Why the study?
Can algorithms using heart rate-predicted R-Tmax and R-Tend intervals accurately locate T-wave fiducial points in exercise ECGs?
Can algorithms using heart rate-predicted R-Tmax and R-Tend intervals accurately locate T-wave fiducial points in exercise ECGs?
Algorithms based on heart rate-predicted intervals can highly accurately identify T-wave fiducial points in exercise ECGs.
May facilitate automated T-wave analysis in exercise ECGs; leaves open prospective validation before clinical use.
The automated location of T-wave fiducial points in single lead exercise ECG's is facilitated by using R-Tmax and R-Tend intervals predicted from heart rate. Predictive equations for these intervals were developed; algorithms were subsequently designed and tested on 8380 averaged ECG beats from 146 patients. Of 6775 ECG beats with monophasic T-waves, 98 percent of Tmax and 96 percent of Tend fiducial points were correctly identified by these algorithms. The predictive equations and associated algorithms are discussed.
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Wolthuis et al. (1979) studied this question.
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