What LGE pattern indicates ischemic cardiomyopathy?

Ischemic LGE follows a coronary distribution: subendocardial or transmural enhancement in a vascular territory. Non-ischemic patterns include mid-wall (DCM), epicardial (myocarditis), or insertion point (RV overload).

What is the clinical importance of LGE pattern?

LGE presence and pattern guide etiology diagnosis, risk stratification, ICD decisions, and prognosis. Mid-wall LGE in DCM independently predicts ventricular arrhythmias and sudden death.

What LGE extent predicts worse outcomes?

LGE extent >5% in DCM is associated with significantly higher mortality and arrhythmia risk. Transmural LGE extent >50% in ischemic CM predicts lack of viability and poor revascularization benefit.

LGE Ischemic vs Non-Ischemic Pattern

Differentiate ischemic from non-ischemic cardiomyopathy using late gadolinium enhancement (LGE) patterns on cardiac MRI: subendocardial/transmural (ischemic) vs mid-wall/epicardial (non-ischemic).

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Frequently Asked Questions

What LGE pattern indicates ischemic cardiomyopathy?

What is the clinical importance of LGE pattern?

What LGE extent predicts worse outcomes?