Digital nerve somatosensory evoked potentials and MRI. Correlation analysis in patients with symptomatic cervical spine disorders.
2008 (English)In: Acta neurologica Scandinavica, ISSN 1600-0404, Vol. 117, no 2, 122-7 p.Article in journal (Refereed) Published
OBJECTIVES: Analysis of the relationship between the symptoms, digital nerve somatosensory evoked potentials (D-SEP) and MRI, in patients with symptomatic cervical spine disorders (CSD). MATERIALS AND METHODS: MRI and D-SEP following electrical stimulation of digits I, III and V in 44 patients. RESULTS: Symptoms in the fingers correlated significantly with disk herniation at the corresponding cervical level and with spinal cord impingement at one or two adjacent rostral segments on MRI. D-SEP was abnormal in 52% of all patients. Among them, the groups with multiple and single level involved on MRI had 62% and 30% of abnormal somatosensory evoked potentials (SEP), respectively. Digit I-SEP abnormality was more often localized at the root level, while digit V-SEP at the spinal cord level above the dorsal nucleus. D-SEP correlated best with compression of the spinal cord at adjacent upper and especially the most rostral (C3-5) levels on MRI. CONCLUSIONS: Accurate correlation of D-SEP and symptoms with MRI is essential for correct localization of lesions in patients with CSD.
Place, publisher, year, edition, pages
2008. Vol. 117, no 2, 122-7 p.
IdentifiersURN: urn:nbn:se:umu:diva-25194DOI: 10.1111/j.1600-0404.2007.00918.xPubMedID: 18184348OAI: oai:DiVA.org:umu-25194DiVA: diva2:229135