Magnetic resonance imaging can be used for preprocedural assessment of complex anatomy for radiofrequency (RF) ablations, e.g., in a univentricular heart. This case report features the treatment of a young patient with a functionally univentricular heart who suffered from persistent sudden onset tachycardia with wide complexes that required RF ablation as treatment.
Keywords: Ablation; Fontan’s Operation; Magnetic resonance imaging; Univentricular heart; Ventricular tachycardia.