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I.はじめに
短潜時体性感覚誘発電位(short latency somatosensoryevoked potential,以下SSEPと略す)は種々の中枢神経系疾患の機能診断に用いられているが,多数例の頸椎,頸髄疾患についての報告は少ない1,2,13).今回われわれは頸椎,頸髄疾患59症例についてSSEPを記録し,各成分の異常度と神経学的所見および放射線学的局在部位との対比を行い,SSEP検査の有用性を正確に評価した.
The purpose of this paper is to evaluate the short latency somatosensory evoked potentials (SSEP) in the diagnosis of cervical lesions. Recordings were obtained from 59 patients with cervical lesions which included 24 cases of cervical spondylosis, 4 cases of disc herniation, 14 cases of OPLL, 4 cases of intramedullary tumor, 7 cases of extramedullary tumor and 6 cases of syringo-myelia. SSEP changes in these cases were classified into three major types as follows : type I ; normal SSEP, type II ; prolongation of interpeak latency, and type III ; absence of the component of SSEP.
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