How to improve the quality of an ECG instantly (with examples)
Poor-quality ECG recordings can sometimes prevent physicians from correctly evaluating the ECG and detecting abnormalities. PMcardio will digitize it and produce a clear, top-notch quality ECG tracing.
Poor-quality ECG recordings can sometimes prevent physicians from correctly evaluating the ECG and detecting abnormalities. With the PMcardio app, cardiologists and other healthcare professionals can simply take a photograph of a paper-based ECG, and PMcardio will digitize it and produce a clear, top-notch quality ECG tracing.
Using powerful artificial intelligence algorithms, image recognition (computer vision) and scale normalization techniques, PMcardio reads and reconstructs any 12-lead ECG into a digital waveform in a few seconds. And when we say ‘any’, we mean it.
Your ECG can be in any condition – old, worn out, damaged, deformed, crumpled, scribbled over, incomplete, etc. No matter the distortion, PMcardio will correct it and undistort it.
Just look at this example.

Even if your original ECG is barely legible, PMcardio’s artificial intelligence can digitize and interpret it.
Try it now and see for yourself! Get PMcardio right now and scan your first ECG.
This feature provides cardiologists with a reliable tool to interpret ECGs that were previously difficult or unusable. Doing so eliminates the risk of missing an acute diagnosis due to a low-quality ECG. This is a major breakthrough in ECG interpretation and ensures cardiologists have the best chance at accurately diagnosing patients.
As Ken Grauer, MD, Author, Educator of ECG Interpretation/ACLS, and owner of the ECG Interpretation blog noted:
“My perspective is that of an ECG expert interpreter who does extensive writing (and illustrating), often based on tracings sent to me via the internet. Such tracings are often photos taken from smartphones — therefore photographed in suboptimal lighting, with the ECG often angled and even folded (therefore distorted). What I love about PMcardio — is that within seconds, I’m able to obtain a vastly improved quality copy of the original tracing. I find it amazing how PMcardio “straightens” waveforms and eliminates artefact.”
Here are a couple of other examples of poor-quality ECGs digitized by PMcardio.
An old ECG with faded tracing

A crumpled ECG

An ECG with stains covering the tracing

An object covering an ECG

A scribbled-over ECG

An ECG taken from an angle

Over to you
PMcardio removes distortion and enhances the overall quality of any 12-lead ECG instantly – in just a few seconds. Every ECG diagnostic report you create with PMcardio includes the digitized 12-lead ECG. Learn more about PMcardio’s ECG diagnostic reports here.
Want to see more examples like this? Follow our Chief Medical Officer, Dr Robert Herman, on Twitter.
Try PMcardio for free and see what it can do for you in your medical practice!
About PMcardio
PMcardio is a CE-marked Class IIb AI medical device that interprets any 12-lead ECG — from a photo or a digital file — in seconds. It detects 50+ ECG findings, including occlusion myocardial infarction (OMI) — the acute coronary occlusions that conventional STEMI criteria miss in over half of cases. Its Queen of Hearts™ OMI model holds FDA Breakthrough Device Designation, and PMcardio is already used by 100,000+ clinicians who have analyzed more than 2.5 million ECGs.
About Powerful Medical
Powerful Medical is a medical-technology company using artificial intelligence to transform how cardiovascular disease — the world’s leading cause of death — is diagnosed. Founded in 2017, it built PMcardio, the world’s first AI medical device to detect acute coronary occlusion (OMI) from an ECG. Its research is published in the European Heart Journal – Digital Health and validated across 25+ clinical studies, and its Queen of Hearts™ model earned FDA Breakthrough Device Designation. To date, PMcardio has supported the detection of 120,000+ heart attacks across 150+ hospital deployments worldwide.