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A pilot study to implement artificial intelligence-enabled, point-of-care obstetric ultrasound for gestational age estimation in Zambia: An evaluation protocol

Article scientifique 2026 Anglais

Résumé

BACKGROUND: Ultrasound is essential for accurate pregnancy dating, but its implementation in low- and middle-income countries is hindered by cost, infrastructure, and training barriers. The implementation of point-of-care ultrasound (POCUS) with artificial intelligence (AI) technology to accurately estimate gestational age can potentially address these barriers. We describe a protocol to evaluate the acceptability, feasibility, and fidelity of integrating AI-enabled POCUS for gestational age dating into routine antenatal care (ANC) in Zambia's Lusaka Province. METHODS: PIKABU (Piloting Integration, Knowledge and Acceptability of Baby Ultrasounds) is a multi-year pilot program to introduce and maintain AI-enabled POCUS in six ANC facilities across three districts. To evaluate these activities, we designed a prospective, mixed methods evaluation to assess acceptability, feasibility, and fidelity. Informed by the Consolidated Framework for Implementation Research, the evaluation comprises six separate components: focus-group discussions, in-depth interviews, patient register reviews, time motion studies, implementation strategy assessments, and patient exit surveys. Participants include patients, community members, and healthcare providers. By collecting baseline and follow-up data every four months, we are able to measure these outcomes in longitudinal fashion. DISCUSSION: Integrating portable, AI-enabled POCUS into routine ANC can improve gestational age dating and improve maternal health services in resource limited settings. Through its assessment of the acceptability, feasibility, and fidelity, this study provides novel insights about service implementation. Our findings are expected to inform policy and programs considering AI-enabled POCUS and support broader adoption across a range of healthcare settings.

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Gazzetta, E., Matenga, T., Martin, S., Mandona, N., Barada, R., Chileshe, M., Stringer, E., Chinyama, M., Chembo, B., Chi, H., Mwiche, A., Ng'anjo, S., Stringer, J., Chi, B., Kasaro, M. (2026). A pilot study to implement artificial intelligence-enabled, point-of-care obstetric ultrasound for gestational age estimation in Zambia: An evaluation protocol. https://doi.org/10.1371/journal.pone.0357962

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Auteur(s)

Erika Gazzetta Tulani Francis L. Matenga Stephanie L.-O. Martin Nelly M. Mandona Rassil Barada Modesta Chileshe Elizabeth Stringer Manze Chinyama Beene Chembo Harmony Chi Angel Mwiche Selia Ng'anjo Jeffrey S. A. Stringer Benjamin H. Chi Margaret Kasaro

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