Plain-English translation of NCT04247685 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Atrial Fibrillation research guide →This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
Researchers are testing a new heart monitoring device called a 12-lead ECG system that works during MRI scans. Unlike the standard 3-lead heart monitor used today, this new device is designed to pick up heart rhythm problems more clearly and work better inside the MRI machine's strong magnetic field. The goal is to help doctors get better heart information while patients are being scanned for other medical conditions.
When patients need an MRI scan, doctors often need to monitor their heart at the same time — especially for people with atrial fibrillation, an irregular heart rhythm. The current standard heart monitor (with 3 leads) doesn't always catch important heart problems, and the MRI's magnetic field can interfere with the signal. This new monitoring system was designed to solve both of these problems.
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You will come for an MRI scan while wearing either the new 12-lead heart monitor or the standard 3-lead monitor (chosen randomly). The study team will watch your heart rhythm throughout the scan to see how well the new device works compared to the standard one. The scan itself is the same as a regular MRI — you'll lie still in the scanner while it takes images, but with better heart monitoring happening at the same time.
AI-generated summary from trial data · Jun 25, 2026 · Not medical advice
Canada
Sponsor
Dr. Graham Wright
Enrollment target
~40 participants
Started
January 2021
Primary completion
December 2026
Age range
18 Years – 90 Years
Last updated on clinicaltrials.gov in May 2025.
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Central contact
Mary Li, MSc
Dr. Graham Wright
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.