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Figure 2 A series of steady-state free-precession sequences in a patient with patent foramen ovale and atrial septal aneurysm. (A) A four-chamber view and (B) a short-axis view before interventional closure. The two arrows indicate the separated atrial septum. The same patient at 12-month follow-up after transcatheter closure in (C) a four-chamber view and (D) a short-axis view. The arrows point at the closure device (for cine sequences, see Online Videos 1 to 4).