Magnetic heart scan may outshine ECG for predicting dangerous heart rhythms
NCT ID NCT07270211
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study at Mayo Clinic will enroll 100 adults with atrial fibrillation who are taking the drug dofetilide. Researchers will compare a non-invasive magnetic heart scan (magnetocardiography, or MCG) with the standard ECG to see which better predicts safe drug dosing and heart complications. The goal is to improve safety and outcomes for people with Long QT syndrome.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If MCG proves more accurate than ECG, it could become a new standard for monitoring heart rhythm risks, helping doctors make safer treatment decisions.
What could go wrong
This is an early observational study with only 100 participants, so results may not apply to everyone. MCG is still experimental and not widely available.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Mayo Clinic in Rochester
Rochester, Minnesota, 55905, United States
Contact
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