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

Conference paper (2022)

Authors

M.L. Bengtson Leiden University Medical Center
A.A. Onasanya Design for Sustainability - IDE
P.O. Oyibo Team Michel Verhaegen - Mechanical, Maritime and Materials Engineering
Brice Meulah Leiden University Medical Center
K.T. Samenjo Design for Sustainability - IDE
I.G. Braakman Student
Wellington Oyibo Andi Lagos State University
J.C. Diehl Design for Sustainability - IDE
Research Group
Design for Sustainability (IDE) (TU Delft)
Copyright: © 2022 M.L. Bengtson, A.A. Onasanya, P.O. Oyibo, Brice Meulah, K.T. Samenjo, I.G. Braakman, Wellington Oyibo Andi, J.C. Diehl
DOI: https://doi.org/10.1109/GHTC55712.2022.9911019
Usability Resource-limited settings Digital optical device Chistosomiasis Mixed-model questionnaire
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Published Date

2022

Language

English

Reuse Rights

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Faculty

Industrial Design Engineering

Department

Sustainable Design Engineering

Research Group

Design for Sustainability

Abstract

Schistosomiasis is a neglected tropical disease thatis predominantly diagnosed by conventional microscopy in Sub-Saharan 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 approachwas 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 mixedmethods 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.