Importance of delayed enhanced cardiac MRI in idiopathic RVOT-VT: Differentiating mimics including early stage ARVC and cardiac sarcoidosis

Carlos Macias, Keijiro Nakamura, Roderick Tung, Noel G. Boyle, Kalyanam Shivkumar, Jason S. Bradfield

Research output: Contribution to journalReview articlepeer-review

6 Scopus citations

Abstract

A detailed understanding of cardiac anatomy and pathophysiology is necessary to optimize catheter ablation procedural success for patients with symptomatic ventricular tachycardia (VT)/premature ventricular contractions (PVCs) of outflow tract origin. Comprehensive imaging with cardiac magnetic resonance imaging (cMRI) is now at the forefront of procedural planning for complex ventricular arrhythmia ablation for patients with structural heart disease, but is increasingly used in patients with presumed "idiopathic" outflow VT/PVCs as well. cMRI with late gadolinium enhancement (LGE) can localize small regions of myocardial scar from previous myocardial infarction, fibrosis from non-ischemic cardiomyopathy, or edema/fibrosis from inflammatory disorders and help define targets for ablation. LGE, in combination with structural assessment, can help differentiate true idiopathic outflow VT/PVCs from those caused by early stage disease secondary to more significant pathology, such as arrhythmogenic right ventricular cardiomyopathy or cardiac sarcoidosis. We review the benefits of cMRI with LGE for patients with VT/PVCs of outflow origin.

Original languageEnglish (US)
Pages (from-to)106-111
Number of pages6
JournalJournal of Atrial Fibrillation
Volume7
Issue number4
StatePublished - Dec 1 2014
Externally publishedYes

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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