Compared to X-Ray fluoroscopy, cardiovascular interventions under MR-guidance do not use ionizing radiation, they provide excellent soft tissue contrast, cross-sectional imaging in arbitrary slice orientations and a variety of functional measurement techniques. MR-guided catheterization of coronary arteries has so far only been demonstrated in animal trails at 1.5T, and it remains challenging due to limited temporal and spatial resolution. Also, dedicated instruments for MR-guided coronary interventions are not yet widely available. We show that active visualization of commercial catheters for MR-guided percutaneous coronary in a pig model at 3T is feasible and enables engagement of the LCA under real-time imaging.
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