Journal ArticleDOI
Automated High-Speed Analysis of Holter Tapes with Microcomputers
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TLDR
An automated Holtes scanning system based on two microcomputers that detects QRS complexes and measures the QRS durations using computations of first and second derivatives, and can process Holter tapes at 60 times real time and produce printed summaries and 24 h trend plots.Abstract:
We have developed an automated Holtes scanning system based on two microcomputers. One is a preprocessor that detects QRS complexes and measures the QRS durations using computations of first and second derivatives. Thismicrocomputer interfaces to a secondmicro-computer that does arrhythmia analysis, logging, and reporting using R-R intervals and QRS durations. This system can process Holter tapes at 60 times real time and produce printed summaries and 24 h trend plots of several variables including heart rate and PVC count.read more
Citations
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Journal ArticleDOI
A Real-Time QRS Detection Algorithm
Jiapu Pan,Willis J. Tompkins +1 more
TL;DR: A real-time algorithm that reliably recognizes QRS complexes based upon digital analyses of slope, amplitude, and width of ECG signals and automatically adjusts thresholds and parameters periodically to adapt to such ECG changes as QRS morphology and heart rate.
Journal ArticleDOI
The principles of software QRS detection
TL;DR: The authors provide an overview of these recent developments as well as of formerly proposed algorithms for QRS detection, which reflects the electrical activity within the heart during the ventricular contraction.
Journal ArticleDOI
A comparison of the noise sensitivity of nine QRS detection algorithms
TL;DR: The noise sensitivities of nine different QRS detection algorithms were measured for a normal, single-channel, lead-II, synthesized ECG corrupted with five different types of synthesized noise: electromyographic interference, 60-Hz power line interference, baseline drift due to respiration, abrupt baseline shift, and a composite noise constructed from all of the other noise types.
Patent
Method and apparatus for electro-biometric identity recognition
TL;DR: In this article, a method and apparatus for electro-biometric identity recognition or verification was proposed, producing and storing a first biometric signature that identifies a specific individual by forming the difference between a representation of the heartbeat pattern of the specific individual and a stored representation of common features of the heartbeats of a plurality of individuals.
Journal ArticleDOI
Current methods in electrocardiogram characterization
TL;DR: Nonlinear methods which can capture the small variations in the ECG signal and provide improved accuracy in the presence of noise are discussed in greater detail in this review.
References
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Journal ArticleDOI
A QRS Preprocessor Based on Digital Differentiation
TL;DR: A preprocessor that detects in real time an electrocardiogram QRS complex and computes the R-R interval is described, which is encouraging as an ultrareliable means for locating the QRS.
Journal ArticleDOI
A Minicomputer System for Direct High Speed Analysis of Cardiac Arrhythmia in 24 h Ambulatory ECG Tape Recordings
Terrill Fancott,David H. Wong +1 more
TL;DR: A minicomputer system for the analysis of 24 h ambulatory ECG tapes at 60 times real time is presented and the entire analysis of a 24 h tape is completed in less than 30 min and requires only initialization by an operator.
Journal Article
A 60x computer-based Holter tape processing system.
Hubelbank M,Feldman Cl +1 more
TL;DR: The modified multi-template algorithm is conceptually similar to the original algorithm except that there are eight templates stored for each patient, and a new template is stored whenever the match with each of the old templates yields a correlation coefficient less than 0.79.