CAJ | 학술논문

目的探讨胎重估测系统对胎儿体重估测的准确性.方法采用复旦大学电子工程系研制的胎重估测系统在多家医院进行胎儿体重估测,比较系统估测的结果和实际出生体重的误差,并比较系统估测与传统方法估测的准确性.结果采集610例胎儿产前图像和数据及产后体重,系统测量得出的双顶径、头围、腹围和股骨长度与胎儿出生体重的相关性比手动测量各指标的相关性有所提高,相关系数分别提高了0.08、0.17、0.09和0.05;与实际出生体重比较,用系统方法估测体重的绝对误差比传统方法的结果降低了44 9,误差的方差也降低了53 9;绝对百分比误差降低了1.8％,方差百分比降低了1.5％.结论胎重估测系统使得产前超声估测更加准确,可为临床提供更加可靠的数据.
목적 탐토태중고측계통대태인체중고측적준학성.방법 채용복단대학전자공정계연제적태중고측계통재다가의원진행태인체중고측,비교계통고측적결과화실제출생체중적오차,병비교계통고측여전통방법고측적준학성.결과 채집610례태인산전도상화수거급산후체중,계통측량득출적쌍정경、두위、복위화고골장도여태인출생체중적상관성비수동측량각지표적상관성유소제고,상관계수분별제고료0.08、0.17、0.09화0.05;여실제출생체중비교,용계통방법고측체중적절대오차비전통방법적결과강저료44 9,오차적방차야강저료53 9;절대백분비오차강저료1.8％,방차백분비강저료1.5％.결론 태중고측계통사득산전초성고측경가준학,가위림상제공경가가고적수거.
Objective To evaluate the accuracy of the fetal weight estimation system in terms of estimating the fetal weight.Methods The fetal weight estimation system developed by the Department of Electronic Engineering,Fudan University was applied to estimate the fetal weight in many hospitals,and the differences between the estimated results of the system and the actual weight of newborn fetuses,as well as the accuracy of the estimation system and the traditional estimation methods were compared.Results A total number of 610 cases were employed,with each case including the ultrasound images of fetus before birth,the corresponding measurement data and the newborn weight.The correlation coefficients between the weight of the newborn babies and the fetal parameters,which were measured by the estimation system in terms of the biparietal diameter,the head circumference,the abdomen circumference and the femur length,were higher than those obtained by manual annotations,with improvements of 0.08,0.17,0.09 and 0.05,respectively.The absolute error of the estimated weight of the system with respect to the actual weight was 44 g smaller than those estimated by traditional method,and the variance of the absolute error was 53 g smaller;while the corresponding absolute percentage error was 1.8％ lower,and the corresponding variance percentage was 1.5％ lower.Conclusions The fetal weight estimation system improves the accuracy of the prenatal ultrasound assessment and provides reliable information to clinical diagnosis.