- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07643090
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
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
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.
Undersøgelsestype
Tilmelding (Anslået)
Kontakter og lokationer
Studiekontakt
- Navn: Fang He, M.D, PhD
- Telefonnummer: +86 13724831279
- E-mail: Gzhefang@gzhmu.edu.cn
Studiesteder
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Guangdong
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Guangzhou, Guangdong, Kina, 510150
- Rekruttering
- The Third Affiliated Hospital, Guangzhou Medical University
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Kontakt:
- Fang He, MD, PhD
- Telefonnummer: +86 13724831279
- E-mail: Gzhefang@gzhmu.edu.cn
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Diagnostic performance of the end-to-end Vision Transformer (ViT)-based ultrasound AI model for placenta accreta spectrum (PAS)
Tidsramme: At delivery (following confirmation of PAS status by surgical and/or pathological findings)
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Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and area under the receiver operating characteristic curve (AUC) of the model.
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At delivery (following confirmation of PAS status by surgical and/or pathological findings)
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Clinical Feasibility of the Standardized Ultrasound Video Recording Method
Tidsramme: At enrollment during the ultrasound examination
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Completion Rate (Proportion of patients who successfully complete the standardized recording) and time consumption (Mean recording time)
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At enrollment during the ultrasound examination
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Consistency and Efficiency Between the AI Model and Physician Diagnosis
Tidsramme: 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).
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At enrollment during the ultrasound examination
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Safety of the AI Model
Tidsramme: At delivery, when PAS status and maternal outcomes are assessed
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False Negative Rate: Proportion of missed PAS-positive patients and the impact on patient outcomes .
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At delivery, when PAS status and maternal outcomes are assessed
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Samarbejdspartnere og efterforskere
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Anslået)
Studieafslutning (Anslået)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- Ethics Review NO. 286A01
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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