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Figure 1 Position of the Multielectrode Balloon Array
Noncontact mapping of ventricular tachycardia in an 18-year-old boy (Patient #2) after surgical repair of tetralogy of Fallot (left: 30° right anterior oblique; right: 60° left anterior oblique). The multielectrode balloon array of the noncontact mapping system (MEA) has been inflated in the right ventricular outflow tract; the steerable mapping and ablation catheter (Map) is positioned at the anterior right ventricular free wall supported by a long precurved sheath. Additional catheters have been placed at the His bundle position (His) and in the coronary sinus (CS).
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