Course directors 

Nicolaus Andratschke, Physician, University Hospital of Zurich, University of Zurich, Zurich, Switzerland

Heidi S. Rønde, Physicist; Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark

Teachers 

• Stefanie Corradini, Radiation Oncologist, University Hospital, LMU, Germany
• Anna Embring, Karolinska University Hospital, Department of Oncology, Stockholm, Sweden
• Giulia Marvaso, Radiation Oncologist, Istituto Europeo di Oncologia IRCCS Milan, University of Milan, Italy
• Ane Appelt, Medical Physicist, University of Copenhagen-Rigshospitalet, Copenhagen, Denmark
• Nick West, Newcastle Upon Tyne Hospitals NHS Foundation Trust, United Kingdom
• Eliana Vasquez Osorio, Computer Scientist, University of Manchester, United Kingdom

Contributors

• Aileen Duffton, Radiation Therapist (RTT), Beatson Cancer Centre, United Kingdom
• Dorota Gabrys, Radiation Oncologist, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Poland

This course will cover the considerable challenges surrounding the use of reirradiation; patient selection, radiobiology for reirradiation, dose constraints for normal tissues, tissue recovery factors, practical clinical workflows, image registration & dose accumulation, treatment planning and future directions and opportunities as well as considering patient perspectives. We will engage participants with a pre-course survey and a clinical challenge to be discussed by experts during the course. Breakout sessions will allow disciplinary specific challenges to be addressed in more detail.

This is a timely opportunity to highlight the challenges and discuss proposed solutions and how we move forward in a multiprofessional environment.

Learning Outcomes

By the end of this course participants should be able to: 

●Be able to define and classify clinical scenarios of reirradiation

●Understand the challenges involved in reirradiation, including the main clinical areas of concern, current international patterns of care and limitations and alternative to reirradiation

●Be able to perform, evaluate and assess dose accumulation; including critical use of rigid and deformable image registration, assessing mapping uncertainties, and radiobiological dose correction

●Understand the available evidence on reirradiation dose selection for tumor control and normal tissue toxicity

●Understand the potential role played by novel technologies, such as proton therapy

Course Content

The course will cover the following topics:

• Basic radiobiology relevant to reirradiation
• Imaging and image registration (rigid vs deformable)
• Fundamental principles of dose accumulation
• Fundamental aspect of the reirradiation workflow including dose planning and cumulative dose assessment
• Different treatment modalities (Photons, protons, brachytherapy, etc)
• Patient selection and patient perspectives
• Site specific clinical example cases

Prerequisites

Before commencing this course, you should have a solid understanding of oncological management of cancer patients in general and radiotherapy in particular. There will be a survey capturing the participants' experience in reirradiation.
In addition, participants will be asked to prepare patient cases they encountered in their clinical practice and wish to discuss during the course.

Teaching Methods

Approximately (3 online sessions & Live 2,5 days/ 20 h): 

Teaching methods will cover both lectures, case discussions, demonstrations and breakout sessions (both multiprofessionals and monoprofessionals)

Key Words

Reirradiation, Dose accumulation, Image registration, Patient selection, Target volume definition, workflow, recurrences

Draft programme will follow soon.

UMC Utrecht

Heidelberglaan 100, 3584 CX Utrecht

Membership

ESTRO members can order products at substantially reduced prices. To benefit from the member registration rate, you must subscribe for the ESTRO membership 2026 BEFORE registering to the course. To become an ESTRO member, benefit from the member registration rate and discover the many other member advantages, please visit the membership page.

Fees

* Members with specialty RadiationTherapist (RTT) may register at the In-Training fee

The fee includes the course material, coffees, lunches, and the social event.

Advance registration & payment are required.

Access to homework and/or course material will become available upon receipt of full payment.

Insurance and cancellation

Participants are strongly advised to take out their own personal insurance policy. ESTRO does not accept liability for individual medical, travel or personal accidents or incidents. Participants are strongly advised to take insurance policies to cover flight and accommodation cancellation penalties. ESTRO will not refund any travel or accommodation expenses.

For any cancellation made by the course participant, ESTRO School Events Cancellation Policy will be followed and all stated penalty fees will be applied.

Reduced fees

Members from emerging countries may register at a preferential rate of 350 Euro. Emerging country fee applies to individuals from low-income and lower-middle-income economies according to the World Bank listing here.

Additionally, all specialties from the following countries can benefit from this preferential rate: Albania, Belarus, Bosnia and Herzegovina, Bulgaria, Hungary, Macedonia, Moldova, Montenegro, Romania, Russian Federation, Serbia, Turkey, Ukraine.  In addition, medical physicists from Cyprus can email education@estro.org to apply for this fee.

The preferential rate of 350 Euro is granted automatically when you click on the  BOOK NOW  button and the three conditions below are met:

1. Only ESTRO members for 2026 are eligible (please make sure your 2026 membership is in order before you click on the BOOK NOW  button)
2. Only one course per person per year can be subsidized by ESTRO
3. Sponsored candidates are not entitled to reduced fees (the invoicing address has to be the one of the participant)  

 Please note:

• We can only guarantee a certain number of reduced fees per course
• Application deadlines are the same as early registration fees