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Fig. 2A —42-year-old man with right-to-left shunt. Same patient as in
Figure 1A,
1B,
1C,
1D,
1E,
1F,
1G,
1H. With patent foramen ovale
(PFO) (A) and after transcatheter occlusion of PFO (B). Signal
intensity-time curve (A) shows early initial signal peak
(arrow) (167% of baseline signal) in left atrium (squares)
followed by second higher peak before peak in pulmonary vein
(circles) before PFO occlusion. Signal intensity-time curve after PFO
occlusion (B) shows only slight signal variability (up to 118% of
baseline signal) compared with baseline signal intensity.
