Events
Clinical target volume definition in radiotherapy
We organized an international expert workshop on clinical target volume (CTV) definition in radiotherapy. The workshop took place at Monte Verità conference center in Ascona, Switzerland, was supported by Congressi Stefano Franscini and endorsed by ESTRO.
Dates: 15.03.2026 - 18.03.2026 Venue: Monte Verità conference center, Ascona, CH Organizer: Jan Unkelbach Co-organizers: Thomas Bortfeld, Vincent Grégoire, Jennifer DhontThe workshop focused on the development of quantitative computational tools to support and improve CTV definition. The format of the workshop was similar to the ESTRO physics workshops. About half the time was reserved for interactive and lively discussion.
See the full program and list of participants here (PDF, 61 KB).
Program overview
Sunday 15.03.2026
18:00 Welcome reception 19:00 DinnerMonday 16.03.2026
Nodal CTV definition (CTV-N)- Statistical models of lymphatic tumor progression
- Quantification of risk of occult metastases
- Applications in head&neck, breast, and prostate cancer
- Ongoing clinical trials on CTV-N personalization and volume deescalation
Tuesday 17.03.2026
Primary tumor CTV defintion (CTV-T)- Tumor progression within the prostate gland
- Automation of GTV-to-CTV expansion for glioma
- Ongoing clinical trials related to CTV-T definition
Wednesday 18.03.2026
Other topics- Dose prescription and probabilistic planning for the CTV
- Future directions
- Funding opportunities