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首页> 外文期刊>Journal of diagnostic medical sonography: JDMS >Increasing the Detection Rate of Normal Fetal Cardiac Structures A Real-Time Approach
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Increasing the Detection Rate of Normal Fetal Cardiac Structures A Real-Time Approach

机译:提高正常胎儿心脏结构的检测率的实时方法

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摘要

The purpose of this study was to determine if acquiring real-time sweeps of the fetal heart would be a more effective method of identifying normal cardiac structures compared with using static images during routine second-trimester obstetric sonograms. Subjects were scanned using three different techniques. The static image acquisition (protocol A) included three images of the fetal heart Protocol B used two gray-scale sweeps through the fetal heart. Protocol C acquired three color loops of the fetal heart. The sweeps demonstrated a complete normal cardiac assessment in 71% of studies, compared with the static image and color Doppler techniques that completed a normal cardiac assessment in only 39% of studies, respectively. The real-time technique detected four chambers, the left ventricular outflow tract (LVOT), the right ventricular outflow tract (RVOT), the LVOT/RVOT crossover, and size and axis of the heart with a greater frequency than the static images and color loops in all cases. In addition, the real-time technique was able to demonstrate the pulmonary veins in 56% of cases compared with 3.6% for static images. The color Doppler acquisition demonstrated blood flow through the atrial-ventricular and semilunar valves in 86% of cases.
机译:这项研究的目的是确定与常规的妊娠中期产科超声检查中使用静态图像相比,获取胎儿心脏的实时扫描是否比确定静态心脏结构更有效的方法。使用三种不同的技术扫描对象。静态图像采集(协议A)包括三张胎儿心脏图像协议B使用两次穿过胎儿心脏的灰度扫描。方案C获得了胎儿心脏的三个色环。扫描显示,在71%的研究中,心脏完全正常评估,而静态图像和彩色多普勒技术分别仅在39%的研究中完成了正常心脏评估。实时技术检测到四个腔室,左心室流出道(LVOT),右心室流出道(RVOT),LVOT / RVOT交叉点以及心脏的大小和轴,其频率比静态图像和颜色的频率更高在所有情况下循环。此外,实时技术能够显示56%的病例的肺静脉,而静态图像能显示3.6%的病例。彩色多普勒采集显示86%的病例有血流通过心室和半月瓣。

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