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Gréanne Leeftink is an assistant professor within the department Industrial Engineering and Business Information Systems, in the CHOIR research center at the University of Twente (Enschede).
Gréannes research focus is on healthcare process optimization, with a specific interest in cancer care and diagnostic processes, using Operations Management/Operations Research techniques.
In 2017, GrĂ©anne completed her PhD with CHOIR, as well as University Medical Center Utrecht. As part of her PhD program, she visited Rochesterâs Mayo Clinic (USA) for a 3 month research visit, on a scholarship of Prins Bernard Cultuurfonds. The focus of her PhD was on the optimization of the shared resources involved in oncology related health care processes, based on a personal NWO talent grant, and resulted in her thesis Why wait? Organizing integrated processes in cancer care .
Expertise Medicine and Dentistry Diagnosis Esophageal Cancer Laboratory Survival Therapeutic Procedure Nursing and Health Professions Computer Science Organisations Publications Criteria-based outpatient scheduling at a nephrology clinic: prospective evaluation of patient pre-assessment and its corresponding adaptive scheduling strategy (2024) BMC health services research, 24 . Article 1145. Klaas, R., Lok-Visser, J., Doornebal, J., Roelofs, T., Rachuba, S. & Leeftink, G. https://doi.org/10.1186/s12913-024-11615-7 Distributionally robust scheduling of stochastic knapsack arrivals (2024) Computers & operations research, 167 . Article 106641. Bos, H., Boucherie, R. J., Hans, E. W. & Leeftink, G. https://doi.org/10.1016/j.cor.2024.106641 Procesoptimalisatie van logistiek in de VVT (2024) [Non-textual form › Web publication/site]. ICT&health. Boucherie, R. J. & Leeftink, G. https://icthealth.nl/magazine/editie-3-2024/procesoptimalisatie-van-logistiek-in-de-vvt Outpatient clinic scheduling with limited waiting area capacity (2023) Journal of the Operational Research Society, 74 (2), 540-561. Otten, M., Dijkstra, S., Leeftink, G. , Kamphorst, B., Olde Meierink, A., Heinen, A., Bijlsma, R. & Boucherie, R. J.https://doi.org/10.1080/01605682.2021.1978347 Limited waiting areas in outpatient clinics: An intervention to incorporate the effect of bridging times in blueprint schedules (2022) BMJ Open Quality, 11 , 1-10. Article e001703. Dijkstra, S., Otten, M., Leeftink, G. , Kamphorst, B., Olde Meierink, A., Heinen, A., Bijlsma, R. & Boucherie, R. J.https://doi.org/10.1136/bmjoq-2021-001703 Optimising the booking horizon in healthcare clinics considering no-shows and cancellations (2022) International journal of production research, 60 (10), 3201-3218. Leeftink, G. , Martinez, G., Hans, E. W., Sir, M. Y. & Pasupathy, K. S.https://doi.org/10.1080/00207543.2021.1913292 Reducing failures in daily medical practice: Healthcare failure mode and effect analysis combined with computer simulation (2021) Ergonomics, 64 (10), 1322-1332. Leeftink, A. G. , Visser, J., de Laat, J. M., van der Meij, N. T. M., Vos, J. B. H. & Valk, G. D.https://doi.org/10.1080/00140139.2021.1910734 Making an Impact on Healthcare Logistics (2021) In Handbook of Healthcare Logistics: Bridging the Gap between Theory and Practice (pp. 1-13) (International Series in Operations Research & Management Science; Vol. 302). Springer. Zonderland, M. E., Leeftink, G. , Braaksma, A., Boucherie, R., Hans, E. W. & Kortbeek, N. https://doi.org/10.1007/978-3-030-60212-3_1 On the design, implementation, and feasibility of hospital admission services: The admission lounge case (2021) Omega, 100 . Article 102308. Veneklaas, W., Leeftink, A. G. , van Boekel, P. H. C. M. & Hans, E. W.https://doi.org/10.1016/j.omega.2020.102308 Research profiles Affiliated study programs Courses academic year 2024/2025 Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.
Courses academic year 2023/2024 
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