Every day, clinics across Europe rely on ambulatory ECG recorders to detect arrhythmias and support clinical decisions. But with so many devices available, how can we tell which ones consistently deliver clean, usable signals?
At Cardiomatics, we analyse ECG data from over 60 different devices, collected from hundreds of clinics. Because our platform is hardware-agnostic and powered by AI, we have a unique perspective on how these devices perform in real life.
That’s why we created the Cardiomatics Certified Excellence 2025 report. A clear, data-driven benchmark based on real-world clinical use.
Building on Last Year’s Findings
This report continues the work we started in last year’s analysis, which compared signal quality across patch and cable recorders. That blog post sparked a lot of interest from clinicians and device makers alike.
Now, we’ve gone further. We expanded the dataset, formalised the method, and added a clear recognition for devices that consistently deliver high-quality ECG signals in daily practice.
Why Signal Quality Matters
Even the most advanced algorithms (or experienced cardiologists) can’t diagnose from a noisy ECG. If the signal is unstable, full of artefacts, or incomplete, it becomes hard to trust. This is especially true for longer recordings, where patient movement, skin changes, or loose electrodes can degrade quality.
In short: good data is essential for good diagnosis. Whether it’s done by AI or a human expert.
What’s in the Report?
We analysed tens of thousands of ambulatory ECG recordings from 2024. Each device was evaluated based on noise burden — the percentage of recording time where the signal was too noisy to interpret. This gives a direct measure of signal quality. To ensure fairness, we separated patch and cable devices in the results table.
Who Should Read This?
This report is useful for many groups:
- Procurement teams choosing devices for tenders or RFPs
- Clinicians reviewing the performance of current equipment
- Device manufacturers looking to benchmark their products
- Health systems aiming to standardise care across locations
- You can also use it to guide internal audits, support funding decisions, or improve clinical workflows.
What You’ll Learn
- Which devices achieved Certified Excellence
- How we measured noise burden and selected devices
- Why we distinguish between patch and cable recorders
- What clinical experts say about signal quality in daily care
- How you can use this data in your own practice
