Radiation-Free Heart Catheterization Using MRI
Purpose
Currently catheters used in heart catheterization procedures are guided throughout the heart chambers and blood vessels by pictures taken by x-rays. This technology exposes patients to radiation. With this study protocol the investigators will use MRI technology to take real-time pictures to navigate catheters throughout heart chambers. MRI uses electromagnetic energy; therefore, it does not expose participants to radiation energy.
Conditions
- Aortic Coarctation
- Cardiomyopathy
- Atrial Septal Defect
- Aortic Stenosis
- Post Heart Transplant Catheter Procedure
- Patent Ductus Arteriosus
Eligibility
- Eligible Ages
- All ages
- Eligible Genders
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- Undergoing a medically necessary cardiovascular catheterization
Exclusion Criteria
- Cardiovascular instability including hemodynamic instability (such as requiring significant vasoactive infusion support) or mechanical hemodynamic support. - Women who are pregnant - Women who are nursing and who do not plan to discard breast milk for 24 hours - Patients with a contraindication to MRI scanning will be excluded. These contraindications include patients with the following devices: 1. Central nervous system aneurysm clips 2. Implanted neural stimulator 3. Implanted cardiac pacemaker or defibrillator which are not MR safe or MR conditional according to the manufacturer 4. Cochlear implant 5. Ocular foreign body (e.g. metal shavings) 6. Implanted Insulin pump 7. Metal shrapnel or bullet Exclusion criteria for Gadolinium (contrast agent) 1. Renal disease with estimated glomerular filtration rate < 30 ml/min/1.73 m2 body surface area
Study Design
- Phase
- N/A
- Study Type
- Interventional
- Allocation
- N/A
- Intervention Model
- Single Group Assignment
- Primary Purpose
- Diagnostic
- Masking
- None (Open Label)
Arm Groups
| Arm | Description | Assigned Intervention |
|---|---|---|
|
Experimental MRI guided cardiac catheterization |
Magnetic resonance imaging will be used to guide cardiac catheterization procedures. |
|
Recruiting Locations
More Details
- NCT ID
- NCT02739087
- Status
- Active, not recruiting
- Sponsor
- Joshua Kanter
Detailed Description
Participants undergo general anesthesia, and vascular access is obtained in the x-ray catheterization lab. Next the participant is transferred into the MRI scanner where a focused MRI examination is performed. Catheters are then guided into the heart chambers using real-time MRI guidance to perform conventional cardiac catheterization steps. If time allows, additional research MRI is performed before the participant is returned to the x-ray catheterization lab. If any MRI guided catheterization steps are unsuccessful, the clinically indicated step is performed after the participant returns to the x-ray catheterization lab using conventional x-ray guided pictures.