CClinicalTrials.gg
RecruitingNCT04247685Updated May 29, 2025

Evaluation of MRI-conditional 12-lead ECG

An interventional study of 12-lead ECG monitoring device (MiRTLE Medical) and 3-lead ECG gating system in Atrial Fibrillation, sponsored by Dr. Graham Wright. Recruiting at 1 site in Canada. Open to participants aged 18 Years to 90 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-05-29.

Sponsored by Dr. Graham Wright · Not applicable, Interventional, and Other

From the registry’s dates

  • Started Jan 2021; still recruiting 5 years 8 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Non-randomized
Ages
18 Years to 90 Years
Sex
All
01

Study summary

With MRI's increasing role in detecting central nervous system and orthopedic diseases, patients with ischemic history are increasingly referred for MRI exams. Currently, 3-lead ECG gating systems are utilized during cardiac MRI scanning as standard of care. However, this monitoring system is often insufficient to evaluate for the development of important arrhythmias or ischemia during MRI scanning. Morevoer, MRI associated magnetic fields and radio frequency pulses can produce interference in the ECG signal that leads to non-diagnostic ECG signals. MiRTLE Medical, a Massachusetts-based medical device company, has developed a high-fidelity, MRI-conditional 12-lead ECG monitoring system. This 12-lead ECG system is a first of its kind that addresses the MRI-induced interference and safety issues. This study is to evaluate the efficacy of this 12-lead ECG system in the clinical setting. The investigators hope that this system will be helpful for image-guided therapeutics especially electrophysiology.

02

Conditions studied

  • Atrial Fibrillation

Browse trials for

03

In context

Atrial Fibrillation

3,870 studies on the registry are indexed under Atrial Fibrillation; 923 are open to participants now.

This study's planned enrollment of 40 is below the median of 144 across 2,380 interventional studies indexed under Atrial Fibrillation.

Browse Atrial Fibrillation studies →

Lead sponsor

This is the only study on the registry with Dr. Graham Wright as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • 18 years of age and older
  • Atrial fibrillation
  • Provision of informed consent
  • Eligible for the Ontario Health Insurance Plan

Exclusion criteria

Exclusion Criteria:

  • Failure to provide informed consent
  • Pregnant women
  • CMR contra-indicated
  • Hemodynamically unstable
  • Permanent pacemaker/ICD
  • Aneurysm clip/carotid artery vascular clamp
  • Claustrophobic
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
40 participants (estimated)

Study arms

  • Experimental
    12-Lead ECG

    The study group patients will have MRI with 12-lead ECG monitoring device produced by a Massachusetts-based medical device company MiRTLE Medical

    Device: 12-lead ECG monitoring device (MiRTLE Medical)

  • Active comparator
    3-lead ECG gating system

    the control group will have MRI with 3-lead ECG gating which is standard of care.

    Device: 3-lead ECG gating system

Interventions

  • Device12-lead ECG monitoring device (MiRTLE Medical)

    12-lead ECG monitoring device produced by a Massachusetts-based medical device company MiRTLE Medical is the experimental device;

  • Device3-lead ECG gating system

    3-lead ECG gating system is the placebo/standard of care

06

What researchers measure

Primary outcomes

  1. absolute numbers and percentages

    the following patient data will be collected as absolute numbers and percentages in a future Table 1: Age, Sex, Cardiovascular Risk Factors (DM, HTN, Dyslipidemia, smoking, family history of cardiovascular disease), Atrial fibrillation risk factors (CHADS-2 score; CHF, Age \>75, DM, prior stroke/CVA), Prior atrial fibrillation ablation procedures, echocardiographic parameters (LVEF, Left atrial size), MRI parameters (Left ventricular end-diastolic volume, left ventricular end systolic volume, left ventricular stroke volume, LVEF, left atrial volume, right ventricular volumes and ejection fraction.)

    Time frame: up to 6 weeks

  2. qualitatively comparison with a standard scale

    qualitatively comparison will be done for ECG signal quality and artifact between the 12-lead and 3-lead ECG arms using a standard scale. A 5 point Likert scale will be used with the below scores: 1. indicating 12-lead ecg quality is substantially worse than 3-lead ecg 2. somewhat worse 3. equivalent 4. somewhat better 5. significantly better

    Time frame: up to 6 weeks

07

Study locations

1 of 1 sites recruiting
  • Sunnybrook Health Sciences Center
    Toronto, Ontario M4N 3M5, Canada
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 29, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04247685
Lead sponsor
Dr. Graham Wright
Responsible party
Dr. Graham Wright (Senior scientist, Sunnybrook Health Sciences Centre) — Sponsor-investigator
First posted
Jan 30, 2020
Start date
Jan 18, 2021
Primary completion
Dec 31, 2026 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
May 29, 2025

Study contacts

Mary Li, MSc
Contact
mary.li@sunnybrook.ca
4164806100 ext. 89664

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion