Evidence map›Paper›PMID 35932003›Full record

ArticleBMC pregnancy and childbirth2022

Automated prediction of early spontaneous miscarriage based on the analyzing ultrasonographic gestational sac imaging by the convolutional neural network: a case-control and cohort study.

Yu Wang, Qixin Zhang, Chenghuan Yin, Lizhu Chen, Zeyu Yang, Shanshan Jia, Xue Sun, Yuzuo Bai, Fangfang Han, Zhengwei Yuan

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Emerging applications of artificial intelligence for obstetric ultrasound: A scoping review.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Yu Wang *Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, P.R. China.
Qixin Zhang *College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, Liaoning, 110819, P. R. China.
Chenghuan YinCollege of Medicine and Biological Information Engineering, Northeastern University, Shenyang, Liaoning, 110819, P. R. China.
Lizhu ChenDepartment of Ultrasound, Shengjing Hospital, China Medical University, Shenyang, 110004, P.R. China.
Zeyu YangDepartment of Ultrasound, Shengjing Hospital, China Medical University, Shenyang, 110004, P.R. China.
Shanshan JiaKey Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, P.R. China.
Xue SunDepartment of Ultrasound, Shengjing Hospital, China Medical University, Shenyang, 110004, P.R. China.
Yuzuo BaiDepartment of Pediatric Surgery, Shengjing Hospital, China Medical University, Shenyang, 110004, P.R. China.
Fangfang HanCollege of Medical Information Engineering, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, P.R. China. hanff@gdpu.edu.cn.
Zhengwei YuanKey Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital, China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, P.R. China. yuanzw@hotmail.com.
China Medical University · CNNortheastern University · CNGuangdong Pharmaceutical University · CN

Funding

345 Talent Project M0305LiaoNing Revitalization Talents Program XLYC1902099National Key Research and Development Program of China 2021YFC2701003, 2021YFC2701104National Natural Science Foundation of China 81871219
6 · The paper itself

Abstract

backgroundIt is challenging to predict the outcome of the pregnancy when fetal heart activity is detected in early pregnancy. However, an accurate prediction is of importance for obstetricians as it helps to provide appropriate consultancy and determine the frequency of ultrasound examinations. The purpose of this study was to investigate the role of the convolutional neural network (CNN) in the prediction of spontaneous miscarriage risk through the analysis of early ultrasound gestational sac images.

methodsA total of 2196 ultrasound images from 1098 women with early singleton pregnancies of gestational age between 6 and 8 weeks were used for training a CNN for the prediction of the miscarriage in the retrospective study. The patients who had positive fetal cardiac activity on their first ultrasound but then experienced a miscarriage were enrolled. The control group was randomly selected in the same database from the fetuses confirmed to be normal during follow-up. Diagnostic performance of the algorithm was validated and tested in two separate test sets of 136 patients with 272 images, respectively. Performance in prediction of the miscarriage was compared between the CNN and the manual measurement of ultrasound characteristics in the prospective study.

resultsThe accuracy of the predictive model was 80.32% and 78.1% in the retrospective and prospective study, respectively. The area under the receiver operating characteristic curve (AUC) for classification was 0.857 (95% confidence interval [CI], 0.793-0.922) in the retrospective study and 0.885 (95%CI, 0.846-0.925) in the prospective study, respectively. Correspondingly, the predictive power of the CNN was higher compared with manual ultrasound characteristics, for which the AUCs of the crown-rump length combined with fetal heart rate was 0.687 (95%CI, 0.587-0.775).

conclusionsThe CNN model showed high accuracy for predicting miscarriage through the analysis of early pregnancy ultrasound images and achieved better performance than that of manual measurement.

Indexed as

Abortion, SpontaneousGestational SacCohort StudiesFemaleHumansInfantNeural Networks, ComputerPregnancyPregnancy Trimester, FirstProspective StudiesRetrospective StudiesUltrasonography, PrenatalDeep learningEarly pregnancySonographicSpontaneous abortion

Identifiers

PMID35932003
PMCPMC9354356
OpenAlexW4289878564

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.