Fig. 2From: Short-term results of percutaneous closure of a patent foramen ovale guided by transoesophageal echocardiography in patients with cryptogenic stroke: a retrospective studyNegative transthoracic UFT result after PFO occlusion. There is no microbubble in the LA. LV left ventricular, RA right atrial, LA left atrial, PFO patent foramen ovale, UFT ultrasound foaming testBack to article page