RecruitingNot Applicable

Diagnostic Trial of a Vision Transformer-Based Ultrasound AI Model for Placenta Accreta Spectrum

China561 participantsStarted 2025-09-01

Plain-language summary

This study develops an end-to-end Vision Transformer (ViT)-based artificial intelligence system for ultrasound-based diagnosis of placenta accreta spectrum (PAS), aiming to improve the accuracy and efficiency of prenatal screening using standardized ultrasound video inputs.

Who can participate

Age range

18 Years – 45 Years

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Pregnant women aged between 18 and 45 years;
. Gestational age between 24 and 34 weeks;
. Pregnant women with a history of placenta previa;
. Pregnant women with an anterior placenta;
. Willingness to participate in the study and provision of written informed consent.

Exclusion criteria

. Failure to provide written informed consent;
. Presence of severe complications that precluded continuation of pregnancy;
. Inability to comply with study procedures for other reasons.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Diagnostic performance of the end-to-end Vision Transformer (ViT)-based ultrasound AI model for placenta accreta spectrum (PAS)

Timeframe: At delivery (following confirmation of PAS status by surgical and/or pathological findings)

Trial details

NCT IDNCT07643090

SponsorFANG HE

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2027-09-01

Contact for this trial

Fang He, M.D, PhD

+86 13724831279 Gzhefang@gzhmu.edu.cn

View on ClinicalTrials.gov More Placenta Accreta Spectrum trials