Detection of Myocardial Ischemia Using Hidden Markov Models
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F03%3A00008391" target="_blank" >RIV/00216224:14110/03:00008391 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Detection of Myocardial Ischemia Using Hidden Markov Models
Original language description
The paper deals with detection of myocardial ischemia by analysis of electrophysiological changes within QRS complexes of electrocardiograms (ECG). ECG signals were analysed by continuous wavelet transform (CWT). Time - frequency spectra of QRS complexeswere used as an input of a detection system based on hidden Markov models (HMMs). Parameters of the used HMMs were assessed to recommend their optimal values. The presented results show that HMM analysis of ECGs preprocessed by CWT can be used for earlydetection of myocardial ischemia. Eleven Langendorff perfused rabbit hearts were used to record training and test data to learn Markov models. An average value of resulting sensitivity and specificity of detection system was around 0.9 depending on parameter setting of the models.
Czech name
Detekce ischemie myokardu pomocí Markovových modelů
Czech description
Práce se zabývá detekcí ischemie myokardu pomocí analýzy elektrofyziologických změn uvnitř QRS komplexu elektrokardiogramu. EKG signály byly analyzovány kontinuální vlnkovou transformací. Časově-frekvenční spektra QRS komplexů byla použita jako vstup dodetekčního systému založeného na Markovových modelech. Do studie bylo zahrnuto 11 srdcí králíka perfundovaných dle Langendorffa.
Classification
Type
D - Article in proceedings
CEP classification
ED - Physiology
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA102%2F01%2F1494" target="_blank" >GA102/01/1494: Optical recording of action potentials and its application in cardiology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of 25th Annual International Conference IEEE EMBS
ISBN
0-7803-7789-3
ISSN
1094-687X
e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
IEEE EMBS
Place of publication
Cancún, Mexico
Event location
Cancún
Event date
Jan 1, 2003
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000189395300745