TY - GEN
T1 - Computer package generating non-invasive atrial electrograms: Detection and subtraction of QRS and T waves
AU - Hnatkova, K
AU - Waktare, J E P
AU - Meurling, Carl
AU - Nagayoshi, H
AU - Janota, T
AU - Camm, A J
AU - Malik, M
PY - 1998
Y1 - 1998
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/12444338459
U2 - 10.1109/CIC.1998.731920
DO - 10.1109/CIC.1998.731920
M3 - Paper in conference proceeding
SN - 0-7803-5200-9
VL - 25
SP - 533
EP - 536
BT - Computers in Cardiology
PB - IEEE - Institute of Electrical and Electronics Engineers Inc.
T2 - Computers in Cardiology 1998. Annual conference of computers in cardiology
Y2 - 13 September 1998 through 16 September 1998
ER -