Matches in SemOpenAlex for { <https://semopenalex.org/work/W2043480770> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2043480770 endingPage "936" @default.
- W2043480770 startingPage "925" @default.
- W2043480770 abstract "Atrial fibrillation is a very common cardiovascular disease in clinical practice. One relevant issue to understand its pathophysiological mechanisms is the analysis and interpretation of atrial electrograms (AEG). To study these signals properly, ventricular activity has to be removed from the AEG. In this work, a new application of independent component analysis (ICA) to the AEG is presented, where ventricular activity is removed from atrial epicardial recordings making use of only one reference lead. Therefore the technique is suitable when multi-lead recordings are unavailable as in atrial implantable cardioverter defibrilators. In addition to the proposed new methodology this work also presents the first comparative study, making use of unipolar epicardial AEGs, among the ICA-based technique, template matching and subtraction (TMS), and adaptive ventricular cancellation (AVC) on a database of 20 patients. A performance comparative analysis was carried out by evaluating epicardial atrial waveform similarity (S) and ventricular depolarization reduction (VDR) as a function of atrial rhythm regularity on a beat-by-beat basis. Results indicate that, when the epicardial atrial rhythm is quite organized, ICA is able to preserve the atrial waveform very precisely and better than the other methods (median S = 99.64% ± 0.31% in contrast to 95.18% ± 2.71% for TMS and 94.76% ± 4.12% for AVC). Moreover, ventricular reduction is the best for ICA (median VDR = 6.32 ± 4.41 dB in contrast to 4.98 ± 4.48 dB for TMS and 4.12 ± 2.72 dB for AVC). On the other hand, when the atrial activity is disorganized, TMS notably improves performance (S = 97.72% ± 1.87%), but ICA still is the best in waveform preservation (S = 98.22% ± 1.53%) whereas AVC remains similar (S = 93.74% ± 4.38%). In conclusion, ICA can be considered as notably the best approach to reduce ventricular activity from unipolar atrial electrograms in organized atrial arrhythmias. On the other hand, both TMS and ICA give quite similar results when the atrial arrhythmia is disorganized." @default.
- W2043480770 created "2016-06-24" @default.
- W2043480770 creator A5027707636 @default.
- W2043480770 creator A5031553387 @default.
- W2043480770 date "2007-07-19" @default.
- W2043480770 modified "2023-10-17" @default.
- W2043480770 title "Comparative study of methods for ventricular activity cancellation in atrial electrograms of atrial fibrillation" @default.
- W2043480770 cites W1586692934 @default.
- W2043480770 cites W1965203337 @default.
- W2043480770 cites W1972209336 @default.
- W2043480770 cites W2009603268 @default.
- W2043480770 cites W2021008169 @default.
- W2043480770 cites W2029045834 @default.
- W2043480770 cites W2029838243 @default.
- W2043480770 cites W2031751314 @default.
- W2043480770 cites W2036816448 @default.
- W2043480770 cites W2052312443 @default.
- W2043480770 cites W2089196317 @default.
- W2043480770 cites W2105760329 @default.
- W2043480770 cites W2108557834 @default.
- W2043480770 cites W2110075977 @default.
- W2043480770 cites W2114775432 @default.
- W2043480770 cites W2118117461 @default.
- W2043480770 cites W2119174768 @default.
- W2043480770 cites W2119270840 @default.
- W2043480770 cites W2119647652 @default.
- W2043480770 cites W2121724000 @default.
- W2043480770 cites W2124033264 @default.
- W2043480770 cites W2140025687 @default.
- W2043480770 cites W2143259181 @default.
- W2043480770 cites W2145432049 @default.
- W2043480770 cites W2149092351 @default.
- W2043480770 cites W2150647527 @default.
- W2043480770 cites W2151074096 @default.
- W2043480770 cites W2160584460 @default.
- W2043480770 cites W2162273778 @default.
- W2043480770 cites W2165207661 @default.
- W2043480770 cites W2168454921 @default.
- W2043480770 cites W2324628668 @default.
- W2043480770 cites W2614051918 @default.
- W2043480770 cites W4205778870 @default.
- W2043480770 doi "https://doi.org/10.1088/0967-3334/28/8/014" @default.
- W2043480770 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17664683" @default.
- W2043480770 hasPublicationYear "2007" @default.
- W2043480770 type Work @default.
- W2043480770 sameAs 2043480770 @default.
- W2043480770 citedByCount "46" @default.
- W2043480770 countsByYear W20434807702012 @default.
- W2043480770 countsByYear W20434807702013 @default.
- W2043480770 countsByYear W20434807702014 @default.
- W2043480770 countsByYear W20434807702015 @default.
- W2043480770 countsByYear W20434807702017 @default.
- W2043480770 countsByYear W20434807702018 @default.
- W2043480770 countsByYear W20434807702019 @default.
- W2043480770 countsByYear W20434807702020 @default.
- W2043480770 countsByYear W20434807702021 @default.
- W2043480770 crossrefType "journal-article" @default.
- W2043480770 hasAuthorship W2043480770A5027707636 @default.
- W2043480770 hasAuthorship W2043480770A5031553387 @default.
- W2043480770 hasConcept C126322002 @default.
- W2043480770 hasConcept C164705383 @default.
- W2043480770 hasConcept C2779161974 @default.
- W2043480770 hasConcept C2780074459 @default.
- W2043480770 hasConcept C71924100 @default.
- W2043480770 hasConceptScore W2043480770C126322002 @default.
- W2043480770 hasConceptScore W2043480770C164705383 @default.
- W2043480770 hasConceptScore W2043480770C2779161974 @default.
- W2043480770 hasConceptScore W2043480770C2780074459 @default.
- W2043480770 hasConceptScore W2043480770C71924100 @default.
- W2043480770 hasIssue "8" @default.
- W2043480770 hasLocation W20434807701 @default.
- W2043480770 hasLocation W20434807702 @default.
- W2043480770 hasOpenAccess W2043480770 @default.
- W2043480770 hasPrimaryLocation W20434807701 @default.
- W2043480770 hasRelatedWork W1967841144 @default.
- W2043480770 hasRelatedWork W2018480046 @default.
- W2043480770 hasRelatedWork W2064495796 @default.
- W2043480770 hasRelatedWork W2319489406 @default.
- W2043480770 hasRelatedWork W2333279585 @default.
- W2043480770 hasRelatedWork W2364196197 @default.
- W2043480770 hasRelatedWork W2603808924 @default.
- W2043480770 hasRelatedWork W2763816051 @default.
- W2043480770 hasRelatedWork W2793053827 @default.
- W2043480770 hasRelatedWork W2889073610 @default.
- W2043480770 hasVolume "28" @default.
- W2043480770 isParatext "false" @default.
- W2043480770 isRetracted "false" @default.
- W2043480770 magId "2043480770" @default.
- W2043480770 workType "article" @default.