二维及三维超声检查胎儿面部结构对比分析

Study on the contrast of diagnosis value of two-dimensional and three-dimensional .sonography on the fetal facial structure

目的探讨应用二维和三维超声检查胎儿面部结构的临床价值。方法应用多普勒超声诊断仪对孕16～42周1805例胎儿进行二维、三维检查，观察胎儿面部结构，并与产后或引产后结果相比较。结果1805例中，孕23～35周后应用二维及三维超声观察胎儿颜面部结构，显示率差异无统计学意义（93．1％、95．1％，P〉0．05）。孕23周前三维显示率明显高于二维（84．8％、69．6％，P〈0．01），孕35周后二维显示率略高于三维，但差异无统计学意义（90．4％、88．7％，P〉0．05）。结论选择最佳时机检查胎儿面部结构，可以提高诊断准确率，利于优生优育。

Objective Study on the clinic value of the application of two-dimensional and three-dimensional sonography on observing the fetal facial structure. Methods Applying Voluson 730 three-dimensional probe surface imaging mode and two-dimensional probe to make sonography on 16-48 weeks fetus in 1805 eases, emphasized on observing the fetal facial structure,saving the image information, making three-dimensional reconstruction and com- paring the result of post partum and the result after induction of labor. Results In 1805 cases,applying two-dimensional and three-dimensional sonography to observe the facial structure of the fetus of 23--35 weeks,the display rate is 93.1% and 95.1% respectively,and there is no obvious difference between the two modes. The three-dimensional is higher than two-dimensional for the fetus less than 23 weeks,with the display rate 69.6 % and 84.8 % respective- ly,and the two-dimensional is a bit higher than three-dimensional for the fetus more than 35 weeks,with the display rate 90.4 % and 88.7 % respectively. One cleft lip case is excluded. Conclusion As long as mastering the optimum examination time and operation skill, there is no obvious difference between the display rate of two-dimensional and three-dimensional sonography on observing the fetal facial structure, the two modes can be complementary in the work to improve the accuracy of the diagnosis and be favorable for the prepotency.