Title:  Pediatric radiology     Volume:  35     ISSN:  0301-0449     ISO Abbreviation:  Pediatr Radiol     Publication Date:  2005 Apr 
Date Detail:
Created Date:  2005-03-30     Completed Date:  2005-11-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0365332     Medline TA:  Pediatr Radiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  419-24     Citation Subset:  IM    
Affiliation:
Department of Pediatric Cardiology, University Children's Hospital Freiburg, Freiburg, Germany. walter.knirsch@kispi.unizh.ch
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Age Factors
Child
Cross-Sectional Studies
Dura Mater / anatomy & histology*
Female
Humans
Lumbar Vertebrae / anatomy & histology*
Magnetic Resonance Imaging*
Male
Reference Values
Reproducibility of Results
Retrospective Studies
Sacrum / anatomy & histology
Sex Factors
Spinal Canal / anatomy & histology

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


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