【摘要】 目的　了解胎儿桡骨畸形的超声声像特征 ,提高胎儿桡骨畸形的产前检出率。方法　遵循连续顺序追踪超声法 (SCSA)检查胎儿肢体 ,并对引产后胎儿标本行模拟宫内超声检查和 (或 )X线检查。结果　采用SCSA法于产前共明确诊断 13例胎儿桡骨畸形 ,漏诊 3例产前均未严格遵循SCSA法检查。通过比较产前产后声像特征 ,发现桡骨畸形主要有桡骨完全缺如或发育不全和桡偏手畸形 ,从声像图上可将桡骨畸形可分为 3型 :Ⅰ型 ,桡骨完全缺如 ;Ⅱ型 ,桡骨部分缺如 ;Ⅲ型 ,桡骨发育不全。Ⅰ型桡骨完全缺如又可分为 :Ⅰa型 ,桡骨完全缺如并大拇指缺如 ;Ⅰb型 ,桡骨完全缺如并大拇指发育不全。结论　掌握SCSA法和桡偏手畸形特征是提高产前检出桡骨畸形的重要措施更多还原

【Abstract】 Objective To investigate prenatal ultrasound diagnosis of radial ray abnormalities and its clinical value. Methods All the fetus that entered usual prenatal ultrasound diagnosis were scanned each limb using a systematic continuous sequence approach (SCSA) with Acuson Sequoia 512 and GE Logiq 400 equipments. All the artificial aborted fetal radius malformation also had ultrasound examination in a simulating intrauterine estate and /or X-ray examination. Results Correctly diagnosis was made in 13 cases fetal radial ray abnormalities by prenatal ultrasonography following SCSA through the scaning course. All the fetal radial ray abnormalities had radius absence(only one skeleton in the forearm) or radius dysplasia and characteristic radial club hand. Ray abnormalities can be classifyied into three types on ultrasonography: type Ⅰ, radius absence; type Ⅱ,radius part absence; type Ⅲ,radius dysplasia.Conclusions Mastering characteristic radial club hand and SCSA are the keys to diagnose fetal radial ray abnormalities by prenatal ultrasonography.更多还原