胎儿胼胝体发育不全的MRI诊断

Radiologic Practice(2018)

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Abstract
目的:探讨产前MRI在胎儿胼胝体发育不全(ACC)中的应用价值.方法:回顾性分析64例行头部MRI并诊断为ACC的胎儿,孕周23+1~38+1周,中位数孕周29周,采用三维容积内插快速T1WI序列、单次激发快速自旋回波序列和平衡式稳态自由进动序列扫描,分析MRI表现.结果:64例ACC胎儿中,胼胝体完全缺如者有49例,胼胝体部分缺如者15例.所有的ACC均伴有侧脑室形态异常或扩大.伴颅内其它畸形的胎儿28例.结论:胎儿MRI可以明确诊断ACC及其类型,是否伴发颅内其他畸形,对于胎儿胼胝体发育不全产前诊断及预后评价具有重要价值.
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