Key result
T-wave morphology parameters based on principal component analysis are reproducible, except for T-wave residuum and QRS-T angle, and show little dependence on T-end cursor position.
Why the study?
Are T-wave morphology parameters based on principal component analysis reproducible and robust to T-end cursor position changes?
Population
30 subjects with digital ECGs recorded
Follow-up
28 days
Authors
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May enhance ECG parameter selection in research; leaves open clinical adoption without larger validation.
Observational (n=30)
Are T-wave morphology parameters based on principal component analysis reproducible and robust to T-end cursor position changes?
T-wave morphology parameters based on PCA are generally reproducible and robust to T-end cursor position, supporting their use in safety pharmacology trials.
Extramiana et al. (2007) reported an observational. T-wave morphology parameters based on principal component analysis was evaluated on Long-term repeatability (coefficient of variation) of PCA parameters. T-wave morphology parameters based on principal component analysis are reproducible, except for T-wave residuum and QRS-T angle, and show little dependence on T-end cursor position.
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