Geert Janssens

Associate Professor - medical

Strategic program(s):

Contact

gjansse3@umcutrecht.nl

Pure profile

Research groups

Pediatric radiation oncology

Research aim

To optimize radiotherapy in pediatric renal tumors (Wilms), neuroblastomas, and high-grade gliomas To better understand side effects from radiotherapy To reduce inequalities in radiotherapeutic care across SIOP Europe affliliated countries.

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Recent publications

All publications

Increased risk of subsequent neoplasm after hematopoietic stem cell transplantation in 5-year survivors of childhood acute lymphoblastic leukemia Aimée S R Westerveld, Pien Roesthuis, Helena J H van der Pal, Dorine Bresters, Marc Bierings, Jacqueline Loonen, Andrica C H de Vries, Marloes Louwerens, Maria M W Koopman, Marry M van den Heuvel-Eibrink, Margriet van der Heiden-van der Loo, Peter Hoogerbrugge, Geert O Janssens, Ronald R de Krijger, Cecile M Ronckers, Rob Pieters, Leontien C M Kremer, Jop C Teepen
Blood cancer journal, 2024, vol. 14

Overview of European standard clinical practice recommendations for multidiscplinary teams involved in the treatment of central nervous system tumours in children and adolescents – SIOPE Brain Tumour Group Maria Otth, Katrin Scheinemann, Thankamma Ajithkumar, Kristian Aquilina, Shivaram Avula, Hoong Wei Gan, Geert O. Janssens, Jurgen Lemiere, Giovanni Morana, Enrico Opocher, Stefan M. Pfister, Giorgio Porro, Felix Sahm, Ulrich Wilhelm Thomale, Michelle van Egmond-Ebbeling, Hanneke M. van Santen, Barry Pizer, Stefan Rutkowski
EJC Paediatric Oncology, 2024, vol. 3

Paediatric CBCT protocols for image-guided radiotherapy; outcome of a survey across SIOP Europe affiliated countries and literature review Daniella Elisabet Østergaard, Abigail Bryce-Atkinson, Mikkel Skaarup, Bob Smulders, Lucy Siew Chen Davies, Gillian Whitfield, Geert O. Janssens, Lisa Lyngsie Hjalgrim, Ivan Vogelius Richter, Marcel van Herk, Marianne Aznar, Maja Vestmø Maraldo
Radiotherapy and Oncology, 2024, vol. 190

Surface guided radiotherapy practice in paediatric oncology Enrica Seravalli, Petra S Kroon, Stephanie Bolle, Cathy Dunlea, Semi B Harrabi, Anne Laprie, Yasmin Lassen-Ramshad, Gillian Whitfield, Geert O Janssens
The British journal of radiology, 2024, vol. 97, p.1044-1049

Subsequent female breast cancer risk associated with anthracycline chemotherapy for childhood cancer Yuehan Wang, Cécile M. Ronckers, Flora E. van Leeuwen, Chaya S. Moskowitz, Wendy Leisenring, Gregory T. Armstrong, Florent de Vathaire, Melissa M. Hudson, Claudia E. Kuehni, Michael A. Arnold, Charlotte Demoor-Goldschmidt, Daniel M. Green, Tara O. Henderson, Rebecca M. Howell, Matthew J. Ehrhardt, Joseph P. Neglia, Kevin C. Oeffinger, Helena J.H. van der Pal, Leslie L. Robison, Michael Schaapveld, Lucie M. Turcotte, Nicolas Waespe, Leontien C.M. Kremer, Jop C. Teepen, Flora E. van Leeuwen, Florent de Vathaire, Helena J.H. van der Pal, Nadia Haddy, Ibrahima Diallo, K. Scott Baker, Amy Berrington de González, Miriam R. Conces, Louis S. Constine, Mike Hawkins, Jacqueline J. Loonen, Marloes Louwerens, Geert O. Janssens, Lene Mellemkjaer, Raoul Reulen, Jeanette F. Winther
Nature Medicine, 2023, vol. 29, p.2268-2277

The need for consensus on delineation and dose constraints of dentofacial structures in paediatric radiotherapy Angela Davey, Shermaine Pan, Abigail Bryce-Atkinson, Henry Mandeville, Geert O Janssens, Sarah M Kelly, Marinka Hol, Vivian Tang, Lucy Siew Chen Davies, Siop-Europe Radiation Oncology Working Group, Marianne Aznar
Clinical and translational radiation oncology, 2023, vol. 43