Diagnosis
In a study of 122 patients with supratentorial lesions, MEP using electrical stimulation correctly identified lesions in 88.5% of cases, with false negatives predominantly seen in superficial lesions (21.5% missed). [PMID:9532431]
Magnetoelectric stimulation showed correct results in 89.3% of patients, with a notable false-negative rate of 10.7%, particularly affecting superficial lesions (18.6% missed). [PMID:9532431]
Differential Diagnosis
The study highlights that while MEP techniques are reliable for deep lesion assessment, they have limited utility in distinguishing superficial lesions, aiding in differential diagnosis between lesion depths. [PMID:9532431]
References
1 Zentner J, Meyer B. Diagnostic significance of MEP elicited by electrical and magnetoelectric stimulation in acute/subacute supratentorial lesions. Electromyography and clinical neurophysiology 1998. link
1 papers cited of 3 indexed.