二维、三维超声联合应用诊断胎儿唇裂

目的探讨二维超声、三维超声诊断胎儿唇裂的价值。方法对我院门诊孕检的18～40周胎儿，常规二维超声观测胎儿鼻唇情况，然后应用三维超声实时动态面部成像。结果三维超声对18～24周胎儿唇裂成像清晰直观逼真，二维超声对18～24周胎儿唇裂，检查费时，检查者须有经验；三维超声对36～40周胎儿实时成像困难，二维超声则可通过非标准切面面部成像；三维超声及二维超声对24～36周胎儿均能有效成像。结论二维、三维超声均能对胎儿唇裂明确诊断。不同孕期二维超声与三维超声各有优势，三维超声在孕早期诊断唇裂有明显优势，二维超声在孕晚期略显优势。

Combination of two-dimensional and three-dimensional ultrasound in the diagnosis of fetal cheiloschisis

Objective To investigate the value of two-dimensional and three-dimensional ultrasound in the diagnosis of fetal cheiloschisis. Methods Two-dimensional ultrasound was used to observe nasolabial development, then three-dimensional ultrasound was applied to take dynamic facial imaging in out-patient women with pregnancy of 18-40 weeks. Results For 18-24 weeks fetal cheiloschisis,images from three-dimensional ultrasound were clear and visual, while the results of two-dimensional ultrasound were time-consuming and operator-dependent. For 36-40 weeks fetal cheiloschisis ,images from three-dimensional ultrasound were hard to obtain, while two-dimensional ultrasound could take facial imaging through nonstandard section. Both three-dimensional ultrasound and two-dimensional ultrasound took images of 24-36 weeks fetus effectively. Conclusion Both two-dimensional ultrasound and three-dimensional ultrasound diagnose fetal cheiloschisis effeciently. Two-dimensional ultrasound and three-dimensional ultrasound have advantages during different pregnanct periods. Three-dimensional ultrasound shows obvious advantages in the diagnosis of fetal cheiloschisis in early pregnancy, while the two-dimensional ultrasound shows a little advantage in the diagnosis of fetal cheiloschisis in late pregnancy.