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Search: WFRF:(Hnatkova K)

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  • Hnatkova, K, et al. (author)
  • Computer package generating non-invasive atrial electrograms: Detection and subtraction of QRS and T waves
  • 1998
  • In: Computers in Cardiology. - 0780352009 ; 25, s. 533-536
  • Conference paper (peer-reviewed)abstract
    • Computerized systems to localize specific patterns appearing in ECG signal, such as the QRS complex and T wave usually utilize predefined templates. Where the signal is not clean, such as during atrial fibrillation (AF), analysis based on self-similarities of the ECG signal appears to be more stable. The authors describe a software package which uses self-similarity techniques to allow the subtraction of ventricular signals during AF. The dataset used in this study was Holter ECG recorded in 23 patients (11 male, age 61.1±8.7 years) with chronic AF using an Altair 6500 digital Holter (Burdick Inc., 3 channels, 1 kHz sampling). Self-similarities between corresponding QRS and corresponding T windows were assessed using Spearman correlation coefficients, utilising the commercial software derived fiducial point but with shifted windows to overcome possible minor imprecision thereof. A linear order algorithm successfully subtracted 87% of QRS's and 67% of T waves.
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  • Malik, M, et al. (author)
  • Universal Correction for QT/RR Hysteresis
  • 2016
  • In: Drug safety. - : Springer Science and Business Media LLC. - 1179-1942 .- 0114-5916. ; 39:6, s. 577-588
  • Journal article (peer-reviewed)
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