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Vienna, Austria

ESTRO 2025

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100 Sessions
Sunday
May 04
10:30 - 11:30
Lehar 1-3
The heart in the right spot
Martin Fast, The Netherlands;
Sandra Hol, The Netherlands
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Physics
Sunday
May 04
10:30 - 11:30
Haydn
The RTT revolution: Driving excellence through education
Claudio Votta, Italy;
Mary Coffey, Ireland
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
RTT
Sunday
May 04
10:30 - 11:30
Strauss 3
Breast & Prostate brachytherapy
Cristina Gutiérrez Miguélez, Spain;
Hathal Haddad, Germany
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Brachytherapy
Breast
Sunday
May 04
10:30 - 11:30
Stolz 1
Upper GI 2
Fatjona Kraja, Albania;
Florence Huguet, France
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Clinical
GI
Sunday
May 04
10:30 - 11:30
Business 1-2
Improving accuracy of particle therapy
Armin Lühr, Germany;
Carles Gomà, Spain
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Physics
CNS / Dosimetry & QA
Sunday
May 04
10:30 - 11:30
Stolz 2
Track the tumour, reduce the motion, shrink the margin
Luise A. Künzel, Germany;
Sebastian Klüter, Germany
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Physics
Positioning & Immobilisation
Sunday
May 04
10:30 - 11:30
Business 3-4
Sarcoma / Skin cancer / Malignant melanoma & Haematology
Daniela Greto, Italy;
Grzegorz Matuszny, Poland
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Clinical
Skin / Soft Tissue
Sunday
May 04
11:40 - 12:45
Plenary Hall
Joint Green Journal - The Lancet Oncology: Top Clinical Trials
David Collingridge, United Kingdom;
Pierre Blanchard, France
This session will celebrate the best abstract submitted to each track. Join us in congratulating the winners during this plenary session and listen to the top-level presentations.
Proffered Papers
Interdisciplinary
Dosimetry & QA / GI / SBRT
Sunday
May 04
11:40 - 12:40
Haydn
Second breast-conserving surgery: What should I do? Vademecum for a perfect multidisciplinary meeting
Jean-Michel Hannoun-Levi, France
Multidisciplinary Tumour Board
Clinical
Breast / Reirradiation
Sunday
May 04
13:00 - 14:00
Schubert
Physics Assembly & Networking
Assembly
Physics
Dosimetry & QA / FLASH
Sunday
May 04
12:55 - 13:25
Stolz 1
Lung
Meet & Greet sessions provide journey participants with the opportunity to network and to meet ESTRO focus group representatives who developed these journeys. Registration for Meet & Greet sessions is required via the Journeys tab on the ESTRO 2025 website.
Meet & Greet
Lung
Sunday
May 04
12:55 - 13:25
Business 1-2
Gynaecology
Meet & Greet sessions provide journey participants with the opportunity to network and to meet ESTRO focus group representatives who developed these journeys. Registration for Meet & Greet sessions is required via the Journeys tab on the ESTRO 2025 website.
Meet & Greet
Gynaecology
Sunday
May 04
12:55 - 13:25
Stolz 2
Reirrradiation
Meet & Greet sessions provide journey participants with the opportunity to network and to meet ESTRO focus group representatives who developed these journeys. Registration for Meet & Greet sessions is required via the Journeys tab on the ESTRO 2025 website.
Meet & Greet
Reirradiation
Sunday
May 04
12:55 - 13:25
Business 3-4
Skin & Soft Tissue
Meet & Greet sessions provide journey participants with the opportunity to network and to meet ESTRO focus group representatives who developed these journeys. Registration for Meet & Greet sessions is required via the Journeys tab on the ESTRO 2025 website.
Meet & Greet
Skin / Soft Tissue
Sunday
May 04
13:30 - 14:00
Stolz 1
SBRT
Meet & Greet sessions provide journey participants with the opportunity to network and to meet ESTRO focus group representatives who developed these journeys. Registration for Meet & Greet sessions is required via the Journeys tab on the ESTRO 2025 website.
Meet & Greet
SBRT
Sunday
May 04
13:30 - 14:00
Stolz 2
Urology
Meet & Greet sessions provide journey participants with the opportunity to network and to meet ESTRO focus group representatives who developed these journeys. Registration for Meet & Greet sessions is required via the Journeys tab on the ESTRO 2025 website.
Meet & Greet
Urology
Sunday
May 04
14:15 - 14:40
Plenary Hall
C Regaud Award
Award Lecture
Interdisciplinary
Dosimetry & QA / Urology
Sunday
May 04
14:40 - 15:05
Plenary Hall
Iridium 192 Award
Award Lecture
Interdisciplinary
Dosimetry & QA / Gynaecology / Urology
Sunday
May 04
15:15 - 16:30
Mahler
Joint ESTRO-EADO: Behind local control: Modern integrated opportunities in the management of non-melanoma skin cancer
Agata Rembielak, United Kingdom;
Peter Kölblinger, Austria
The joint ESTRO-EADO symposium is aimed at highlighting the importance of close cooperation between dermato-oncologist, surgeons, radiation / clinical oncologists, onco-geriatricians and allied health care professionals such as medical physicists, radiographers and nurses. Such cooperation would not be possible without continued mutual understanding of advancements in each speciality, allowing to work together towards a common goal. This year’s theme of the joint ESTRO-EADO symposium is “Behind local control: Modern integrated opportunities in the management of non-melanoma skin cancer”. The first talk will cover quality of life studies in non-melanoma skin cancer and personalized integrated care. The next session will give an overview of Mohs surgery, a microscopically margin controlled procedure to treat skin cancer that revolutionised skin surgery. Following that the decision-making experiment will be discussed as an alternative approach to harmonise clinical practice in the areas of skin cancer management where recommendations are not uniform. Finally, we will hear from medical physicist describing their work behind the scene in skin radiotherapy and from radiographer how they support patient journey during and after skin radiotherapy.
