ProMRI 3T ENHANCED Master Study

Inclusion Criteria: * Implanted with Implantable Cardioverter Defibrillator (ICD) system according to Clinical Investigational Plan (CIP) * ICD system was implanted in the pectoral region * Implantation at least 5 weeks prior to enrollment date * Patient body height ≥ 140 cm * Age ≥ 18 years * Right Ventricular pacing threshold (at 0.4 ms) measurable and ≤ 2.0 V * Written informed consent * Able and willing to complete MRI testing * Able and willing to complete all testing required by the clinical protocol * Available for all follow-up visits at the investigational site Exclusion Criteria: * Standard contraindication for MRI scans * Patient shows signs of a twiddler's syndrome, i.e. fiddles with implant * Explantation, exchange or reposition of ICD or lead within 5 weeks prior to enrollment date * Charging status of the battery is Elective Replacement Indicator (ERI) or End of Service (EOS) * MRI scan within 5 weeks prior to enrollment date * R-wave sensing amplitude \< 6.5 millivolt * Lead impedance less than 200 or greater than 1500 Ohm * Life expectancy of less than six months * Cardiac surgery in the next six months * Pregnant or breastfeeding * Participation in another interventional clinical investigation