Reichek N
Hypertension. 1987 Feb;9(2 Pt 2):II30-2. doi: 10.1161/01.hyp.9.2_pt_2.ii30.
Two-dimensional echocardiography is superior to M-mode echocardiography for estimation of left ventricular mass when left ventricular shape is markedly abnormal. Left ventricular mass measurement by two-dimensional echocardiography depends on careful experimental calibration of the echocardiographic instrument using either a standard phantom or actual heart slices, and appropriate geometric algorithm, and short axis images to determine myocardial cross-sectional area. Several well-validated algorithms are available, of which the short-axis area-length technique is the simplest. In hypertensive heart disease, in which left ventricular shape is usually close to normal, two-dimensional echocardiography may offer a smaller standard error than M-mode, but this issue requires further evaluation. Further, it is uncertain whether the incremental accuracy of two-dimensional echocardiography in hypertensive heart disease would offset its increased cost and complexity relative to M-mode echocardiography.
当左心室形状明显异常时，二维超声心动图在估计左心室质量方面优于M型超声心动图。通过二维超声心动图测量左心室质量取决于使用标准体模或实际心脏切片对超声心动图仪进行仔细的实验校准、合适的几何算法以及用于确定心肌横截面积的短轴图像。有几种经过充分验证的算法，其中短轴面积-长度技术是最简单的。在高血压性心脏病中，左心室形状通常接近正常，二维超声心动图可能比M型超声心动图具有更小的标准误差，但这个问题需要进一步评估。此外，二维超声心动图在高血压性心脏病中提高的准确性是否能抵消其相对于M型超声心动图增加的成本和复杂性尚不确定。
