关键词: 脑梗死; 房间隔缺损; 超声检查; 介入性; 血管造影术

Abstract: There are three major examination methods of diagnosis patent foramen ovale (PFO):transesophageal echocardiography (TEE), transthoracic echocardiography (TTE) and transcranialDoppler ultrasonography (TCD). Recently, contrast ultrasonography is applied extensively inclinical diagnosis, and it improves the diagnostic accuracy of PFO significantly. The paper willsummarize the value of three contrast enhanced ultrasound methods in diagnosing of PFO, andprovide more accurate and effective information for the clinicians.

Key words: Brain infarction; Heart septai defects; atrial; Ultrasonography; interventional; Angiography