Patent Foramen Ovale and Closure Technique with the Amplatzer Occluder
Correct placement of an Amplatzer PFO occluder ascertained by the Pacman sign. The transesophageal echocardiogram at the left is depicted in the projection usually used on fluoroscopy during implantation. The septum secundum (SS) has to be bitten into by the left more cranial parts of the occluder disks. This reminds us of Pacman biting into a dot.