About this tool
Analyze ECG parameters including heart rate, axis, intervals, segments, and rhythm with AI-powered interpretation and risk stratification.
The AI ECG Report Analyzer takes the numbers already printed on an ECG report — heart rate, PR interval, QRS duration and QTc — plus rhythm, axis, ST segment and T wave morphology, and classifies each one against standard adult reference ranges before combining them into a weighted 0–25 severity score. It is an educational reference for students, trainees and patients trying to read their own printout, not a diagnostic device: it does not read the tracing itself, only the measurements you type. Every classification and the plain-text report it generates stay in your browser.
Open AI ECG Report Analyzer on AltFTool — it loads instantly in your browser.
Type Heart Rate (bpm), PR Interval (ms), QRS Duration (ms) and the optional QTc (ms) off your printout, and set Gender so the right QTc band applies.
Pick Rhythm, Axis, ST Segment and T Waves under Morphology, then press Analyze ECG.
Read Overall Risk out of 25 with the Interval Analysis and Morphology Assessment bands, then use Copy Report or Download for the .txt.
Uses separate male and female thresholds — normal to 450 ms and 470 ms prolonged for males, 460 ms and 480 ms for females — instead of one blanket cut-off.
ST segment and rhythm findings carry a 3x weight, QTc 2.5x, and heart rate and QRS 2x, so a rhythm emergency outranks a mildly long PR.
Every classified interval comes with the differential it suggests — junctional rhythm or WPW for a short PR, Torsades risk for a long QTc.
A normal PR interval is 120–200 ms and a normal QRS is 80–100 ms in adults. This tool flags PR under 120 ms as short, 200–300 ms as first-degree AV block and above 300 ms as advanced delay; QRS of 100–120 ms as an incomplete block and above 120 ms as a complete bundle branch block.
Above 470 ms in males and above 480 ms in females, with 450–470 ms and 460–480 ms treated as borderline. Prolonged QTc raises the risk of Torsades de Pointes, which is why the analyzer weights it heavily and prompts a review of QT-prolonging medications and potassium and magnesium levels.
Each parameter is placed in a severity tier from 0 to 3, multiplied by a weight, and the total is capped at 25. Scores of 0–2 read as low, 3–6 moderate, 7–12 high and above 12 critical — the weights are 3x for ST changes and rhythm, 2.5x for QTc, 2x for heart rate, QRS and T waves, and 1.5x for PR and axis.
No. It classifies numbers you type against textbook reference ranges and has no access to the waveform, lead placement, your symptoms, history or medications — all of which change the interpretation. Use it to understand terminology, and take any abnormal finding, especially ST changes or a wide-complex rhythm, to a qualified clinician.