Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

Microscopic examination of Giemsa-stained blood films is key to quantifying and detecting malaria parasites but there can be difficulties in ensuring both a high-quality manual reading and inter-reader reliability. The EasyScan GO was developed as a potential solution to this, a microscopy device using machine-learning-based image analysis for automated parasite detection and quantification.

Three researchers using microscopes to study malaria parasites © Credit Mehul Dhorda

Recent WWARN research details the multi-centre, observational study  conducted to assess the performance of the EasyScan GO at 11 sites worldwide during 2018 and 2019. Sensitivity, specificity, accuracy of species detection and parasite density estimation were assessed with expert microscopy as the reference. Intra- and inter-device reliability of the device was also evaluated by comparing results from repeat reads on the same and two different devices.

The EasyScan GO met the WHO-TDR Research Malaria Microscopy competence Level 2 criteria in parasite detection and species identification accuracy; and Level 4 in terms of parasite quantification and false positive rates. All performance parameters were significantly affected by slide quality. Further software improvement is required to improve sensitivity at low parasitaemia and parasite density estimations.

The full story is available on the WWARN website

Read the publication 'Field evaluation of the diagnostic performance of EasyScan GO: a digital malaria microscopy device based on machine-learning' on the Malaria Journal website

Similar stories

Behind the Title: Becoming an Oxford Professor (at NDM), featuring Professor Phaik Yeong Cheah

The Behind the Title: Becoming an Oxford Professor (at NDM) series highlights the diverse journeys of our professors and the many paths that lead to academic leadership. By sharing their journeys we aim to showcase the breadth of backgrounds, disciplines, and experiences represented across the Department, demonstrating that there is no single route to becoming a professor at Oxford. In our first feature, we hear from Professor Phaik Yeong Cheah, Head of Bioethics and Engagement at the Mahidol Oxford Tropical Medicine Research Unit (MORU), Nuffield Department of Medicine, based in Bangkok.