D3H logoD3HCardiovascular
Intelligence
Infrastructure
About us

Building the data foundation for cardiovascular AI.

D3H links ECG, cardiac imaging, treatment and outcomes into research-ready data, so the teams building the next generation of cardiac AI and therapies can start from evidence, not from scratch.

  • Founded 2022
  • Luxembourg, Europe
  • Patient-linked · Longitudinal · Multimodal
D3H heart and data ring
Our story

The data that could change cardiology was scattered.

Cardiovascular disease is still the world’s leading cause of death.

Yet the data that could help change that is scattered: ECGs in one system, echocardiograms in another, and treatment and outcomes somewhere else entirely.

We saw research and AI teams spend years getting access to data, cleaning it and linking patient records before they could test a single idea. So we decided to build that foundation once, properly.

  1. The problem

    Fragmented data, years of groundwork

    ECGEchoAngiographyTreatmentOutcomes
  2. Since 2022

    Linked at the patient level, over time

    Repeated ECGs, echo and angiography, treatment journeys and follow-up. Quality-controlled, structured and ready for research.

    ECGEchoAngioTreatmentOutcomes
  3. 2026

    Patients take part directly

    Our patient channel gives people a clear view of their heart health, and the choice to donate their data to research.

Our mission

To make high-quality cardiovascular data accessible, trustworthy and ready for research, so that better diagnostics and treatments reach patients faster.

Our vision

A future where every major breakthrough in cardiovascular AI is built, validated or accelerated through D3H.

What we believe

Principles that shape everything we build.

How we work with data, patients, clinicians and partners, every day.

Data should be linked, not just collected.

A single ECG tells you little. A patient’s journey over time tells you much more.

Privacy isn’t optional.

Patients choose how their data is used, and we share it only with approved partners, for approved research.

Evidence over hype.

We report what we’ve validated and are clear about what we haven’t.

Clinicians in the loop.

Cardiology expertise shapes our data, our models and our patient services.

D3H logoDigital Heart Health Hub · Cardiovascular Intelligence Infrastructure