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CZECH MEDICAL ASSOCIATION J. Ev. PURKYNĚ |
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Česky / Czech version | Čes. a slov. Neurol. Neurochir., 63/96, 2000, No. 4, p. 215–218. |
Relationship
of the Size of the Transverse Area of the Spinal Cord and the Functional Score in
Spondylogenic Cervical Myelopathy Benešová Y. 1 , Niedermayerová I. 1 , Kadaňka Z. 1 , Jan J. 2 , Paluch R. 2 , Prokeš B. 3 1 Neurologická klinika FN, Brno-Bohunice 2 VÚT, Ústav biomedicínského inženýrství, Brno 3 Radiodiagnostická klinika FN, Brno-Bohunice |
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Summary: The relationship between the area of the compressed spinal cord and the degree of clinical affliction
in spondylogenic cervical myelopathy is controversial. The authors assessed the transverse area of the
spinal cord in a group of 34 patients with spondylogenic cervical myelopathy and correlated it with the
degree of functional deficiency. The area of the spinal cord was in the whole group on average 64.8 ±
7.9 mm 2 which differs statistically from findings in the normal population. A relationship was found
between the clinical condition expressed by a modified scale of the Japanese orthopaedic association
and the size of the transverse area of the spinal cord. This relationship is less close in mild functional
deficiencies and increases when in more severe, deficiencies. The authors describe also a new method
of assessment of the transverse area of the spinal cord by magnetic resonance in the T2 weighted mode.
The images were processed by automatic analysis. In the first stage they were scanned and s ubsequently
segmentation of the gray images was made according to criteria of brightness tolerance. Thus the
outline of the object was obtained – i.e. of the spinal cord and spinal canal. The binar b itmap which was
thus obtained was subjected in a medium of MATLAB to automatic analysis where the curve differen-
tiated by colouration is closed. The result of the analysis is assessment of the basic geometrical
parameters of the image of the spinal cord.
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