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本文采用七项超声测值并测量胎儿实际出生体重,经计算机回归处理,提供了六个体重预测方位,临床初步验证结果是令人满意的.六个方程联合运用使胎几体重预测值误差更小.当只用一个公式时,首选方程4,该公式将“孕龄”做为一个参数引入,使复相关系数提高(R=0.9999)标准差减小(S=±29.73),相对误差的标准为7.2%.七项超声指标经计算机选优后表明:股骨长(FL)、胸横径(FD_2)、腹横径(AD_2)三者对预测体重值影响较大.故此三项指标对预测结果影响较大,当临床应用时,将超声测值输入已编好程序的微机中,即可显示受检者的胎儿重量预测值及生理正常值,凡低于2SD者为低体重儿,从而可进行保健和治疗,达到围产监护的目的.
In this paper, seven ultrasound measurements and measurement of the actual birth weight of the fetus, the computer regression processing provides six body weight prediction position, the preliminary clinical validation results are satisfactory.The combination of six equations so that the fetal body weight prediction error more When only one formula is used, equation 4 is preferred, and the formula introduces “gestational age” as a parameter that reduces the standard deviation of the complex correlation coefficient (R = 0.9999) (S = 29.73) and the relative error The standard was 7.2% .The seven ultrasound indexes were selected by computer, which showed that the three parameters of femur length (FL), transverse diameter of the femur (FD_2) and abdominal transverse diameter (AD_2) Prediction results have a greater impact, when the clinical application, the ultrasound measurement input has been compiled a good computer program, you can display the subject’s fetal weight prediction and physiological normal value, where less than 2SD were low birth weight children, Which can be health care and treatment, to achieve the purpose of perinatal care.