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A usability study of an innovative optical device for the diagnosis of schistosomiasis in Nigeria

Bengtson, Michel, Onasanya, Adeola, Oyibo, Prosper, Meulah, Brice, Samenjo, Karl Tondo, Braakman, Ingeborg, Oyibo, Wellington and Diehl, J.C. 2022. A usability study of an innovative optical device for the diagnosis of schistosomiasis in Nigeria. Presented at: Global Humanitarian Technology Conference (GHTC), Santa Clara, CA, USA, 8-11 September 2022. Proceedings of Global Humanitarian Technology Conference. IEEE, pp. 17-22. 10.1109/GHTC55712.2022.9911019

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Schistosomiasis is a neglected tropical disease that is predominantly diagnosed by conventional microscopy in SubSaharan Africa. However, effective diagnosis by conventional microscopy is limited by multiple technical and logistic barriers. Alternative diagnostic techniques are needed. The Schistoscope is a digital optical device that has been designed to support microscopists for the detection of schistosomiasis in endemic resource-limited settings. Aim: A user-centered design approach was used to assess the usability and user-acceptance of the Schistoscope compared to conventional microscopy in the Federal Capital Territory, Abuja, Nigeria. In this study, usability and acceptance are defined as being easy-to-use, efficient, and suitable in the daily workflow by end-users. Methods: Using a qualitative conventional context analysis approach, a mixed-methods questionnaire was used to elucidate themes related to the usability and user-acceptance of the device. Participants included trained microscopists and university students (n=17). Results: Participants answered both ranked and open questions. Overall the device’s use was considered to be easy and acceptable in the routine workflow of a microscopist. The auto-scan feature was considered to have added value. Critical feedback regarding aesthetics of the device, particularly related to size, was noted by the participants. Conclusion: The usability approach used in this study elucidated valuable insights of end-users. The Schistoscope was very well perceived by both medical students and trained microscopists. Critical feedback will be used to further improve the next iterative design of the device.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: IEEE
ISBN: 9781665450980
Last Modified: 04 Dec 2023 11:30

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