Fig. 5From: Catheter navigation by intracardiac echocardiography enables zero-fluoroscopy linear lesion formation and bidirectional cavotricuspid isthmus block in patients with typical atrial fluttera RF ablation at the tricuspid valve (TV)–CTI junction; b, c ablation catheter dragged back to mid CTI, development of intramural hematoma at TV-CTI junction is noticed; d maximum size of intramural hematoma; e, f stable size of intramural hematoma throughout the rest of the procedureBack to article page