Kasper W, Rudolf H J, Meinertz T, Just H
Z Kardiol. 1985 Jun;74(6):335-40.
This study of 30 patients evaluates whether the size of the left atrium can be estimated echocardiographically with the precordial and suprasternal approach. Simultaneous imaging of the left atrium from both planes was possible in 24 patients. Angiographically, left atrial volume amounted to 107 +/- 69 ml for the minimal and 153 +/- 63 ml for the maximal left atrial size during the cardiac cycle. In each case, the diameter values of the left atrium were greatest from the suprasternal approach (p less than 0.001). All angiographic parameters were larger than the corresponding echocardiographic values (p less than 0.001). The study demonstrates that the size of the left atrium cannot be estimated reliably from biplane m-mode echocardiographic parameters.
这项针对30名患者的研究评估了是否可以通过心前区和胸骨上入路，利用超声心动图来估计左心房大小。24名患者能够同时从两个平面成像左心房。血管造影显示，在心动周期中，左心房最小容积为107±69毫升，最大容积为153±63毫升。在每种情况下，胸骨上入路测得的左心房直径值最大（p<0.001）。所有血管造影参数均大于相应的超声心动图值（p<0.001）。该研究表明，不能通过双平面M型超声心动图参数可靠地估计左心房大小。
