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作者用超声微气泡造影,分别采用经食道超声心动图(TEE),经胸超声心动图(TTE)和经颅多普勒(TCD)诊断技术,检测49例急性缺血性脑卒中或短暂性脑缺血发作(TIA)患者的卵圆孔未闭,比较3种诊断方法的精确性。49例患者中,有明确原因者25例,隐原性19例,TIA5例。在超声造影TTE检查同时,进行右侧大脑中动脉TCD检查;然后TEE检查同时,又再进行TCD检查,把TEE检查作为金标准,评价TTE及TCD的灵敏性。
The authors used ultrasound microbubble imaging, respectively, by transesophageal echocardiography (TEE), transthoracic echocardiography (TTE) and transcranial Doppler (TCD) diagnostic techniques to detect 49 cases of acute ischemic stroke or transient Foramen ovale in patients with ischemic stroke (TIA), the accuracy of the three diagnostic methods were compared. Of the 49 patients, 25 had a definite cause, 19 had cryptogenicity, and 5 had TIA. At the same time of contrast TTE examination, right middle cerebral artery TCD examination was carried out. Then TEE examination was conducted at the same time, TCD examination was again conducted, TEE examination was taken as the gold standard to evaluate the sensitivity of TTE and TCD.