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NCT03152773 · ClinicalTrials.gov registry record · NA
Heart Catheterization Using Magnetic Resonance Imaging (MRI) Fluoroscopy and Passive Guidewires
A NA study, sponsored by National Heart, Lung, and Blood Institute (NHLBI).
- Completed
- Registry status
- NA
- Development phase
- 22
- Enrollment target
NCT03152773: Completed NA study, sponsored by National Heart, Lung, and Blood Institute (NHLBI).
NCT03152773 is a NA study that has completed, run by National Heart, Lung, and Blood Institute (NHLBI). The registered enrollment target is 22 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03152773, a NA study, has completed, sponsored by National Heart, Lung, and Blood Institute (NHLBI).
- COMPLETED
- Registry status
- NA
- Development phase
- 22 participants
- Enrollment target
Study Summary
Background: A heart catheterization is a diagnostic heart procedure used to measure pressures and take pictures of the blood flow through the heart chambers. Magnetic resonance imaging (MRI) fluoroscopy shows continuous pictures of the heart chambers that doctors can watch while they work. Researchers want to test this procedure with catheterization tools routinely used in x-ray catheterization called guidewires. Guidewires will help move the heart catheter through the different heart chambers. Guidewires are usually considered unsafe during MRI because MRI can cause a guidewire to heat while inside the blood vessels and heart. Researchers are testing special low energy MRI settings that allow certain guidewires to be used during MRI catheterization without heating. Using these guidewires during MRI may help to decrease the amount of time you are in the MRI scanner, and the overall time the MRI catheterization procedure takes. Objectives: To test if certain MRI settings make it safe to use a guidewire during MRI fluoroscopy. Eligibility: Adults 18 and older whose doctors have recommended right heart catheterization. Design: Researchers will screen participants by reviewing their lab results and questionnaire answers. Participants may give 4 blood samples. Participants will be sedated. They will have a tube (catheter) placed in the groin, arm, or neck if they don t already have one. Patches on the skin will monitor heart rhythm. Special antennas, covered in pads, will be placed against the body. Participants will lie flat on a table that slides in and out of the MRI scanner as it makes pictures. Participants will get earplugs for the loud knocking noise. They can talk on an intercom. They will be inside the scanner for up to 2 hours. They can ask to stop at any time. During a heart catheterization, catheters will be inserted through the tubes already in place. The catheters are guided by MRI fluoroscopy into the chambers of the heart and vessels. The guid
Primary Outcome
Number of participants with any procedure-related adverse event during MRI-guided cardiac catheterization using passive MRI-compatible catheters and the specified guidewire under defined low-SAR conditions using Common Terminology Criteria for Adverse Events (CTCAE) grading. Events included clinically significant arrhythmia, hemodynamic instability requiring treatment, vascular injury, cardiac perforation/tamponade, device-related heating or burn, or other intervention-related complication. The
Interventions
- PROCEDURE MRI Heart guidewire catheterization
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 22 participants |
| Start Date | 2017-08-02 |
| Est. Completion | 2021-12-14 |
| Phase | NA |
What the finished NCT03152773 record still lists
NCT03152773 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 22 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 1 intervention - of which MRI Heart guidewire catheterization is the first listed.
NCT03152773 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03152773 about?
NCT03152773 is a clinical study titled "Heart Catheterization Using Magnetic Resonance Imaging (MRI) Fluoroscopy and Passive Guidewires". Background: A heart catheterization is a diagnostic heart procedure used to measure pressures and take pictures of the blood flow through the heart chambers. Magnetic resonance imaging (MRI) fluoroscopy shows continuous pictures of the heart chambers that doctors can watch while they work. Research...
What is the current status of trial NCT03152773?
This trial is currently completed. It is a NA study. The enrollment target is 22 participants. The study started on 2017-08-02. Estimated completion is 2021-12-14.
What interventions are being tested in trial NCT03152773?
The interventions under investigation include: MRI Heart guidewire catheterization (PROCEDURE).
Who is sponsoring clinical trial NCT03152773?
This trial is sponsored by National Heart, Lung, and Blood Institute (NHLBI), which has 501 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03152773's enrollment target sits among peer trials
22 1756th of 2000 higher than 239 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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