Assessment of heart failure etiology with CMR. A) LGE-CMR short axis slice showing a subendocardial myocardial infarction in the territory of the left anterior descending artery; B) LGE-CMR short axis slice showing a transmural myocardial infarction the territory of the circumflex artery; C) LGE-CMR showing a transmural myocardial infarction in the territory of the right coronary artery, which is associated with marked myocardial thinning.; D) Patchy LGE characteristic of myocarditis.; F) Mixed cardiomyopathy: left ventricular non-compaction cardiomyopathy and ischemic cardiomyopathy. Note the transmural inferior myocardial infarction (see insert for LGE-CMR) which has led to myocardial thinning.; G) Four-chamber and short-axis LGE-CMR images showing mid-wall LGE, denoting fibrosis, in idiopathic dilated cardiomyopathy.