主动脉—下腔静脉轴线对左心房放射学测量的意义

Aorta-inferior vena cava axial line:Its radiologic significance in the measurement of left atrium

在40具成人尸体标本上对左心房及其周围结构进行了解剖学观测.左心房前、后径为2.8cm;左、中、右三份的上下径分别为4.4cm、5.4cm和5·8cm.依据观测结果,作者从应用解剖学和放射学角度,设计出一种在左侧位胸片上直接测量左心房前、后径和上、下径的方法.即主动脉-下腔静脉轴线.为证实该轴线的准确性和可行性,本文对100例正常成人和53例风湿性二尖瓣病变患者的左侧位胸片进行了观测.结果表明,主动脉-下腔静脉轴线的设计具有可行性,它对正确估价左心房及其增大程度具有临床实用价值.

The left atrium measured on 40 adult cadavers was averagely 2 .8cm in anteroposterior diameter and 5 .8cm in superoinferior diameter. Clinically the anteroposterior and superoinferi- or diameters of the left atrium can be determined by taking the aorta- inferior vena cava axial line as the marking line. With this method. 100 healthy adults and 53 cases of rheu- matic mitral stenosis were tested. The results show this method is reliable and practicable.