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  • Title: [Morphological study of the axial view of the cervical spinal cord by MR images].
    Author: Suzuki M, Shimamura T.
    Journal: Nihon Seikeigeka Gakkai Zasshi; 1994 Jan; 68(1):1-13. PubMed ID: 8120429.
    Abstract:
    To investigate the morphological changes in the cervical spinal cord in patients with cervical myelopathy, we examined the axial anatomy of the cervical spinal cord and the spinal canal using MRI and CT scans. This study involved 35 patients (mean age = 56.8) with cervical myelopathy and 118 adult normal volunteers (mean age = 48.1) as controls. The transverse area of the spinal cord was measured on MR images (T1 images), while the transverse area of the spinal canal was measured on CT. In normal subjects, the transverse area, the sagittal diameter, and the coronal diameter of the spinal cord showed a significant positive correlation with body height, and a significant negative correlation with age. No significant difference was identified between males and females. The transverse area, the sagittal diameter, the coronal diameter, and the ratio of the sagittal/coronal diameter of the spinal cord and the spinal canal showed significant positive correlations among each other in normal subjects, but no significant correlation was noted in the patients with cervical myelopathy. There was no significant difference between the normal subjects and the patients in the transverse area or in the ratio of the sagittal/coronal diameter of the spinal cord at the levels without cord compression. However, the transverse area of the spinal canal in the patients with myelopathy was significantly smaller than that of normal subjects. In conclusion, a poor or no correlation between the size of the spinal cord and the spinal canal is a frequent finding in patients with myelopathy. Furthermore, this study suggests that patients with myelopathy present a narrow spinal canal more frequently than do normal subjects.
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