Dataset of Manually Measured QT Intervals in ECG
Author Information
Author(s): Ivaylo Christov, Ivan Dotsinsky, Iana Simova, Rada Prokopova, Elina Trendafilova, Stefan Naydenov
Primary Institution: Centre of Biomedical Engineering, Bulgarian Academy of Sciences
Hypothesis
Can the QT interval be measured by fully automated methods with accuracy acceptable for clinical evaluations?
Conclusion
A fully accessible dataset of manually measured Q-onsets and T-wave ends was created for the development of automated methods for QT interval measurements.
Supporting Evidence
- The dataset includes 549 ECG recordings.
- Manual measurements were made by 4 cardiologists and 1 biomedical engineer.
- The study followed a modified Delphi approach for accuracy.
Takeaway
Researchers created a dataset of heart measurements to help computers learn how to measure heart rhythms accurately.
Methodology
Manual marking of QRS onsets and T-wave ends in ECG recordings by cardiologists and a biomedical engineer.
Potential Biases
Referees had varying levels of experience, which could introduce bias in measurements.
Limitations
Some recordings were contaminated with noise, making accurate measurements difficult.
Participant Demographics
The recordings come from 294 subjects with a broad range of ages and diagnoses, including healthy controls.
Statistical Information
Confidence Interval
99%
Digital Object Identifier (DOI)
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