Spinal subarachnoid space tapering in patients with syringomyelia.

MedStar author(s):
Citation: Neuroradiology Journal. 32(5):382-385, 2019 Oct.PMID: 31159654Institution: MedStar Washington Hospital CenterDepartment: RadiologyForm of publication: Journal ArticleMedline article type(s): Journal ArticleSubject headings: *Subarachnoid Space/su [Surgery] | *Syringomyelia/su [Surgery] | Adolescent | Adult | Aged | Arnold-Chiari Malformation/pa [Pathology] | Arnold-Chiari Malformation/su [Surgery] | Case-Control Studies | Cervical Vertebrae | Child | Child, Preschool | Dura Mater/pa [Pathology] | Female | Humans | Magnetic Resonance Imaging | Male | Middle Aged | Retrospective Studies | Subarachnoid Space/pa [Pathology] | Syringomyelia/pa [Pathology] | Young AdultYear: 2019ISSN:
  • 1971-4009
Name of journal: The neuroradiology journalAbstract: BACKGROUND AND PURPOSE: Cervical spine tapering affects cerebrospinal fluid dynamics. Cervical spine taper ratios derived from anteroposterior diameters reportedly differ between patients with syringomyelia and controls. We attempted to verify the differences in diameter and to show differences in cross-sectional area between syringomyelia and controls.CONCLUSIONS: Cervical spine anteroposterior diameter tapering and dural sac cross-sectional areas tapering differ between syringomyelia patients and controls.METHODS: Cervical spine magnetic resonance images in syringomyelia patients (idiopathic or Chiari I related) and control patients were examined. In each subject, the anteroposterior diameter of the spinal canal was measured at each cervical level, and C1-C4, C4-C7, and C1-C7 taper ratios were calculated. Differences in taper ratio between groups were tested for statistical significance with the t-test. Cross-sectional areas of the spinal canal were measured at each cervical spinal level, and tapering was calculated.RESULTS: Eighteen patients with idiopathic syringomyelia, 28 with Chiari I, and 29 controls were studied. Chiari and syringomyelia patients had significantly steeper diameter-based taper ratios than controls. The dural sac areas tapered proportionally with the diameter-based taper ratio in all groups.All authors: Haughton V, Madan N, Rutan E, Zea ROriginally published: Neuroradiology Journal. :1971400919854695, 2019 Jun 04Fiscal year: FY2020Fiscal year of original publication: FY2019Digital Object Identifier: Date added to catalog: 2019-06-21
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Journal Article MedStar Authors Catalog Article 31159654 Available 31159654

BACKGROUND AND PURPOSE: Cervical spine tapering affects cerebrospinal fluid dynamics. Cervical spine taper ratios derived from anteroposterior diameters reportedly differ between patients with syringomyelia and controls. We attempted to verify the differences in diameter and to show differences in cross-sectional area between syringomyelia and controls.

CONCLUSIONS: Cervical spine anteroposterior diameter tapering and dural sac cross-sectional areas tapering differ between syringomyelia patients and controls.

METHODS: Cervical spine magnetic resonance images in syringomyelia patients (idiopathic or Chiari I related) and control patients were examined. In each subject, the anteroposterior diameter of the spinal canal was measured at each cervical level, and C1-C4, C4-C7, and C1-C7 taper ratios were calculated. Differences in taper ratio between groups were tested for statistical significance with the t-test. Cross-sectional areas of the spinal canal were measured at each cervical spinal level, and tapering was calculated.

RESULTS: Eighteen patients with idiopathic syringomyelia, 28 with Chiari I, and 29 controls were studied. Chiari and syringomyelia patients had significantly steeper diameter-based taper ratios than controls. The dural sac areas tapered proportionally with the diameter-based taper ratio in all groups.

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