Literature DB >> 21233227

Diffusion tensor imaging of the pediatric spinal cord at 1.5T: preliminary results.

F B Mohamed1, L N Hunter, N Barakat, C-S J Liu, H Sair, A F Samdani, R R Betz, S H Faro, J Gaughan, M J Mulcahey.   

Abstract

BACKGROUND AND
PURPOSE: Recent studies suggest that pediatric subjects as old as 8-years-of-age may have difficulty with the ISNCSCI examinations. Our aim was to investigate DTI parameters of healthy spinal cord in children with noncervical IS for comparison with children with SCI and to prospectively evaluate reliability measures of DTI and to correlate the measures obtained in children with SCI with the ISNCSCI.
MATERIALS AND METHODS: Five controls with thoracic and lumbar IS and 5 children with cervical SCI were imaged twice by using a single-shot echo-planar diffusion-weighted sequence. Axial imaging was performed to cover the entire cervical spinal cord in controls. For the SCI subjects, 2 vertebral bodies above and below the injury were imaged. FA and D values were obtained at different levels of the cervical spinal cord. All subjects with SCI had undergone ISNCSCI clinical examinations. Statistical analysis was performed to access differences of the DTI indices between the controls and SCI subjects, reproducibility measurements, and correlations between DTI and ISNCSCI.
RESULTS: Subjects with SCI showed reduced FA and increased D values compared with controls. Test-retest reproducibility showed good ICC coefficients in all the DTI index values among controls (≥0.9), while the SCI group showed moderate ICC (≥0.77). There were statistically significant correlations between the various DTI indices and ISNCSCI scores.
CONCLUSIONS: Preliminary DTI indices in children were determined and showed good reproducibility. Reduced FA and increased D values were seen in children with SCI in comparison with controls and showed good clinical correlation with ISNCSCI examinations.

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Year:  2011        PMID: 21233227      PMCID: PMC7965715          DOI: 10.3174/ajnr.A2334

Source DB:  PubMed          Journal:  AJNR Am J Neuroradiol        ISSN: 0195-6108            Impact factor:   3.825


  14 in total

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3.  A simplified method to measure the diffusion tensor from seven MR images.

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4.  The International Standards for Neurological Classification of Spinal Cord Injury: reliability of data when applied to children and youths.

Authors:  M J Mulcahey; J Gaughan; R R Betz; K J Johansen
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5.  Apparent diffusion coefficient and fractional anisotropy in spinal cord: age and cervical spondylosis-related changes.

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6.  Intra-rater agreement of the anorectal exam and classification of injury severity in children with spinal cord injury.

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  20 in total

1.  Diffusion tensor imaging of the normal pediatric spinal cord using an inner field of view echo-planar imaging sequence.

Authors:  N Barakat; F B Mohamed; L N Hunter; P Shah; S H Faro; A F Samdani; J Finsterbusch; R Betz; J Gaughan; M J Mulcahey
Journal:  AJNR Am J Neuroradiol       Date:  2012-02-02       Impact factor: 3.825

2.  Hot topics in functional neuroradiology.

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4.  Pulse-triggered DTI sequence with reduced FOV and coronal acquisition at 3T for the assessment of the cervical spinal cord in patients with myelitis.

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5.  Diffusion Tensor Imaging of the Normal Cervical and Thoracic Pediatric Spinal Cord.

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6.  Diffusion tensor imaging to guide surgical planning in intramedullary spinal cord tumors in children.

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7.  Subject-specific regional measures of water diffusion are associated with impairment in chronic spinal cord injury.

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Review 10.  The current state-of-the-art of spinal cord imaging: methods.

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