Cardiac magnetic resonance imaging: Which information is useful for the arrhythmologist?

Table 1 Current European Society of Cardiology recommendations for implantable cardioverter defibrillator implantation for primary prevention in patients with ischemic and non-ischemic left ventricular dysfunction

Recommendations
Class I: ICD therapy is recommended to reduce SCD in patients with symptomatic HF (NYHA class II–III) and LVEF ≤ 35% after ≥ 3 mo of optimal medical therapy who are expected to survive for at least 1 yr with good functional status
Level of evidence A: Ischemic etiology (at least 6 wk after myocardial infarction)
Level of evidence B: Non-ischemic etiology

From ref. [3]. ICD: Implantable cardioverter defibrillator; SCD: Sudden cardiac death; LVEF: Left ventricular ejection fraction; HF: Heart failure; NYHA: New York Heart Association.