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In developing countries, it is difficult to rally a radiologist to conduct field studies. Here, we report how a radiologist taught a clinician to carry out the ultrasound examination as defined by the World Health Organization (WHO) record sheet for Schistosoma haematobium related lesions. In a population infected with S. haematobium, the learner and teacher performed two ultrasound exams and the results were compared. One hundred thirty-two children were prospectively included, during 8 ultrasonography sessions split over 23 days. After 51 examinations the learner's sensitivity was above 90%. After the fifth session the specificity reached 100% (results remained stable until the end of the study period). This study shows that a clinician can quickly learn how to carry out a simple ultrasound examination to gather the items needed for the follow-up of S. haematobium related lesions, suggesting that clinicians could implement networks of ultrasound-based surveillance on the field.
Authors' addresses: Philippe Bonnard, ONG Espoir Pour La Santé (EPLS), Saint Louis, Sénégal; Unité INSERM U1019, CIIC, Lille, France; Maladies Infectieuses et Tropicales, Hôpital Tenon (AP-HP), UPMC, Paris, France, E-mail: firstname.lastname@example.org. Samy Boutouaba, Modou Seck, and Jean-Pierre Dompnier, ONG Espoir Pour La Santé (EPLS), Saint Louis, Sénégal, E-mails: email@example.com, firstname.lastname@example.org, and email@example.com. Ibrahima Diakhate, Radiologie, Centre Hospitalier Universitaire FANN, Fann, Senegal, E-mail: firstname.lastname@example.org. Gilles Riveau, ONG Espoir Pour La Santé (EPLS), Saint Louis, Sénégal; Unité INSERM U1019, CIIC, Lille, France, E-mail: email@example.com.