A smartphone application for semi-automated QT interval analysis based on a snapshot of an electrocardiogram trace displayed on a patient monitor
Authors' conclusion
The agreement between QTAPP and QTREF and between QTcAPP and QTcREF was clinically acceptable in adult volunteers and patients without cardiac comorbidities.
Study context
- Population
- Adult volunteers and patients with sinus rhythm and no acute or chronic cardiac comorbidities
- Participants
- 57 volunteers
- Exposure
- SMART-QT smartphone app vs manual 12-lead electrocardiogram (ECG) measurement
- Outcome
- Agreement of QT and QTc intervals (Bland-Altman: mean of differences, SD, 95%-limits of agreement; clinically acceptable if ≤ 20 ± 20 ms)
Methodological detailsprospective, single-centre
- Prospective
- Single-centre
Main finding
As reported in the abstract
Agreement (Bland-Altman)
Mean of the differences, ms (95%-LOA CI)
QTAPP vs QTREFSD 20 ms
14(−26 to 54)
QTcAPP vs QTcREFSD 15 ms
13(−16 to 42)
Observational data: associations, not effects.
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
A smartphone application for semi-automated QT interval analysis based on a snapshot of an electrocardiogram trace displayed on a patient monitor. J Clin Monit Comput. Published 10 April 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →