胎儿超声心动图血流动力学参数与孕龄的关系

发布时间：2018-02-01 20:44

本文关键词： 胎儿超声心动描记术超声检查产前　出处：《中国医学影像技术》2015年01期 　论文类型：期刊论文

【摘要】：目的探讨孕20~34周正常胎儿各孕周心脏房室瓣口、大动脉瓣口、胎儿静脉系统及重要生理通道的血流峰值速度随孕龄增长的变化规律。方法回顾性分析2529名孕龄20~34周的正常单胎胎儿超声心动图资料,应用回归分析检测各参数与孕龄的相关性。结果正常胎儿二尖瓣口和三尖瓣口舒张早期E峰、舒张晚期A峰和E峰/A峰,主动脉瓣口和肺动脉瓣口收缩期峰值流速,主动脉弓横弓部和动脉导管收缩期峰值流速和舒张期峰值流速,肺静脉左心房开口处收缩期S峰、舒张期D峰和心房收缩期A峰均随孕周增加略有增加;下腔静脉收缩期S峰、舒张期D峰及心房收缩期A峰无明显变化。上述胎儿血流动力学参数均与孕周存在相关关系(P均0.05)。结论胎儿超声心动图技术可评价心脏血流动力学状态,为胎儿超声心动图检查提供指导。
[Abstract]:Objective to explore the atrioventricular valve orifice and aortic valve orifice of normal fetus at gestation of 20 weeks and 34 weeks. Changes of peak velocity of fetal venous system and important physiological channels with gestational age. Methods the echocardiographic data of 2529 normal fetuses at 2034 weeks of gestational age were analyzed retrospectively. Results the early E peak, late diastolic A peak and E / P A peak of normal fetal mitral and tricuspid orifice were detected by regression analysis. Peak systolic velocity of aortic valve orifice and pulmonary valve orifice, peak systolic velocity and diastolic peak velocity of aortic arch transverse arch and ductus arteriosus, systolic S peak of left atrial opening of pulmonary vein. Diastolic peak D and atrial systolic peak A increased slightly with the increase of gestational week. Systolic S peak of inferior vena cava. There was no significant change in diastolic peak D and atrial systolic peak A. the fetal hemodynamic parameters were correlated with gestational weeks (P < 0.05). Conclusion Fetal echocardiography can be used to evaluate cardiac hemodynamics. To provide guidance for fetal echocardiography.
【作者单位】：首都医科大学附属北京安贞医院超声科;
【基金】：国家自然科学基金(81301241)
【分类号】：R714.5;R540.45
【正文快照】： 胎儿超声心动图为目前无创性诊断胎儿心血管畸形的优势技术,其可通过评价胎儿心脏血流动力学诊断各种先天性心脏畸形、胎儿心律失常及重要生理通道病变,为优化围产期管理、选择合理分娩方式、指导出生后管理及治疗提供详细信息。本研究对胎龄20~34周胎儿进行规范化超声心动图

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