Nieminen M S
Ann Clin Res. 1975 Feb;7(1):1-16.
This paper details a new diagnostic ultrasound technique. The heart is scanned from several precordial positions so that regional function of the entire left ventricle is seen, as well as measuring the left ventricular dimensions and performance conventionally. This is called echoventriculography. It permits a quantitative "global scan" of the left ventricular function. It is based on 2:1 magnification, and careful adjustment of probe positions and gain and reject levels, particularly in recording the anterior wall segments. Four basic echobeam directions are defined to detect local wall motion patterns from 8 regions of the left ventricle, ie. on the upper and lower halves of the posterior, anterior, septal and lateral walls. 42 healthy subjects, 19 sedentary men, 14 physically well-trained men and 9 women were studied. Complete echoventriculographic scanning was achieved in 91%. The posterior wall motion was greater than that of the anterior. The regional wall velocities, amplitudes and wall thicknesses cross-correlated with each other. The interventricular septal motion was paradoxical or akinetic in over half of the well-trained men. Otherwise, the general contraction mode assessed from the different regions together was always synergic. Left ventricular dimensions and pump function were also separately analyzed in the above subgroups of healthy subjects.
本文详细介绍了一种新的诊断超声技术。从多个心前区位置对心脏进行扫描，这样既能观察到整个左心室的局部功能，又能按常规测量左心室的尺寸和性能。这被称为超声心动图描记术。它能对左心室功能进行定量的“整体扫描”。该技术基于2:1放大，并仔细调整探头位置、增益和抑制水平，尤其是在记录前壁节段时。定义了四个基本的超声束方向，以检测左心室8个区域的局部壁运动模式，即后壁、前壁、室间隔和侧壁的上半部分和下半部分。对42名健康受试者进行了研究，其中包括19名久坐不动的男性、14名体能良好的男性和9名女性。91%的受试者完成了完整的超声心动图扫描。后壁运动大于前壁。局部壁速度、幅度和壁厚相互之间存在交叉相关性。在超过半数的体能良好的男性中，室间隔运动呈矛盾运动或运动减弱。否则，从不同区域共同评估的总体收缩模式总是协同的。还对上述健康受试者亚组的左心室尺寸和泵功能进行了单独分析。
