ECG and echo annotation for cardiologists
Arrhythmia detectors and automated echo measurements are only as reliable as the cardiologists who label their training data. Annotate ECGs and echocardiograms remotely, on your own schedule.
What cardiology annotation involves
ECG rhythm labeling
Classify rhythms, mark P waves, QRS complexes and T waves, and flag atrial fibrillation, blocks and ischaemic changes.
Interval measurement
Measure PR, QRS and QT/QTc intervals on 12-lead, Holter and wearable recordings.
Echocardiogram annotation
Label standard views, trace endocardial borders and record ejection fraction and valve measurements.
Model output review
Check automated interpretations against the tracing and correct misclassified beats.
Typical tools: Browser-based ECG viewers, EchoPAC, CVAT.
Who we look for
- Cardiologists and electrophysiologists
- Cardiology residents and fellows
- Cardiac physiologists and echo sonographers
- Internal medicine physicians who read ECGs routinely
Cardiology annotation questions
Can I annotate ECGs remotely?
Yes. ECG and echo data are de-identified and reviewed in secure browser-based tools, so you can work from anywhere.
Do cardiac physiologists and sonographers qualify?
Yes. Many ECG and echo projects need experienced physiologists and sonographers, with cardiologists reviewing difficult cases.
What kind of ECG data will I see?
12-lead resting ECGs, Holter recordings and single-lead signals from wearables, depending on the project.
How is cardiology annotation paid?
You set your own hourly rate when you register. Each project states its scope, volume and budget before you accept.
More answers on the medical annotation jobs overview.
Put your cardiology expertise to work on medical AI
Applying takes a few minutes. No commitment until you accept a project.