胎儿半椎体畸形的二维及三维产前超声诊断

目的：探讨二维及三维超声在胎儿半椎体畸形诊断中的应用及临床价值.方法：分析诊断的12例胎儿半椎体畸形的二维及三维超声图像特点.结果：胎儿半椎体畸形二维超声表现具有特征性,其三维超声可直观显示脊柱侧弯程度、准确定位病变椎体,是二维超声诊断的重要补充.12例胎儿半椎体畸形中,单发椎体畸形5例,多发椎体畸形7例,其中6例发生在胸段,3例发生在腰段,1例发生在骶尾段,1例颈段和胸段同时发生,1例胸段和腰段同时发生.4例为单纯半椎体畸形,8例合并其他系统畸形,分别是心脏畸形4例,泌尿系统畸形2例,肢体发育异常2例,神经系统畸形2例;羊水过少2例.结论：超声产前筛查胎儿半椎体畸形具有典型声像图表现,有重要的临床价值.

Application value of two-dimensional and three-dimensional ultrasound in prenatal diagnosis of hemivertebrae

Objective： To investigate the clinical value of two-dimensional and three-dimensional ultrasound in prenatal diagnosis of hemivertebrae. Methods： To analyze two-dimensional and three-dimensional uhrasonography imaging features in hemivertehrae. Results： Two-dimensional ultrasound has many characteristics of hemivertebrae. Three-dimensional ultrasound can be used to visualize the degree of scoliosis. Accurate positioning of the vertebrae, is important for performing two-dimen- sional ultrasound technique. Among the 12 fetuses, 5 fetuses had single vertebral deformity, 7 fetuses had multiple vertebral deformities, 6 cases occurred in the thoracic spine, 3 cases in the lumbar spine, l case in the sacral segment, 1 case in the cervical and thoracic, 1 case in the thoracic and lumbar. Besides the vertebral defect, 8 fetuses had additional anomalies, of which 4 fetuses had cardiac malformations, 2 fetuses had urinary tract abnormalities, 2 fetuses had abnormal limb develop- ment, 2 fetuses had central nervous system malformations, 2 fetuses had oligohydramnios. Conclusion： We found that hemiver- tebrac has typical ultrasonic features, ultrasound had significant clinical value.