Abstract
Cardiac fibrosis is a significant increase in collagen volume fraction of myocardial tissue. It plays an important role in the pathophysiology of many cardiovascular abnormalities. Electrophysiologically, myocardial fibrosis produces anisotropic conduction, inhomogeneity, and conduction delay. Several markers are available to detect myocardial fibrosis. CMRI is the most common imaging technique; late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) provides markers for tissue characterization, disease progression and arrhythmic events. LGE-CMR can be used as risk marker of occurrence of pathologic conditions. LGE-CMR demonstrates specific patterns related to different pathologic substrates. We discuss the role of CMRI in ventricular arrhythmogenesis.
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