脉冲多普勒超声结合时空图像相关性评价胎儿卵圆孔血流:横断面研究确定各胎龄胎儿卵圆孔血容量的正常参考范围。

IF 1.9 3区医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS

Cardiovascular Ultrasound Pub Date : 2021-05-05 DOI:10.1186/s12947-021-00247-0

Wenjuan Tang, Yuanchen Luo, Shi Zeng, Jiawei Zhou, Ganqiong Xu, Jianwen Yang

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引用次数: 2

摘要

目的:利用脉冲多普勒结合时空图像相关技术测定胎儿卵圆孔血流。方法:对440例妊娠20 ~ 40周的正常胎儿进行横断面研究。为了计算卵圆孔血流，采用脉冲多普勒超声获取卵圆孔血流速度-时间积分，采用时空图像相关绘制模式测量卵圆孔面积。卵圆孔血流计算为卵圆孔面积与速度-时间积分的乘积。结果:卵圆孔绝对血流量(ml/min)有孕龄特异性参考范围，妊娠20 ~ 30周呈指数增长，妊娠后期呈平缓增长趋势，而卵圆孔体重指标血流量(ml/min/kg)明显下降。中位体重指数卵圆孔血流量为320.82 ml/min/kg(平均319.1 ml/min/kg;SD 106.33 ml/min/kg)。结论:胎儿卵圆孔血流量的参考范围为妊娠20 ~ 40周。目前的数据显示，卵圆孔血流量可能有有限的容量增加，在最后三个月。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Evaluation of fetal foramen ovale blood flow by pulsed Doppler ultrasonography combined with spatiotemporal image correlation : To define the normal reference range of fetal foramen ovale blood volume for each gestational age: a cross-sectional study.

查看原文本刊更多论文

Objective: The objective of this study was to determine fetal foramen ovale blood flow utilizing pulsed Doppler combined with spatiotemporal image correlation.

Methods: A cross-sectional study was performed in 440 normal fetuses between 20 and 40 weeks of gestation. In order to calculate foramen ovale blood flow, the foramen ovale flow velocity-time integral was obtained by pulsed Doppler ultrasonography, and the foramen ovale area was measured by using spatiotemporal image correlation rendering mode. Foramen ovale blood flow was calculated as the product of the foramen ovale area and the velocity-time integral.

Results: Gestational age-specific reference ranges are given for the absolute blood flow (ml/min) of foramen ovale, showing an exponential increase from 20 to 30 weeks of gestation, and a flat growth trend during the last trimester, while the weight-indexed flow (ml/min/kg) of foramen ovale decreased significantly. The median weight-indexed foramen ovale blood flow was 320.82 ml/min/kg (mean 319.1 ml/min/kg; SD 106.33 ml/min/kg).

Conclusions: The reference range for fetal foramen ovale blood flow was determined from 20 to 40 weeks of gestation. The present data show that the volume of foramen ovale blood flow might have a limited capacity to increase during the last trimester.

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来源期刊

Cardiovascular Ultrasound CARDIAC & CARDIOVASCULAR SYSTEMS-

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Cardiovascular Ultrasound is an online journal, publishing peer-reviewed: original research; authoritative reviews; case reports on challenging and/or unusual diagnostic aspects; and expert opinions on new techniques and technologies. We are particularly interested in articles that include relevant images or video files, which provide an additional dimension to published articles and enhance understanding. As an open access journal, Cardiovascular Ultrasound ensures high visibility for authors in addition to providing an up-to-date and freely available resource for the community. The journal welcomes discussion, and provides a forum for publishing opinion and debate ranging from biology to engineering to clinical echocardiography, with both speed and versatility.