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人们普遍认为气管分叉角度加大提示左房增大,其临床意义尚有争论。作者研究气管分叉角与超声下左房大小的关系,以确定其敏感性和特异性。 选择具有心脏超声及胸部X线平片且病情稳定的122例,两种检查方法间隔时间不超过一个月。可引起支气管解剖位置改变的疾病如肺纤维化、肺不张、肺肿瘤、胸腔积液和心包积液均不包括在本组
It is generally believed that the increased tracheal bifurcation angle prompted the left atrial enlargement, its clinical significance is still controversial. The authors studied the relationship between tracheal bifurcation angle and left atrial size under ultrasound to determine its sensitivity and specificity. Select with cardiac ultrasound and chest X-ray film and stable condition in 122 cases, the two methods of inspection interval less than one month. Diseases that cause changes in bronchial anatomy, such as pulmonary fibrosis, atelectasis, lung tumors, pleural effusion, and pericardial effusion are excluded from this group