Influence of noise on wave boundary recognition by ECG measurement programs. Recommendations for preprocessing

Computers and Biomedical Research, an International Journal
J L WillemsP W Macfarlane

Abstract

In the international cooperative project entitled "Common Standards for Quantitative Electrocardiography" (CSE) systematic noise tests have been performed in order to compare measurement results of electrocardiographic computer programs under degraded operational conditions and to develop recommendations for preprocessing and measurement strategies. The influence of seven different high- and low-frequency noise types on the recognition of P, QRS, and T wave onsets and offsets was investigated. The analysis was performed on 160 electrocardiograms derived from two sets of 10 cases each, by eight electrocardiographic and six vectorcardiographic computer programs. The stability and precision of these programs were tested with respect to the results obtained (1) in the noise-free recordings and (2) by a group of five cardiologists who have analyzed the recordings previously in a Delphi reviewing process. Increasing levels of high-frequency noise shifted the onsets and offsets of most programs outward. Programs analyzing an averaged beat showed significantly less variability than programs which measure every complex or a selected beat. On the basis of the findings of the present study, a measurement strategy based on selective averag...Continue Reading

References

Feb 1, 1990·Computers and Biomedical Research, an International Journal·C ZywietzP W Macfarlane
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Citations

Feb 1, 1990·Computers and Biomedical Research, an International Journal·C ZywietzP W Macfarlane
Oct 1, 1990·Computers and Biomedical Research, an International Journal·M Ferdjallah, R E Barr
Jan 1, 1996·Journal of Electrocardiology·C ZywietzG Joseph
Apr 29, 1999·Medical Engineering & Physics·I K Daskalov, I I Christov
Sep 21, 2005·BMC Cardiovascular Disorders·Yan SunShankar Muthu Krishnan
Jun 27, 2007·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Paul KligfieldPierre Maison-Blanche
Nov 15, 2006·Pacing and Clinical Electrophysiology : PACE·Katerina HnatkovaMarek Malik
Jan 1, 1992·Journal of Electrocardiology·J H van BemmelG van Herpen
Jan 30, 2009·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Jan A Kors, Gerard van Herpen
Aug 19, 2006·IEEE Transactions on Bio-medical Engineering·Rodrigo V AndreãoJérôme Boudy
Jan 30, 2009·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Joel Q Xue
Jan 1, 1990·Annals of the New York Academy of Sciences·J L Willems
Jan 1, 1989·Medical Informatics = Médecine Et Informatique·F Bessette, L Nguyen
Mar 25, 2008·Journal of Electrocardiology·Bob J A SchijvenaarsJan A Kors

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