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首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Assessment of the third-trimester fetus using 3-dimensional volumes: a pilot study.
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Assessment of the third-trimester fetus using 3-dimensional volumes: a pilot study.

机译：使用3维量评估孕晚期胎儿：一项初步研究。

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摘要

PURPOSE: To examine whether the third-trimester fetus can be assessed sonographically using 3-dimensional (3D) volume data sets. METHODS: Twenty-seven consecutive third-trimester fetuses were evaluated. Fetuses were scanned using 2-dimensional (2D) imaging followed by 5 3D volume acquisitions. The initial scan was interpreted and reported based on the 2D images. The 3D volume data sets were independently reviewed offline several weeks later by 2 sonologists. Parameters evaluated included fetal presentation, placental location, amniotic fluid volume, fetal biometry including a calculation of estimated fetal weight, and major fetal anatomic structures. The result of the interpretation via 3D reconstruction of the volume from each of the 2 sonologists was compared with the original 2D sonography report. RESULTS: Fetal presentation, amniotic fluid volume, and placental location with respect to the cervix were correctly identified 100% of the time by each sonologist. The estimated fetal weight was within 10% of the 2D estimate 89% (95% CI, 0.71-0.98) of the time for sonologist A and 96% (95% CI, 0.81-0.99) of the time for sonologist B. The majority of major anatomic landmarks were adequately seen by both sonologists. CONCLUSION: Offline review of 3D volume data sets is a reliable method for determining fetal presentation, amniotic fluid volume, placental location, and estimating fetal weight in the third trimester.
机译：目的：检查是否可以使用3维（3D）体积数据集对第三胎胎儿进行超声检查。方法：评估了27例连续三个妊娠中期的胎儿。使用二维（2D）成像扫描胎儿，然后进行5次3D体积采集。初始扫描基于2D图像进行解释和报告。数周后，由2位超声专家对3D体积数据集进行了离线离线审查。评估的参数包括胎儿表现，胎盘位置，羊水量，胎儿生物特征（包括估计的胎儿体重的计算）和主要的胎儿解剖结构。通过对2位超声医师中每位的3D体积重建的解释结果与原始2D超声检查报告进行了比较。结果：每位超声医师均能正确地识别出胎儿的表现，羊水量和相对于子宫颈的胎盘位置。胎儿体重估计值在2D估计值的10％以内，对于超声医师A为89％（95％CI，0.71-0.98），对于超声医师B为96％（95％CI，0.81-0.99）。两位超声医师都充分看到了主要的解剖标志。结论：离线查看3D体积数据集是确定妊娠中期胎儿表现，羊水量，胎盘位置和估算胎儿体重的可靠方法。

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