Rinsho Seikei Geka Volume 41, Issue 4 (April 2006)
Japanese

The Relationship Between Electrodiagnosis Using Spinal Cord Evoked Potential after Spinal Cord Stimulation and MRI Evaluation for Cervical Myelopathy Tsuyoshi Kato 1 , Keiichiro Shiba 1 , Takayoshi Ueta 1 , Hideki Ohta 1 , Eiji Mori 1 , Kozo Kaji 1 , Itaru Yuge 1 , Osamu Kawano 1 1Department of Orthopaedic Surgery,Spinal Injuries Center Keyword: cervical myelopathy(頚髄症) , Sp(E)-SCEP〔脊髄(電気)刺激-脊髄誘発電位〕 , MRI(核磁気共鳴画像) pp.341-347
Published Date 2006/4/1
DOI https://doi.org/10.11477/mf.1408100284
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We studied the correlation between the site of high intensity spinal cord signals on preoperative sagittal T2 MRIs(T2-high signal)and that of intrdaperative electrophysiological abnormalities for 200 cervical myelopathy cases. We recorded the Sp(E)-SCEPs during posterior cervical laminoplasty operations. In the cases with a T2-high signal at single levels,conduction adnormality matched the site of T2-high signal in 50%,and no conduction abnormalities were detected in 44%. In the cases with a T2-high signal at two levels,conduction abnormality matched the site of T2-high signal in only 11%,and no conduction abnormalities were disclosed in 59%. In the cases with a T2-high signal at three or more levels,conduction abnormalities matched the site of T2-high signal in 8% and no conduction abnormalities were disclosed in 72%. Our study showed a higher correspondence between the MRI finding and conduction abnormalities in the cases with T2-high signal at single levels,although our Sp(E)-SCEP study could not disclose conduction abnormalities in nearly half the cases. False negative findings of Sp(E)-SCEPs may result from the simplified recording technique.


Copyright © 2006, Igaku-Shoin Ltd. All rights reserved.

基本情報

05570433.41.4.jpg
臨床整形外科
41巻4号 (2006年4月)
電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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