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Fig. 1G —42-year-old man with right-to-left shunt before and absence
of residual shunt after occlusion of patent foramen ovale (PFO). MR images
show results after transcatheter occlusion with Amplatzer device (AGA
Medical). Artificial loss of signal intensity caused by occluder device
(circle, E) is evident. In contrast to examination before
occlusion, enhancement of left atrium before enhancement of pulmonary vein due
to right-to-left shunt can be excluded.
