EP Calipers allows you to use electronic calipers to make measurements on images of ECGs or EP recordings. Use time calipers to measure intervals or heart rate, amplitude calipers to measure voltage, and angle calipers for specialized uses such as evaluating Brugada Syndrome. See this post for more details.
EP Calipers is available for iPhone or iPad, Android devices, Mac, and Microsoft Windows™.
Get EP Calipers
Note on EP Calipers for Windows
A new version of EP Calipers for Windows, EP Calipers 3 is now available on the Microsoft Store. See this blog post for more information on this completely rewritten version of the app.
The original version, the version 2.x series, is still available and will be supported, but it is encouraged that new users obtain the new version and users of the original version are encouraged to upgrade.
EP Calipers for Windows is only available from the Microsoft Store. Users and institutions interested in obtaining the app outside of the Store or who want a multi-user license should contact support at EP Studios directly.
Examples
Other examples
YouTube videos
Note: some of these are a bit dated and lack some of the newer features, but they should give you a general idea of how to use the app on different platforms.
EP caliper transparency is gone after Mojave update
Has been restored in latest version (1.16.1 and above).
it is not caliper QT c
isnot re down apple
Can you clarify your comment?
ep calipers is useless on Mac you can not get the measurements in ms and most of the features are grayed out. It would have been nice to know this before purchasing.
You have to calibrate your caliper with the calibrate button before you can get measurements in ms and make calculations. If this is not the problem please email me at mannd@epstudiossoftware.com.
Do you have any validation data on this program to support it is fairly accurate and precise when making measurements for intervals compared to hand measurements with physical calipers?
No, not formally. However, the calipers are just measuring screen distances in pixels and applying scaling factors using floating point arithmetic. The code is open source and on GitHub so it can be examined. Nevertheless, errors could occur particularly in photographed ECGs, where the ECG is not perpendicular to the camera or the photo is otherwise distorted.
If you are considering using the program for research it would be important to compare hand and electronic measurements to validate the technique.
Hi, is there a way to load an ecg which are made up of several pages and then toggle or scroll between them?
The Mac version now allows you to open multiple image windows at the same time.
Hello
I bought the EP calipers app but it does not meet my expectations. I would like to request a refund.
Thank you
Hi Olga, sorry to hear that. I don’t handle refunds directly. You should contact wherever you bought it from (Apple App Store, Google Play, Microsoft Store or Fastspring).
Best,
David
Good evening! I am a functional diagnostics doctor from Ukraine. I really like your EP Calipers program. Please tell me if it is possible to add the interval P-Q and QRS. Thank you!
All the measurements are manual so you can measure whatever interval you want.
Sir, Kindly make provisions of adding text box on the on ECG in mac version and also make provision to write with apple pencil on ECG.