产前超声联合MRI对一穴肛畸形的诊断价值
产前诊断,磁共振成像
颜璨?曹亚先?王海玉?刘金蓉?王哲?王红英【摘要】目的 總结胎儿一穴肛畸形(CM)产前超声及MRI的图像特征。方法 回顾性分析经产前系统超声初筛疑似CM的8例胎儿的临床影像资料,并与出生或引产后结果进行对照,总结其产前影像学特征,追踪胎儿妊娠结局。结果 经产后或引产后证实CM 5例,均于孕晚期发现,产前超声误诊3例,产前MRI漏诊1例。产前超声主要表现为肛门闭锁(5例)、盆腹腔中线位置囊肿(4例)、外生殖器模糊(3例)、双肾积水(3例)、肠管扩张(2例)、肠管回声增强(1例)。产前MRI检查示直肠未探及粪便高信号影(4例)、盆腹腔囊状信号影(4例)。孕妇引产2例,活产3例。5例CM胎儿会阴部仅有一个开口,肛门闭锁,外生殖器为女性外观,2例术中见三腔室汇合成1个共同通道开口于会阴。结论 肛门闭锁、盆腹腔中线部位囊肿是CM产前超声的特征性表现,当提示外生殖器异常、泌尿系统积水及肠道钙化斑时有助于诊断CM。MRI较超声更能清晰显示盆腔三个腔室之间的关系及直肠情况。
【关键词】产前诊断;超声;磁共振成像;一穴肛畸形
Diagnostic value of prenatal ultrasound combined with MRI in fetal cloacal malformations Yan Can, Cao Yaxian, Wang Haiyu, Liu Jinrong, Wang Zhe, Wang Hongying. Department of Ultrasound, Guangzhou Women and Childrens Medical Center, Guangzhou 510623, China
Corresponding author, Wang Hongying, E-mail: why0118@ 163. com
【Abstract】Objective To illustrate the imaging features of fetal cloacal malformations (CM) by ultrasound combined with magnetic resonance imaging (MRI). Methods Clinical imaging characteristics of 8 fetuses suspected with CM by prenatal systematic ultrasound screening were retrospectively analyzed ......
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