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染色体微阵列分析和胆型分析用于产前诊断具有异常超声波软标记物的胎儿
Lina Liu1,2,3, Lingna She1,2,3, Zhiyuan Zheng2,3
1Department of Ultrasound, Meizhou People's Hospital, Meizhou Academy of Medical Sciences, Meizhou, China.
Journal of clinical laboratory analysis
|April 7, 2025
概括
染色体微阵列分析 (CMA) 与具有异常超声波标记的胎儿的型分析相比,显著改善了胎儿染色体异常的检测. CMA提供了更高的诊断产量,特别是在单个异常软标志物的情况下.
科学领域:
- 产前诊断 在产前诊断.
- 遗传学 是一个遗传学.
- 胎儿医学 胎儿医学
背景情况:
- 胎儿的异常超声波软标记可以表明潜在的染色体异常.
- 型分析在检测某些遗传变异方面存在局限性.
研究的目的:
- 为了评估染色体微阵列分析 (CMA) 与型分析的诊断价值.
- 为了确定异常超声波软标记的胎儿染色体异常的检测率.
主要方法:
- 对193个具有异常超声波软标记的胎儿进行了回顾性研究.
- 在胎儿样本上使用型分析和CMA进行遗传分析.
- 对染色体异常检测率的比较.
主要成果:
- 在10.9%的胎儿中,CMA检测到染色体异常,而在型分析中则为5.7%.
- 在胎儿中发现了形体和拷贝数变异 (CNVs),胎儿的鼻透光度增加和腹腔巨.
- CMA提供了5.2%的额外检测率.
结论:
- CMA显著提高了检测异常超声波软标记的胎儿染色体异常.
- 在单个异常标记的病例中,CMA对型分析的诊断优势显著.
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