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Brain White Matter Abnormality Induced by Chronic Spinal Cord Injury in the Pediatric Population: A Preliminary Tract-based Spatial Statistic Study.
Fisher, Joshua; Alizadeh, Mahdi; Middleton, Devon; Matias, Caio M; Mulcahey, M J; Calhoun-Thielen, Christina; Mohamed, Feroze B; Krisa, Laura.
Afiliación
  • Fisher J; Jefferson Integrated Magnetic Resonance Imaging Center, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
  • Alizadeh M; Jefferson Integrated Magnetic Resonance Imaging Center, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
  • Middleton D; Department of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
  • Matias CM; Jefferson Integrated Magnetic Resonance Imaging Center, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
  • Mulcahey MJ; Department of Neurosurgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
  • Calhoun-Thielen C; Department of Occupational Therapy, Thomas Jefferson University, Philadelphia, Pennsylvania.
  • Mohamed FB; Department of Occupational Therapy, Thomas Jefferson University, Philadelphia, Pennsylvania.
  • Krisa L; Jefferson Integrated Magnetic Resonance Imaging Center, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
Top Spinal Cord Inj Rehabil ; 27(4): 1-13, 2021.
Article en En | MEDLINE | ID: mdl-34866884
ABSTRACT

Objectives:

Tract-based spatial statistics (TBSS) is a diffusion tensor imaging (DTI)-based processing technique that aims to improve the objectivity and interpretability of analysis of multisubject diffusion imaging studies. This study used TBSS to measure quantitative changes in brain white matter structures following spinal cord injury (SCI).

Methods:

Eighteen SCI subjects aged 8-20 years old (mean age, 16.5 years) were scanned using a conventional single-shot EPI DTI protocol using a 3.0T Siemens MR scanner. All participants underwent a complete International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) examination to determine the level and severity of injury. Five participants were classified as American Spinal Injury Association Impairment Scale (AIS) A, nine as AIS B, and four as AIS C/D. Imaging parameters used for data collection were as follows 20 directions, b = 1000 s/mm2, voxel size = 1.8 mm x 1.8 mm, slice thickness = 5 mm, TE = 95 ms, TR = 4300 ms, slices = 30, TA = 445 min. To generate TBSS, nonparametric permutation tests were used for voxel-wise statistical analysis of the fractional anisotropy (FA) skeletons between AIS groups. A two-tailed t test was applied to extract voxels with significant differences at p < .05.

Results:

Notable significant changes occurred throughout the corticospinal, spinothalamic, and dorsal column/medial lemniscus tracts. Altered regions in the temporal, occipital, and parietal lobes were also identified.

Conclusion:

These results suggest that white matter structures are altered differently between people with different AIS classifications. TBSS has the potential to serve as a screening tool to identify white matter changes in regions of interest.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Traumatismos de la Médula Espinal / Sustancia Blanca Tipo de estudio: Prognostic_studies Límite: Adolescent / Adult / Child / Humans Idioma: En Revista: Top Spinal Cord Inj Rehabil Año: 2021 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Traumatismos de la Médula Espinal / Sustancia Blanca Tipo de estudio: Prognostic_studies Límite: Adolescent / Adult / Child / Humans Idioma: En Revista: Top Spinal Cord Inj Rehabil Año: 2021 Tipo del documento: Article
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