A specially-designed, multiple-electrode loop ablation catheter (EP Technologies) is shown deployed in the left atrium during an endocardial, catheter-based Maze procedure. The view is left anterior oblique. The catheter emerges from the transeptal sheath and a loop is created after the tip of the catheter is pulled to the end of the sheath with a pull-wire as the body of the catheter is advanced into the atrium. There are 14 individual ablation coils on the catheter. Coils number 1, 4, 7, 8, 11, and 14 are more radiopaque to improve identification. An intracardiac echo probe can be seen in the body of the right atrium.