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.

Go to group

Recent publications

All publications

Reply to comment on impact of deep learning on CT-based organ-at-risk delineation for flank irradiation in paediatric renal tumours Mianyong Ding, Matteo Maspero, Semi Harrabi, Emmanuel Jouglar, Sabina Vennarini, Timothy Spencer, Britta Weber, Henriette Magelssen, Karen Van Beek, Remus Stoica, Simonetta Saldi, Tom Boterberg, Patrick Melchior, Marry M. van den Heuvel-Eibrink, Geert O. Janssens
Clinical and translational radiation oncology, 2026, vol. 57

Impact of deep learning on CT-based organ-at-risk delineation for flank irradiation in paediatric renal tumours Mianyong Ding, Matteo Maspero, Semi Harrabi, Emmanuel Jouglar, Sabina Vennarini, Timothy Spencer, Britta Weber, Henriette Magelssen, Karen Van Beek, Remus Stoica, Simonetta Saldi, Tom Boterberg, Patrick Melchior, Marry M. van den Heuvel-Eibrink, Geert O. Janssens
Clinical and translational radiation oncology, 2026, vol. 56

Prevalence and Determinants of Impaired Bone Mineral Density and Fractures in the First National Dutch Wilms Tumor Survivor Cohort, a National DCCSS-LATER Study Francis S P L Wens, Demi T C de Winter, Geert O Janssens, Rens Litjens, Jenneke E van Atteveld, Rutger A J Nievelstein, Monique G G Hobbelink, Andrica C H de Vries, Jacqueline J Loonen, Eline van Dulmen-den Broeder, Helena J H van der Pal, Saskia M F Pluijm, Leontien C M Kremer, Margriet van der Heiden-van der Loo, Marloes Louwerens, Hanneke M van Santen, Daniel S Olsson, Imo Hoefer, Sjoerd A A van den Berg, Harm van Tinteren, Sebastian J C M M Neggers, Marry M van den Heuvel-Eibrink
Cancer Medicine, 2025, vol. 14

The many different clinical faces of acquired hypothalamic dysfunction Ichelle M.A.A. van Roessel, Sanne C. Hulsmann, Antoinette Y.N. Schouten-van Meeteren, Eelco W. Hoving, Geert O. Janssens, Martine F. Raphael, Eline A.M. Zijtregtop-Blom, Evelien de Vos-Kerkhof, Boudewijn Bakker, Wim J.E. Tissing, Hanneke M. van Santen
EClinicalMedicine, 2025, vol. 85

Late toxicity after upper abdominal radiotherapy in pediatric Wilms tumor and neuroblastoma survivors. A systematic review on behalf of SIOPEN and SIOP-RTSG Francis S P L Wens, Federica Zonca, Harm van Tinteren, Beate Timmermann, Anne Laprie, Tom Boterberg, Mark Gaze, Pei Lim, Danny Jazmati, Karin Dieckmann, Sabina Vennarini, Patrick Melchior, Britta Weber, Monica Ramos Albiac, Agata Szulc, Vasiliy Grigorenko, Henriette Magelssen, Karen van Beek, Norbert Graf, Vassilios Papadakis, Sebastian J C M M Neggers, Marry M van den Heuvel-Eibrink, Geert O Janssens, Roel Polak
Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology, 2025, vol. 209

Gene Expression Analysis of (Paired) Primary and Relapsed Wilms Tumor Samples to Unravel the Underlying Factors Driving Tumor Recurrence Alissa Groenendijk, Jarno Drost, Annelies M C Mavinkurve-Groothuis, Martine van Grotel, Geert O Janssens, Annemieke S Littooij, Alida F W van der Steeg, Marry M van den Heuvel-Eibrink, Lennart Kester, Ronald R de Krijger
Cancer Medicine, 2025, vol. 14