arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2401.01201cs.CVcs.LG
收藏

基于20周超声扫描的全检查AI胎儿生物测量估计

Whole-examination AI estimation of fetal biometrics from 20-week ultrasound scans

King’s College London(伦敦国王学院);Guy’s and St Thomas’ NHS Foundation Trust(盖伊和圣托马斯国民保健信托基金会);Imperial College London(伦敦帝国学院)

Lorenzo Venturini, Samuel Budd, Alfonso Farruggia, Robert Wright, Jacqueline Matthew, Thomas G. Day, Bernhard Kainz, Reza Razavi, Jo V. Hajnal

AI总结:

针对当前胎儿异常筛查依赖人工选择超声图像提取生物测量的问题,本文提出基于全扫描帧自动提取生物测量并通过贝叶斯方法聚合估计的范式,在1457份记录上实验达到人类水平性能且能提供校准良好的可信区间。

摘要:

当前胎儿异常筛查方法基于从单独选择的超声图像中提取的生物测量数据。本文介绍一种范式转变:通过聚合整个扫描中每帧自动提取的生物测量数据,无需操作员干预即可达到人类水平的生物测量性能。我们使用卷积神经网络(CNN)对超声视频记录的每帧进行分类,在可见适当解剖结构的每帧中测量胎儿生物测量数据,再用贝叶斯方法从大量测量值中估计每个生物测量的真实值,并概率性地剔除异常值。我们对1457份20周超声扫描记录(含4800万帧)进行回顾性实验,估计其中的胎儿生物测量数据,并将结果与超声医师扫描时的测量值比较。该方法在胎儿生物测量估计中达到人类水平性能,并能估计校准良好的可信区间,真实生物测量值预期位于此区间内。

英文摘要:

The current approach to fetal anomaly screening is based on biometric measurements derived from individually selected ultrasound images. In this paper, we introduce a paradigm shift that attains human-level performance in biometric measurement by aggregating automatically extracted biometrics from every frame across an entire scan, with no need for operator intervention. We use a convolutional neural network to classify each frame of an ultrasound video recording. We then measure fetal biometrics in every frame where appropriate anatomy is visible. We use a Bayesian method to estimate the true value of each biometric from a large number of measurements and probabilistically reject outliers. We performed a retrospective experiment on 1457 recordings (comprising 48 million frames) of 20-week ultrasound scans, estimated fetal biometrics in those scans and compared our estimates to the measurements sonographers took during the scan. Our method achieves human-level performance in estimating fetal biometrics and estimates well-calibrated credible intervals in which the true biometric value is expected to lie.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