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Japanese

MRI Findings in the Cervical Spine of Healthy Volunteers Kouichiro Toyoda 1 , Toshihiko Taguchi 1 , Kazuo Kaneko 1 , Yoshihiko Kato 1 , Eiji Azuma1 1 , Shinya Kawai 1 , Shuuichi Yamauchi 2 1Faculty of Medicine,Orthopedic Surgety,Yamaguchi University School of Medicine 2Faculty of Medicine,Radiology,Yamaguchi University School of Medicine Keyword: magnetic resonance imaging(核磁気共鳴画像) , cervical spine(頚椎) , healthy volunteer(健常者) pp.461-466
Published Date 2004/4/1
DOI https://doi.org/10.11477/mf.1408100417
  • Abstract
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We examined the MRI images of the cervical spine obtained in 117 normal volunteers. There were 66males and 51 females,and their age range was 7-72 years old(mean age:40 years). We evaluated the MRI images,for disc degeneration as manifested by using low signal intensity,posterior disc protrusion,narrowing of the disc space,foraminal stenosis,and hypertrophy of the ligamentum flavum. MRI equipment used was a SIGNA 1.5T machine(GE),and sagittal T2-weighted images(TR 4000ms,TE 100ms,Matrix 512×512,FOV 24cm×24cm)and axial T1-weighted images(TR 500ms,TE 10ms,Matrix 512×512,FOV 20cm×20cm)were acquired. The evidence of degeneration of the cervical spine increased linearly with age,especially from 60 years of age onward. Disc degeneration was present in 67%of the disc in men and in 50%of the discs in the females under 20 years old. Narrowing of the disc space was present in 52%,posterior disc protrusion was present in 32%,foraminal stenosis was present in 13%,and hypertrophy of ligamentum flavum was present in 22%. Compression of the dural sac was observed in 44%,but spinal cord compression was observed only in 8%. The results show that care must be exercised when for interpreting the MRI findings in patients with symptomatic disorders of the cervical spine.


Copyright © 2004, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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