| 焦北鱼,李琳,葛文,陈涛涛.胎儿脊髓末端中央管扩张产前超声表现及其转归[J].中国医学影像技术,2024,40(11):1651~1654 |
| 胎儿脊髓末端中央管扩张产前超声表现及其转归 |
| Prenatal ultrasonic manifestations and outcomes of fetal spinal cord terminal central duct dilation |
| 投稿时间：2024-05-11 修订日期：2024-09-03 |
| DOI：10.13929/j.issn.1003-3289.2024.11.005 |
| 中文关键词: 胎儿 脊髓 超声检查,产前 |
| 英文关键词:fetus spinal cord ultrasonography, prenatal |
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| 中文摘要: |
| 目的 观察胎儿脊髓末端中央管扩张产前超声表现及其转归。方法 回顾性分析8胎产前超声诊断的脊髓末端中央管扩张胎儿,观察超声表现及其转归。结果 8胎均见脊髓末端中央管不同程度扩张;之后囊性扩张区在4胎自行消失、1胎范围逐渐增大、1胎持续存在且无明显变化,在1胎扩张区末端回声由透声好逐渐变为回声不均,1胎孕晚期囊性扩张结构消失而呈中央管末端整体膨大。出生后6例新生儿查体未见明显异常,其中1例1月龄MRI提示终丝脂肪沉积、1例3月龄MRI提示椎管囊肿及终丝脂肪沉积;2例新生儿查体及MRI提示脊髓拴系综合征、终丝脂肪瘤。结论 胎儿脊髓末端中央管扩张产前超声均表现为脊髓圆锥及邻近结构囊性无回声区、边界清晰、透声好,而其转归有所不同。 |
| 英文摘要: |
| Objective To observe the prenatal ultrasonic manifestations and outcomes of fetal spinal cord terminal central duct dilation. Methods Data of 8 fetuses with spinal cord terminal central duct dilation detected with prenatal ultrasound were retrospectively analyzed, and the ultrasonic manifestations and outcomes were observed. Results Prenatal ultrasound showed varying degrees of spinal cord terminal central duct dilation in all 8 fetuses. The cystic dilation area disappeared spontaneously in 4 fetuses, gradually increased in 1 fetus, continued to exist without significant changes in 1 fetus, the echo at the end of the expansion zone gradually changed from good sound transmission to uneven in 1 fetus, and the cystic expansion structure disappeared and the central duct end enlarged as a whole in third trimester in 1 fetus. Among 8 newborns, no significant abnormality was detected with physical examination in 6 cases, including 1 case of 1-month-old MRI showed fatty filum terminale and 1 case of 3-month-old MRI showed spinal canal cyst and fatty filum terminale, the other 2 cases were diagnosed as tethered cord syndrome and filum terminale fibrolipoma with physical examination and MRI. Conclusion Prenatal ultrasonic manifestations of fetal spinal cord terminal central duct dilation included cystic hypoechoic area of the spinal cord cone and adjacent structures, with clear boundaries and good sound transmission. However, the outcomes of fetal spinal cord terminal central duct dilation were somewhat different. |
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