File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Use of two oximeters to investigate a method of movement artefact rejection using photoplethysmographic signals

TitleUse of two oximeters to investigate a method of movement artefact rejection using photoplethysmographic signals
Authors
KeywordsGastrointestinal surgery
Hypoxaemia
Measurement techniques
Monitoring
Motion artefact
Oximeters
Issue Date1994
PublisherOxford University Press. The Journal's web site is located at http://bja.oxfordjournals.org/
Citation
British Journal Of Anaesthesia, 1994, v. 72 n. 4, p. 388-392 How to Cite?
AbstractOxygen haemoglobin saturations and plethysmograph signal amplitudes were recorded from two oximeters placed on the fingers and toes of 10 patients undergoing oesophagectomy, to assess a method of removing motion artefact from saturation recordings. By examining changes in the plethysmograph amplitude that preceded changes in saturation, episodes of desaturation caused by movement artefacts were removed from the data. The reliability of the method was then determined by scrutinizing two concurrent oximetric profiles from each patient. A total of 1600 h of data were evaluated. Desaturations occurring contemporaneously in both oxygen saturation profiles were presumed genuine, whereas a desaturation occurring in only one of the profiles was classified as artefactual. Our method had a sensitivity of 96%, a positive predictive power of 98% and a specificity of 60%. We modified the method to increase specificity and re-evaluated our data. We found that a useful increase in specificity was associated with a considerable decline in sensitivity.
Persistent Identifierhttp://hdl.handle.net/10722/147168
ISSN
2015 Impact Factor: 5.616
2015 SCImago Journal Rankings: 2.314
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorVisram, ARen_HK
dc.contributor.authorJones, RDMen_HK
dc.contributor.authorIrwin, MGen_HK
dc.contributor.authorBaconShone, Jen_HK
dc.date.accessioned2012-05-29T06:00:32Z-
dc.date.available2012-05-29T06:00:32Z-
dc.date.issued1994en_HK
dc.identifier.citationBritish Journal Of Anaesthesia, 1994, v. 72 n. 4, p. 388-392en_HK
dc.identifier.issn0007-0912en_HK
dc.identifier.urihttp://hdl.handle.net/10722/147168-
dc.description.abstractOxygen haemoglobin saturations and plethysmograph signal amplitudes were recorded from two oximeters placed on the fingers and toes of 10 patients undergoing oesophagectomy, to assess a method of removing motion artefact from saturation recordings. By examining changes in the plethysmograph amplitude that preceded changes in saturation, episodes of desaturation caused by movement artefacts were removed from the data. The reliability of the method was then determined by scrutinizing two concurrent oximetric profiles from each patient. A total of 1600 h of data were evaluated. Desaturations occurring contemporaneously in both oxygen saturation profiles were presumed genuine, whereas a desaturation occurring in only one of the profiles was classified as artefactual. Our method had a sensitivity of 96%, a positive predictive power of 98% and a specificity of 60%. We modified the method to increase specificity and re-evaluated our data. We found that a useful increase in specificity was associated with a considerable decline in sensitivity.en_HK
dc.languageengen_US
dc.publisherOxford University Press. The Journal's web site is located at http://bja.oxfordjournals.org/en_HK
dc.relation.ispartofBritish Journal of Anaesthesiaen_HK
dc.subjectGastrointestinal surgeryen_HK
dc.subjectHypoxaemiaen_HK
dc.subjectMeasurement techniquesen_HK
dc.subjectMonitoringen_HK
dc.subjectMotion artefacten_HK
dc.subjectOximetersen_HK
dc.subject.meshAgeden_US
dc.subject.meshAged, 80 And Overen_US
dc.subject.meshEsophagectomyen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshMovementen_US
dc.subject.meshOximetry - Methodsen_US
dc.subject.meshOxygen - Blooden_US
dc.subject.meshPhotoplethysmographyen_US
dc.subject.meshSensitivity And Specificityen_US
dc.subject.meshTime Factorsen_US
dc.titleUse of two oximeters to investigate a method of movement artefact rejection using photoplethysmographic signalsen_HK
dc.typeArticleen_HK
dc.identifier.emailIrwin, MG: mgirwin@hku.hken_HK
dc.identifier.emailBaconShone, J: johnbs@hku.hken_HK
dc.identifier.authorityIrwin, MG=rp00390en_HK
dc.identifier.authorityBaconShone, J=rp00056en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid8155436-
dc.identifier.scopuseid_2-s2.0-0028221837en_HK
dc.identifier.volume72en_HK
dc.identifier.issue4en_HK
dc.identifier.spage388en_HK
dc.identifier.epage392en_HK
dc.identifier.isiWOS:A1994NG94700004-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridVisram, AR=6602931233en_HK
dc.identifier.scopusauthoridJones, RDM=7501542949en_HK
dc.identifier.scopusauthoridIrwin, MG=7202411076en_HK
dc.identifier.scopusauthoridBaconShone, J=6602137416en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats