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Patent History
  • Application
    US 10/141104 2002-05-07
  • Publication
    US 20030216654 2003-11-20
 
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Published Patent: Bayesian discriminator for rapidly detecting arrhythmias
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TitleBayesian discriminator for rapidly detecting arrhythmias
 
Priority Date2002-05-07 US 10/141104
 
InventorsXu, W.C.
Tse, HF
Chan, FHY
Fung, PCW
Lau, CP
 
Issue Date2003
 
CitationUS Published patent application US 20030216654. Washington, DC: US Patent and Trademark Office (USPTO), 2003 [How to Cite?]
 
AbstractA method for accurate and rapid automated detection of atrial fibrillation (AF), sinus rhythm (SF), and atrial flutter (AFL) is disclosed, which allows distinguishing of these cardiac signals with lowered risk of errors by implanted pacemakers and like devices. The method includes training episodes of intra-cardiac signals (called the closed data set CDS) to evaluate five feature parameters with a discriminator classifying the signal into AF, AFL or sinus rhythm (SR). Comparison with the independent decisions of experienced physicians for each episode reveals specificity, accuracy and sensitivity of greater than 97%. Each episode is a window of intracardiac signal of interval 1-2 seconds with the discriminator providing results in less than 0.25 s. In another aspect, the method is resistant to the presence of noise in the data. In yet another aspect, more feature parameters may be used in alternative implementations including for detecting signals other than AF, AFL & SR.
 
DC FieldValue
dc.contributor.inventorXu, W.C.
 
dc.contributor.inventorTse, HF
 
dc.contributor.inventorChan, FHY
 
dc.contributor.inventorFung, PCW
 
dc.contributor.inventorLau, CP
 
dc.date.accessioned2010-09-26T04:15:18Z
 
patents.date.application2002-05-07
 
dc.date.available2010-09-26T04:15:18Z
 
dc.date.issued2003
 
patents.date.priority2002-05-07 US 10/141104
 
patents.date.publication2003-11-20
 
dc.description.abstractA method for accurate and rapid automated detection of atrial fibrillation (AF), sinus rhythm (SF), and atrial flutter (AFL) is disclosed, which allows distinguishing of these cardiac signals with lowered risk of errors by implanted pacemakers and like devices. The method includes training episodes of intra-cardiac signals (called the closed data set CDS) to evaluate five feature parameters with a discriminator classifying the signal into AF, AFL or sinus rhythm (SR). Comparison with the independent decisions of experienced physicians for each episode reveals specificity, accuracy and sensitivity of greater than 97%. Each episode is a window of intracardiac signal of interval 1-2 seconds with the discriminator providing results in less than 0.25 s. In another aspect, the method is resistant to the presence of noise in the data. In yet another aspect, more feature parameters may be used in alternative implementations including for detecting signals other than AF, AFL & SR.
 
patents.description.assigneeXU WEICHAO, ; TSE HUNG-FAT, ; CHAN FRANCIS HY, ; FUNG PETER CHIN WAN, ; LAU CHU-PAK
 
patents.description.ccUS
 
patents.description.countryUnited States of America
 
patents.description.kindA1
 
dc.description.naturepublished_or_final_version
 
patents.identifier.applicationUS 10/141104
 
dc.identifier.citationUS Published patent application US 20030216654. Washington, DC: US Patent and Trademark Office (USPTO), 2003 [How to Cite?]
 
dc.identifier.hkuros95069
 
patents.identifier.publicationUS 20030216654
 
dc.identifier.urihttp://hdl.handle.net/10722/113428
 
dc.languageeng
 
patents.relation.familyAU 2003267503 (A1) 2003-11-11
 
patents.relation.familyWO 03094721 (A1) 2003-11-20
 
dc.relation.isreferencedbyWO 2011126823 (A1) 2011-10-13
 
dc.relation.isreferencedbyUS 2010280576 (A1) 2010-11-04
 
dc.relation.isreferencedbyUS 8311636 (B2) 2012-11-13
 
dc.relation.isreferencedbyUS 2010070001 (A1) 2010-03-18
 
dc.relation.isreferencedbyUS 8233990 (B2) 2012-07-31
 
dc.relation.isreferencedbyUS 2007276441 (A1) 2007-11-29
 
dc.relation.isreferencedbyUS 7853323 (B2) 2010-12-14
 
dc.relation.isreferencedbyUS 2008234973 (A1) 2008-09-25
 
dc.relation.isreferencedbyUS 7877228 (B2) 2011-01-25
 
dc.relation.isreferencedbyUS 8306624 (B2) 2012-11-06
 
dc.relation.isreferencedbyUS 2007255322 (A1) 2007-11-01
 
dc.relation.isreferencedbyUS 7283870 (B2) 2007-10-16
 
dc.relation.isreferencedbyUS 2007021815 (A1) 2007-01-25
 
dc.relation.isreferencedbyUS 7386344 (B2) 2008-06-10
 
dc.relation.isreferencedbyUS 2006036288 (A1) 2006-02-16
 
dc.relation.isreferencedbyUS 7184837 (B2) 2007-02-27
 
dc.relation.isreferencedbyUS 2005060008 (A1) 2005-03-17
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documents
 
dc.titleBayesian discriminator for rapidly detecting arrhythmias
 
dc.typePatent
 
patents.typePatent_published
 
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