MRI-guided Electrophysiological Interventions in Swine using Active Tracking and passive Catheter Visualization

Zielsetzung: Electrophysiological (EP) procedures guided by MRI have the potential of improving catheter navigation and of characterizing tissue changes. Here we present the results of a series of ablation studies using a combination of active catheter tracking and real-time catheter imaging. Material und Methodik: A 3D data set containing the heart was acquired in 8 swine using a 1.5T MR-scanner and a 3D-sequence. An MR-EP-platform (iSuite, Philips Research Hamburg) created 3D-models of all cardiac chambers. Two MRI conditional catheters (Vision, Imricor Medical Systems) were inserted via femoral sheaths. Activ…