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Diagnostic Trial of a Vision Transformer-Based Ultrasound AI Model for Placenta Accreta Spectrum
Diagnostic Trial of Vision Transformer-Based End-to-End Ultrasound Artificial Intelligence Model for Assisting in the Diagnosis of Placenta Accreta Spectrum Disorders: An Investigator-Initiated Prospective Clinical Study
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Placenta accreta spectrum (PAS) is a life-threatening obstetric disorder involving abnormal placental invasion into the uterine wall, which is associated with severe maternal and neonatal complications. Despite advances in imaging, prenatal diagnosis remains challenging due to variability in ultrasound interpretation and reliance on operator expertise.
This study will establish a standardized ultrasound video acquisition protocol and develop a deep learning-based model using Vision Transformer (ViT) architecture to process dynamic ultrasound sequences. The model will be trained using clinically confirmed postpartum outcomes as reference labels.
The diagnostic performance of the system will be systematically evaluated, with the goal of improving consistency in interpretation and supporting more efficient clinical decision-making in prenatal PAS screening.
Studietype
Inschrijving (Geschat)
Contacten en locaties
Studiecontact
- Naam: Fang He, M.D, PhD
- Telefoonnummer: +86 13724831279
- E-mail: Gzhefang@gzhmu.edu.cn
Studie Locaties
-
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Guangdong
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Guangzhou, Guangdong, China, 510150
- Werving
- The Third Affiliated Hospital, Guangzhou Medical University
-
Contact:
- Fang He, MD, PhD
- Telefoonnummer: +86 13724831279
- E-mail: Gzhefang@gzhmu.edu.cn
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
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.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Diagnostic performance of the end-to-end Vision Transformer (ViT)-based ultrasound AI model for placenta accreta spectrum (PAS)
Tijdsspanne: At delivery (following confirmation of PAS status by surgical and/or pathological findings)
|
Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and area under the receiver operating characteristic curve (AUC) of the model.
|
At delivery (following confirmation of PAS status by surgical and/or pathological findings)
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Clinical Feasibility of the Standardized Ultrasound Video Recording Method
Tijdsspanne: At enrollment during the ultrasound examination
|
Completion Rate (Proportion of patients who successfully complete the standardized recording) and time consumption (Mean recording time)
|
At enrollment during the ultrasound examination
|
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Consistency and Efficiency Between the AI Model and Physician Diagnosis
Tijdsspanne: At enrollment during the ultrasound examination
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Diagnostic Consistency: Kappa coefficient used to evaluate the consistency between the AI model's diagnoses and those of experienced ultrasound physicians (Kappa > 0.75 indicates good agreement).
|
At enrollment during the ultrasound examination
|
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Safety of the AI Model
Tijdsspanne: At delivery, when PAS status and maternal outcomes are assessed
|
False Negative Rate: Proportion of missed PAS-positive patients and the impact on patient outcomes .
|
At delivery, when PAS status and maternal outcomes are assessed
|
Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- Ethics Review NO. 286A01
Plan Individuele Deelnemersgegevens (IPD)
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Informatie over medicijnen en apparaten, studiedocumenten
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