Dissmann R, Brüggemann T, Wegscheider K, Biamino G
Z Kardiol. 1984 Nov;73(11):686-94.
Two-dimensional echocardiographic (2D-Echo) studies were performed in 51 healthy subjects to set up normal ranges of regional left ventricular (LV) wall motion for three different standard planes: the short axis (SA), recorded at a level between the mitral valve and the papillary muscles, the apical two-chamber view (2 CV) and the apical four-chamber view (4 CV). Wall motion analysis was performed using a fixed (Fix) as well as a floating reference system (Float). For regional wall motion, calculated by segmental area shortening, tolerance limits were estimated by using two well established statistical methods. The lowest coefficient of variation (V) was found for the SA (VFix = 0.18; VFloat = 0.11). The apical planes showed higher variations (2 CV: VFix = 0.20, VFloat = 0.20; 4 CV: VFix = 0.26, VFloat = 0.19). Defining the normal LV contraction ranges, a comparison of the reference systems showed advantages of the floating procedures, mainly in the SA and in the 4 CV. The obtained normal contraction ranges can be used for the evaluation of regional LV contraction abnormalities after acute myocardial infarction (AMI) if the 2D-Echo images are of excellent quality. We suggest an "index of dyssynergy" as a measure of wall motion abnormality.
对51名健康受试者进行了二维超声心动图（2D-Echo）研究，以建立三个不同标准平面的左心室（LV）壁节段运动的正常范围：短轴（SA），记录于二尖瓣和乳头肌之间的水平；心尖两腔视图（2 CV）和心尖四腔视图（4 CV）。使用固定（Fix）和浮动参考系统（Float）进行壁运动分析。对于通过节段面积缩短计算的节段壁运动，使用两种成熟的统计方法估计耐受限度。发现SA的变异系数（V）最低（VFix = 0.18；VFloat = 0.11）。心尖平面显示出更高的变异（2 CV：VFix = 0.20，VFloat = 0.20；4 CV：VFix = 0.26，VFloat = 0.19）。在定义正常左心室收缩范围时，参考系统的比较显示浮动程序具有优势，主要在SA和4 CV中。如果2D-Echo图像质量极佳，所获得的正常收缩范围可用于评估急性心肌梗死（AMI）后的左心室节段收缩异常。我们建议使用“不协调指数”作为壁运动异常的衡量指标。
