Morphology and measurements of the cervical spinal cord in computer-assisted myelography

Thirty-six control subjects had computer assisted myelography (CAM) using the EMI CT 5005 scanner. The normal cervical cord is elliptical, more circular at the upper and lower ends and flatter in the mid-segments. Asymptomatic cord deformities, usually mild, were present in nine subjects (25%). Four...

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Bibliographic Details
Published in:Neuroradiology 1985-09, Vol.27 (5), p.399-402
Main Authors: YU, Y. L, DU BOULAY, G. H, STEVENS, J. M, KENDALL, B. E
Format: Article
Language:English
Subjects:
Adult
Aged
Biological and medical sciences
Female
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Middle Aged
Myelography
Nervous system
Radiodiagnosis. Nmr imagery. Nmr spectrometry
Reference Values
Spinal Cord - diagnostic imaging
Tomography, X-Ray Computed
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Summary:Thirty-six control subjects had computer assisted myelography (CAM) using the EMI CT 5005 scanner. The normal cervical cord is elliptical, more circular at the upper and lower ends and flatter in the mid-segments. Asymptomatic cord deformities, usually mild, were present in nine subjects (25%). Four measurements, namely, sagittal diameter (APD), transverse diameter (TD), area (a) and circumference (c) were made and two more parameters calculated i.e. APD/TD ratio and circularity (= 4 pi a/c2). These control values form the basis of qualitative and quantitative assessment of cord deformity. When cord measurements are to be used, control values should be obtained for each scanner and procedures should be standardized.
ISSN:0028-3940
1432-1920
DOI:10.1007/bf00327602