Key result
An automatic system for quantifying QT variability related to heart rate variability demonstrated satisfactory performance for records presenting signal-to-noise ratios over 20 dB.
Population
Simulated series and artificial ECG signals
Design
Other
Authors
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Supports automated QT variability assessment in high-SNR ECGs; leaves open validation for clinical use and noisier recordings.
An automatic system for quantifying QT variability related to heart rate variability demonstrates satisfactory performance on ECG records with signal-to-noise ratios above 20 dB.
Almeida et al. (2005) studied this question. Automatic system for quantifying QTV fraction related to HRV was evaluated on Estimation error of the QTV fraction related to HRV under noise contamination. An automatic system for quantifying QT variability related to heart rate variability demonstrated satisfactory performance for records presenting signal-to-noise ratios over 20 dB.
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