Plain-English translation of NCT04662970 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Heart Failure research guide →This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This is a diagnostic study designed to help doctors better understand and optimize cardiac resynchronization therapy (CRT) devices — specialized pacemakers that help the heart pump more effectively. Researchers will use advanced heart imaging and computer modeling to calculate the best device settings for each patient, potentially improving how well the pacemaker works.
Many patients have pacemakers that aren't programmed optimally, which means they may not be getting the full benefit of the device. This study aims to develop a more precise, personalized method for programming these devices by using detailed imaging and computer models of the heart's electrical activity.
You likely qualify if…
You likely don't qualify if…
If you join this study, you will undergo a specialized heart MRI scan that creates detailed images of your heart's structure. These images will be combined with your heart's electrical activity data from your pacemaker to create a computer model. Researchers will then use this model to test different pacemaker programming settings and recommend the optimization that may work best for you.
AI-generated summary from trial data · Jun 25, 2026 · Not medical advice
Austria
Sponsor
Medical University Innsbruck
Enrollment target
~25 participants
Started
January 2020
Primary completion
December 2027
Age range
18 Years and older
Last updated on clinicaltrials.gov in October 2025.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Wolfgang Dichtl, MD PhD
Medical University Innsbruck
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.