Magnetic Resonance–Guided Cardiac Catheterization in a Swine Model of Atrial Septal Defect

Abstract
Background— Radiation exposure during cardiac catheterization, limited image planes, and poor soft tissue definition are disadvantages of x-ray fluoroscopy that could be overcome with the use of MRI. This study evaluates the feasibility of real-time MRI (MR fluoroscopy) to guide left and right heart catheterization.