ArticleJournal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance2019
A cardiovascular magnetic resonance (CMR) safe metal braided catheter design for interventional CMR at 1.5 T: freedom from radiofrequency induced heating and preserved mechanical performance.
Article in Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Interventional cardiac magnetic resonance imaging: current applications, technology readiness level, and future perspectives.Therapeutic advances in cardiovascular diseasePooled it
- RF-induced Heating Estimation of a Stent in a 3T MRI using Transfer Function Approach with a Tabletop E-field Generator.IEEE access : practical innovations, open solutions · 2024Article
- Quantifying myocardial perfusion during MR-guided interventions without exogenous contrast agents: intra-arterial spin labeling.Zeitschrift fur medizinische Physik · 2024Article
- Interventional cardiovascular magnetic resonance: state-of-the-art.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2023Review
- RF-induced heating of interventional devices at 23.66 MHz.Magma (New York, N.Y.) · 2023Article
- An interventional MRI guidewire combining profile and tip conspicuity for catheterization at 0.55T.Magnetic resonance in medicine · 2023Article
- MRI-guided endovascular intervention: current methods and future potential.Expert review of medical devices · 2022Review
- Sustainable low-field cardiovascular magnetic resonance in changing healthcare systems.European heart journal. Cardiovascular Imaging · 2022Review
- A 20-gauge active needle design with thin-film printed circuitry for interventional MRI at 0.55T.Magnetic resonance in medicine · 2021Article
- MRI for Guided Right and Left Heart Cardiac Catheterization: A Prospective Study in Congenital Heart Disease.Journal of magnetic resonance imaging : JMRI · 2021Article
- MRI Catheterization: Ready for Broad Adoption.Pediatric cardiology · 2020Review
- Real-time 3T MRI-guided cardiovascular catheterization in a porcine model using a glass-fiber epoxy-based guidewire.PloS one · 2020Article
- Real-time magnetic resonance imaging - guided coronary intervention in a porcine model.Scientific reports · 2019Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
backgroundCatheter designs incorporating metallic braiding have high torque control and kink resistance compared with unbraided alternatives. However, metallic segments longer than a quarter wavelength (~ 12 cm for 1.5 T scanner) are prone to radiofrequency (RF) induced heating during cardiovascular magnetic resonance (CMR) catheterization. We designed a braid-reinforced catheter with interrupted metallic segments to mitigate RF-induced heating yet retain expected mechanical properties for CMR catheterization.
methodsWe constructed metal wire braided 6 Fr catheter shaft subassemblies using electrically insulated stainless-steel wires and off-the-shelf biocompatible polymers. The braiding was segmented, in-situ, using lasers to create non-resonant wire lengths. We compared the heating and mechanical performance of segmented- with un-segmented- metal braided catheter shaft subassemblies.
resultsThe braiding segmentation procedure did not significantly alter the structural integrity of catheter subassemblies, torque response, push-ability, or kink resistance compared with non-segmented controls. Segmentation shortened the electrical length of individually insulated metallic braids, and therefore inhibited resonance during CMR RF excitation. RF-induced heating was reduced below 2 °C under expected use conditions in vitro.
conclusionWe describe a simple modification to the manufacture of metallic braided catheters that will allow CMR catheterization without RF-induced heating under contemporary scanning conditions at 1.5 T. The proposed segmentation pattern largely preserves braid structure and mechanical integrity while interrupting electrical resonance. This inexpensive design may be applicable to both diagnostic and interventional catheters and will help to enable a range of interventional procedures using real time CMR.
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