Tp-e/QT Ratio
Tp-e/QT ratio (Gupta 2008): the T-peak-to-T-end interval divided by the QT interval, a marker of transmural dispersion of repolarization; reference ~0.21.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Tp-e interval
- 120 ms
- QT interval
- 400 ms
Result: Tp-e/QT ratio 0.3 — increased (> 0.25).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- ~0.21
- Precordial reference.
- > 0.25
- Increased transmural dispersion of repolarization (Tp-e / QT), associated with greater ventricular-arrhythmia risk. An ECG index, not a diagnosis.
What you enter
- Tp-e interval
- QT interval
How this is calculated
Gupta P, Patel C, Patel H, et al. Tp-e/QT ratio as an index of arrhythmogenesis. J Electrocardiol. 2008;41(6):567-574. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.