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Article: Validation of an adaptive signal enhancer in intraoperative somatosensory evoked potentials monitoring

TitleValidation of an adaptive signal enhancer in intraoperative somatosensory evoked potentials monitoring
Authors
Issue Date2004
PublisherLippincott Williams & Wilkins. The Journal's web site is located at http://www.clinicalneurophys.com
Citation
Journal Of Clinical Neurophysiology, 2004, v. 21 n. 6, p. 409-417 How to Cite?
AbstractThe conventional approach of ensemble averaging in intraoperative somatosensory evoked potentials (SEP) monitoring requires more than 500 trials to extract a reliable waveform for neurologic diagnosis. Previous studies showed that an adaptive signal enhancer (ASE) could increase the signal-to-noise ratio of input signals. This study assessed the accuracy and efficiency of the ASE in the extraction of neurologic normal human and abnormal rat SEP. Cortical and subcortical SEP were taken from 16 subjects undergoing scoliosis surgery. SEP extracted by ASE were compared with those obtained with 500-trial averaging in terms of peak latency, amplitude, and waveforms using correlation coefficients. An animal study composed of 18 rats was used to test the ASE in detecting abnormal SEP changes due to spinal cord compression. The results demonstrate the accuracy of ASE by showing very high correlations between ASE-processed SEP and ensemble averaging - processed SEP in waveforms, peak latencies, and amplitudes. The results also show the efficiency of the ASE in extracting SEP waveforms from 50 input trials, which provided waveforms of sufficiently high quality and latency/amplitude measurements equivalent to those obtained in 500 trials of conventional ensemble averaging. Because of its fast extraction ability, adaptive signal enhancement could be an appropriate alternative to conventional ensemble averaging in intraoperative spinal cord monitoring.
Persistent Identifierhttp://hdl.handle.net/10722/170059
ISSN
2015 Impact Factor: 1.337
2015 SCImago Journal Rankings: 0.578
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLam, BSCen_US
dc.contributor.authorHu, Yen_US
dc.contributor.authorLu, WWen_US
dc.contributor.authorLuk, KDKen_US
dc.date.accessioned2012-10-30T06:05:04Z-
dc.date.available2012-10-30T06:05:04Z-
dc.date.issued2004en_US
dc.identifier.citationJournal Of Clinical Neurophysiology, 2004, v. 21 n. 6, p. 409-417en_US
dc.identifier.issn0736-0258en_US
dc.identifier.urihttp://hdl.handle.net/10722/170059-
dc.description.abstractThe conventional approach of ensemble averaging in intraoperative somatosensory evoked potentials (SEP) monitoring requires more than 500 trials to extract a reliable waveform for neurologic diagnosis. Previous studies showed that an adaptive signal enhancer (ASE) could increase the signal-to-noise ratio of input signals. This study assessed the accuracy and efficiency of the ASE in the extraction of neurologic normal human and abnormal rat SEP. Cortical and subcortical SEP were taken from 16 subjects undergoing scoliosis surgery. SEP extracted by ASE were compared with those obtained with 500-trial averaging in terms of peak latency, amplitude, and waveforms using correlation coefficients. An animal study composed of 18 rats was used to test the ASE in detecting abnormal SEP changes due to spinal cord compression. The results demonstrate the accuracy of ASE by showing very high correlations between ASE-processed SEP and ensemble averaging - processed SEP in waveforms, peak latencies, and amplitudes. The results also show the efficiency of the ASE in extracting SEP waveforms from 50 input trials, which provided waveforms of sufficiently high quality and latency/amplitude measurements equivalent to those obtained in 500 trials of conventional ensemble averaging. Because of its fast extraction ability, adaptive signal enhancement could be an appropriate alternative to conventional ensemble averaging in intraoperative spinal cord monitoring.en_US
dc.languageengen_US
dc.publisherLippincott Williams & Wilkins. The Journal's web site is located at http://www.clinicalneurophys.comen_US
dc.relation.ispartofJournal of Clinical Neurophysiologyen_US
dc.rightsJournal of Clinical Neurophysiology. Copyright © Lippincott Williams & Wilkins.-
dc.subject.meshAdolescenten_US
dc.subject.meshAdulten_US
dc.subject.meshAlgorithmsen_US
dc.subject.meshAnimalsen_US
dc.subject.meshChilden_US
dc.subject.meshEvoked Potentials, Somatosensoryen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMonitoring, Intraoperative - Methods - Standardsen_US
dc.subject.meshProspective Studiesen_US
dc.subject.meshRatsen_US
dc.subject.meshReaction Timeen_US
dc.subject.meshReproducibility Of Resultsen_US
dc.subject.meshScoliosis - Surgeryen_US
dc.subject.meshSignal Processing, Computer-Assisteden_US
dc.subject.meshSpinal Cord Compression - Diagnosis - Prevention & Controlen_US
dc.titleValidation of an adaptive signal enhancer in intraoperative somatosensory evoked potentials monitoringen_US
dc.typeArticleen_US
dc.identifier.emailHu, Y:yhud@hku.hken_US
dc.identifier.emailLu, WW:wwlu@hku.hken_US
dc.identifier.emailLuk, KDK:hcm21000@hku.hken_US
dc.identifier.authorityHu, Y=rp00432en_US
dc.identifier.authorityLu, WW=rp00411en_US
dc.identifier.authorityLuk, KDK=rp00333en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1097/01.WNP.0000148118.16547.A6en_US
dc.identifier.pmid15622127-
dc.identifier.scopuseid_2-s2.0-11344274646en_US
dc.identifier.hkuros104381-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-11344274646&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume21en_US
dc.identifier.issue6en_US
dc.identifier.spage409en_US
dc.identifier.epage417en_US
dc.identifier.isiWOS:000226186600004-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLam, BSC=36747918300en_US
dc.identifier.scopusauthoridHu, Y=7407116091en_US
dc.identifier.scopusauthoridLu, WW=7404215221en_US
dc.identifier.scopusauthoridLuk, KDK=7201921573en_US

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