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Article: Fast detection of venous air embolism in Doppler heart sound using the wavelet transform

TitleFast detection of venous air embolism in Doppler heart sound using the wavelet transform
Authors
KeywordsPrecordial doppler ultrasound
Venous air embolism
Wavelet transform
Issue Date1997
PublisherIEEE.
Citation
IEEE Transactions on Biomedical Engineering, 1997, v. 44 n. 4, p. 237-246 How to Cite?
AbstractThe introduction of air bubbles into the systemic circulation can result in significant morbidity. Real-time monitoring of continuous heart sound in patients detected by precordial Doppler ultrasound is, thus, vital for early detection of venous air embolism (VAE) during surgery. In this study, the multiscale feature of wavelet transforms (WT's) is exploited to examine the embolic Doppler heart sound (DHS) during intravenous air injections in dogs. As both humans and dogs share similar physiological conditions, the authors' methods and results for dogs are expected to be applicable to humans. The WT of DHS at scale 2 j(j=1,2) selectively magnified the power of embolic, but not the normal, heart sound. Statistically, the enhanced embolic power was found to be sensitive (P<0.01 at 0.01 ml of injected air) and correlated significantly (P<0.0005, τ=0.83) with the volume of injected air from 0.01 to 0.10 ml. A fast detection algorithm of O(N) complexity with unit complexity constant for VAE was developed (processing speed=8 ms per heartbeat), which confirmed the feasibility of real-time processing for both humans and dogs.
Persistent Identifierhttp://hdl.handle.net/10722/42751
ISSN
2015 Impact Factor: 2.468
2015 SCImago Journal Rankings: 1.201
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChan, BCBen_HK
dc.contributor.authorChan, FHYen_HK
dc.contributor.authorLam, FKen_HK
dc.contributor.authorLui, PWen_HK
dc.contributor.authorPoon, PWFen_HK
dc.date.accessioned2007-03-23T04:31:28Z-
dc.date.available2007-03-23T04:31:28Z-
dc.date.issued1997en_HK
dc.identifier.citationIEEE Transactions on Biomedical Engineering, 1997, v. 44 n. 4, p. 237-246en_HK
dc.identifier.issn0018-9294en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42751-
dc.description.abstractThe introduction of air bubbles into the systemic circulation can result in significant morbidity. Real-time monitoring of continuous heart sound in patients detected by precordial Doppler ultrasound is, thus, vital for early detection of venous air embolism (VAE) during surgery. In this study, the multiscale feature of wavelet transforms (WT's) is exploited to examine the embolic Doppler heart sound (DHS) during intravenous air injections in dogs. As both humans and dogs share similar physiological conditions, the authors' methods and results for dogs are expected to be applicable to humans. The WT of DHS at scale 2 j(j=1,2) selectively magnified the power of embolic, but not the normal, heart sound. Statistically, the enhanced embolic power was found to be sensitive (P<0.01 at 0.01 ml of injected air) and correlated significantly (P<0.0005, τ=0.83) with the volume of injected air from 0.01 to 0.10 ml. A fast detection algorithm of O(N) complexity with unit complexity constant for VAE was developed (processing speed=8 ms per heartbeat), which confirmed the feasibility of real-time processing for both humans and dogs.en_HK
dc.format.extent260440 bytes-
dc.format.extent26624 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.subjectPrecordial doppler ultrasounden_HK
dc.subjectVenous air embolismen_HK
dc.subjectWavelet transformen_HK
dc.titleFast detection of venous air embolism in Doppler heart sound using the wavelet transformen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9294&volume=44&issue=4&spage=237&epage=246&date=1997&atitle=Fast+detection+of+venous+air+embolism+in+Doppler+heart+sound+using+the+wavelet+transformen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/10.563293en_HK
dc.identifier.pmid9125806-
dc.identifier.scopuseid_2-s2.0-0030898265-
dc.identifier.hkuros27012-
dc.identifier.isiWOS:A1997WN99500002-

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