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Oyibo, P.O. (author), Agbana, T.E. (author), van Lieshout, Lisette (author), Oyibo, Wellington (author), Diehl, J.C. (author), Vdovin, Gleb (author)Traditionally, automated slide scanning involves capturing a rectangular grid of field-of-view (FoV) images which can be stitched together to create whole slide images, while the autofocusing algorithm captures a focal stack of images<br/>to determine the best in-focus image. However, these methods can be timeconsuming due to the need for X-, Y-...journal article 2024
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Onasanya, A.A. (author), Bengtson, Michel (author), Agbana, T.E. (author), Oladunni, Opeyemi (author), van Engelen, J.M.L. (author), Oladepo, Oladimeji (author), Diehl, J.C. (author)Designing new and inclusive diagnostic tools to detect Neglected Tropical Diseases (NTDs) to achieve rational disease control requires a co-design process where end-users’ input is important. Failure to involve all potential end-users in new diagnostics for NTDs can result in low use and adoption failure, leading to persistent infection hot...journal article 2023
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Makau-Barasa, Louise (author), Assefa, Liya (author), Solomon, Jacob (author), A-Enegela, Juliana (author), Damen, James G. (author), Popoola, Samuel (author), Diehl, J.C. (author), Vdovin, Gleb (author), Agbana, T.E. (author)In this research, we report on the performance of automated optical digital detection and quantification of Schistosoma haematobium provided by AiDx NTDx multi-diagnostic Assist microscope. Our study was community-based, and a convenient sampling method was used in 17 communities in Abuja Nigeria, based on the disease prevalence information...journal article 2023
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Oyibo, P.O. (author), Meulah, Brice (author), Bengtson, Michel (author), Lieshout, Lisette van (author), Oyibo, Wellington (author), Diehl, J.C. (author), Vdovin, Gleb (author), Agbana, T.E. (author)Purpose: Automated diagnosis of urogenital schistosomiasis using digital microscopy images of urine slides is an essential step toward the elimination of schistosomiasis as a disease of public health concern in Sub-Saharan African countries. We create a robust image dataset of urine samples obtained from field settings and develop a two-stage...journal article 2023
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- Agbana, T.E. (author), Onasanya, A.A. (author) report 2022
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Oyibo, P.O. (author), Jujjavarapu, S. (author), Meulah, Brice (author), Agbana, T.E. (author), Braakman, I.G. (author), van Diepen, Angela (author), Bengtson, M.L. (author), van Lieshout, Lisette (author), Andi, Wellington Oyibo (author), Vdovin, Gleb (author), Diehl, J.C. (author)For many parasitic diseases, the microscopic examination of clinical samples such as urine and stool still serves as the diagnostic reference standard, primarily because microscopes are accessible and cost-effective. However, conventional microscopy is laborious, requires highly skilled personnel, and is highly subjective. Requirements for...journal article 2022
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Meulah, Brice (author), Oyibo, P.O. (author), Bengtson, M.L. (author), Agbana, T.E. (author), Laclong Lontchi, Roméo Aimé (author), Adegnika, Ayola Akim (author), Andi, Wellington Oyibo (author), Hokke, C.H. (author), Diehl, J.C. (author), van Lieshout, Lisette (author)Conventional microscopy is the standard procedure for the diagnosis of schistosomiasis, despite its limited sensitivity, reliance on skilled personnel, and the fact that it is error prone. Here, we report the performance of the innovative (semi-)automated Schistoscope 5.0 for optical digital detection and quantification of Schistosoma...journal article 2022
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Makau-Barasa, Louise (author), Aderogba, Moses O. (author), Bell, David (author), Popoola, Samuel (author), Agbana, T.E. (author), Diehl, J.C. (author), Vdovin, Gleb (author)To achieve the WHO’s goal of sustained elimination of Lymphatic Filariasis disease, there is the need for accurate diagnostic device especially in areas of low-intensity infections. This project, which is a collaboration of the Nigerian Federal Ministry of Health (FMoH), AiDx and funded by THE END FUND is exploring the performance capacity of...report 2022
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Meulah, Brice (author), Bengtson, Michel (author), van Lieshout, Lisette (author), Hokke, C.H. (author), Kreidenweiss, Andrea (author), Diehl, J.C. (author), Adegnika, Ayola Akim (author), Agbana, T.E. (author)Diagnosis of soil-transmitted helminth (STH) and schistosome infections relies largely on conventional microscopy which has limited sensitivity, requires highly trained personnel and is error-prone. Rapid advances in miniaturization of optical systems, sensors and processors have enhanced research and development of digital and automated...review 2022
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van Grootheest, D.N. (author), Agbana, T.E. (author), Diehl, J.C. (author), van Diepen, Angela (author), Bezzubik, Vitalii (author), Vdovin, Gleb (author)Significance: Particle field holography is a versatile technique to determine the size and distribution of moving or stationary particles in air or in a liquid without significant disturbance of the sample volume. Although this technique is applied in biological sample analysis, it is limited to small sample volumes, thus increasing the number...journal article 2021
