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| Accuracy comparison of ultrasound multi parameter estimation and two parameter estimation formula for prediction of newborn weight |
| Chengde City Maternal and Child Health Care Hospital, Chengde City, Hebei Province |
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Abstract Objective: Comparison the accuracy of ultrasonic multi parameter and two parameter estimation formula for estimating newborn weight. Methods: 130 full term parturients with single fetal in Chengde city maternal and child health care hospital were selected from February 2016 to October 2017. Their fetal BBI, head circumference, femur length and abdominal circumference were measured by ultrasound, and the common double parameter formula was used to predict the newborn weight. The accuracy of the two methods was evaluated by the standard of postnatal weight. Results: The coincidence rate of ultrasound multi-parameter used for predicting newborn weight (90.0%) was significant higher than that (70.8%) predicted by the clinical double parameters (P<0.05). There were 26 cases of macrosomia, and the coincidence rate of macrosomia predicted by ultrasonographic parameters was 88.5%, which signifficant higher than that (69.2%) by clinical double parameters (P<0.05). When newborn weight was as the gold standard, the area under the curve of clinical dual parameters prediction method was 0.719 (0.102-0.835), and that of ultrasound multiparameter prediction method was 0.830 (0.025-0.762), which had signifficent different (P<0.05). Conclusion: Ultrasound multi-parameter used for predicting newborn weight has higher accuracy, which can effectively predicted macrosomia, and can provide valuable reference for labor.
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