De Vore G R, Siassi B, Platt L D
J Clin Ultrasound. 1985 Nov-Dec;13(9):619-25.
Eighty-two normal fetuses were scanned from 18 to 41 weeks of gestation. The following M-mode measurements were correlated with the femur length: end-diastolic right ventricular (r = 0.93), left ventricular (r = 0.92), biventricular outer (r = 0.94), and biventricular inner (r = 0.94) dimensions; tricuspid (r = 0.93) and mitral (r = 0.92) valve opening excursion; right (r = 0.76) and left (r = 0.70) ventricular wall thickness; and interventricular septal thickness (r = 0.75). Polynomial regression demonstrated that linear regression best described the data from which the mean and 5% and 95% confidence limits for predicted M-mode measurements were computed for the femur length.
对82例妊娠18至41周的正常胎儿进行了扫描。将以下M型测量值与股骨长度进行相关性分析：舒张末期右心室（r = 0.93）、左心室（r = 0.92）、双心室外径（r = 0.94）和双心室内径（r = 0.94）；三尖瓣（r = 0.93）和二尖瓣（r = 0.92）瓣口开放幅度；右心室（r = 0.76）和左心室（r = 0.70）室壁厚度；以及室间隔厚度（r = 0.75）。多项式回归表明，线性回归最能描述这些数据，据此计算出股骨长度预测M型测量值的均值、5%和95%置信限。