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Agbana, T.E. (author)Malaria remains an important cause of high morbidity and mortality worldwide. According to World Health Organisation (WHO) malaria report for 2017, malaria accounted for the death of 435,000 people. It is the leading cause of death among pregnant women and little children. 11% of maternal and 20% of under–five deaths are attributed to malaria...doctoral thesis 2020
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Sluiter, M.M. (author), Onasanya, A.A. (author), Oladepo, Oladimeji (author), van Engelen, J.M.L. (author), Keshinro, Myryam (author), Agbana, T.E. (author), Van, G.Y. (author), Diehl, J.C. (author)Schistosomiasis is a treatable and preventable neglected tropical disease of Public Health importance affecting over 200 million people worldwide while Nigeria is one of the high burden countries. Currently, available diagnostic tests are cumbersome, low in sensitivity and not field-adaptable given the high skills required that are not available...conference paper 2020
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Agbana, T.E. (author), Nijman, Patrick (author), Hoeboer, M.D.B. (author), van Grootheest, D.N. (author), van Diepen, Angela (author), van Lieshout, Lisette (author), Diehl, J.C. (author), Verhaegen, M.H.G. (author), Vdovin, Gleb (author)We present a simple method for the diagnosis of urinary schistosomiasis using an in-line lensless holographic microscope combined with flow cytometry technique. Using simple image processing algorithms and binary image classifier, our system provides automated detection of Schistosoma haematobium eggs in infected urine samples. Registered...conference paper 2020
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Heemels, Alex (author), Agbana, T.E. (author), Pereira, S.F. (author), Diehl, J.C. (author), Verhaegen, M.H.G. (author), Vdovin, Gleb (author)Fourier Ptychography is a computational imaging technique able to decouple high resolution from wide field of view, bypassing the diffraction limit of the microscope. Since it does not rely on high precision mechanics or fluorescent imaging, it is of practical interest for implementation in low scale devices. Despite its gains, realizing a...conference paper 2020
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Agbana, T.E. (author), Diehl, J.C. (author), van Pul, Fiona (author), Khan, Shahid M. (author), Patlan, Vsevolod (author), Verhaegen, M.H.G. (author), Vdovin, Gleb (author)We have optimized the design and imaging procedures, to clearly resolve the malaria parasite in Giemsa-stained thin blood smears, using simple low-cost cellphone-based microscopy with oil immersion. The microscope uses a glass ball as the objective and the phone camera as the tube lens. Our optimization includes the optimal choice of the ball...journal article 2018
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Taballione, Caterina (author), Agbana, T.E. (author), Vdovin, Gleb (author), Hoekman, Marcel (author), Wevers, Lennart (author), Kalkman, J. (author), Verhaegen, M.H.G. (author), van der Slot, Peter J.M. (author), Boller, Klaus-Jochen (author)Wavelength meters are central for many applications such as in telecommunication systems or laser monitoring. The primary function of a wavelength meter is to provide an output signal that changes sensitively with the wavelength of the input light. Of central importance is the reproducibility of the output signal even in the presence of external...poster 2017
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- Agbana, T.E. (author), Gong, H. (author), Amoah, A.S. (author), Bezzubik, V (author), Verhaegen, M.H.G. (author), Vdovin, Gleb (author) journal article 2017
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- Taballione, C. (author), Agbana, T.E. (author), Vdovin, Gleb (author), Hoekman, M (author), Wevers, L. (author), Kalkman, J. (author), Verhaegen, M.H.G. (author), van der Slot, P.J.M. (author), Boller, KJ (author) conference paper 2017
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Gong, H. (author), Agbana, T.E. (author), Pozzi, P. (author), Soloviev, O.A. (author), Verhaegen, M.H.G. (author), Vdovin, Gleb (author)In this Letter, we show that a Shack-Hartmann wavefront sensor can be used for the quantitative measurement of the specimen optical path difference (OPD) in an ordinary incoherent optical microscope, if the spatial coherence of the illumination light in the plane of the specimen is larger than the microscope resolution. To satisfy this...journal article 2017
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Agbana, T.E. (author), Yang, H. (author), Soloviev, O.A. (author), Vdovin, Gleb (author), Verhaegen, M.H.G. (author)This paper presents experimental results of a static aberration control algorithm based on the linear relation be- tween mean square of the aberration gradient and the second moment of point spread function for the generation of control signal input for a deformable mirror (DM). Results presented in the work of Yang et al.1 suggested a good...conference paper 2016
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