Symposium
Interdisciplinary
Skin
Sunday
May 04
15:15 - 16:30
Brahms
Therapy-shaping of the tumour microenvironment: How does the tumour-host immune cells interactions affect radiotherapy outcome?
Michele Mondini, France;
Zuzanna Nowicka, Poland
This session will explore the complex interplay between radiotherapy (RT) and the tumor microenvironment (TME), focusing on stromal-mediated immunosuppression, metabolic rewiring, and immune escape mechanisms. Key topics include the role of cancer-associated fibroblasts (CAFs), tumor associated macrophages (TAMs) and tumor infiltrating lymphocytes (TILs) in promoting radio-sensitivity vs resistance, the impact of RT on the tumor stroma, TME reshaping by low-dose RT (LDRT), and strategies to enhance radio-immunotherapy synergy including by targeting metabolic enzymes. Additionally, speakers will explore the role of hypoxia, particularly in glioblastoma, and of dysregulated purinergic signaling in radiation-induced immune escape.
Symposium
Radiobiology
Sunday
May 04
15:15 - 16:30
Plenary Hall
Breast cancer in young patients
Fran Duane, Ireland;
Ivica Ratosa, Slovenia
This session will address how carrying BRCA mutations may effect reproductive potential, fertility preservation strategies, and the safety of pregnancy. It will address risk reducing surgery and delve into how loco-regional therapy for those diagnosed with breast cancer may be individualised. Factors influencing surgery and the benefits and risks of breast conservation versus mastectomy will be presented taking into account oncological outcomes, genetic risk factors and patient preferences. Decision-making around adjuvant radiotherapy will be discussed including how novel systemic therapies may modify the radiotherapy landscape. Importantly this symposium will include the patient voice to better understand what is most important to young BRCA carriers in terms of treatment goals and unmet needs.
Symposium
Clinical
Breast
Sunday
May 04
15:15 - 16:30
Strauss 1-2
Joint ESGO-ESTRO-ESP: Endometrial cancer guidelines update
Nicole Concin, Austria;
Remi Nout, The Netherlands;
Sigurd Lax, Austria
Over the last 5 years there have been many practice changing developments in the management of endometrial carcinoma. The role of molecular markers, their impact on risk estimation and treatment decisions has evolved. Therefore, the FIGO staging system has been revised in 2023 to include molecular markers. In 2025, the ESGO-ESTRO-ESP guidelines on the management of endometrial carcinoma have been updated according to the latest evidence.
Symposium
Clinical
Gynaecology
Sunday
May 04
15:15 - 16:30
Schubert
New horizons with AI technologies for MRI-guided radiotherapy
Moritz Rabe, Germany;
Wouter van Elmpt, The Netherlands
This symposium will focus on AI and machine learning applications for MRI-guided radiotherapy. Anaïs Barateau will introduce the integration of AI in MRI-guided Radiotherapy (MRIgRT), discussing algorithm basics, some examples and future challenges. Luise Anna Künzel will provide a comprehensive overview of the MRIgRT workflow, emphasizing the current role of AI in various stages including the possibilities for full automation of the workflow. Guillaume Landry will explore motion management in radiotherapy workflows, highlighting the TrackRAD2025 Challenge for real-time lesion tracking. Finally, Davide Cusumano will present findings from the MESCAL project, evaluating synthetic CT algorithms for MRI-only Radiotherapy. Join us for an in-depth exploration of these cutting-edge topics.
Symposium
Physics
AI in RT / GI / Positioning & Immobilisation / Urology
Sunday
May 04
15:15 - 16:30
Lehar 1-3
This house believes that properly commissioned delivery techniques render routine measurement PSQA obsolete
Coen Hurkmans, The Netherlands;
Eduard Gershkevitsh, Estonia
In this debate 4 renowned clinical physicists will debate whether or not we still need a routine patient/plan specific quality assurance (PSQA) measurements. With the introduction of complex radiotherapy techniques like IMRT, VMAT and stereotactic radiotherapy in the beginning of this century and uncertainties associated with small field dosimetry, MLC modelling in TPS, etc. have increased the demand for PSQA. The provision of commercial PSQA tools lead to intensification of PSQA. PSQA has certainly increased our quality and safety of complex radiotherapy techniques. Over the years, radiotherapy delivery machines have become more stable. Also, treatment planning dose calculations have become more accurate. Moreover, data transfer is exceedingly automated, reducing the chance on human errors. As such, it seems the treatment delivery process might be “in control”. This would mean that, if the treatment techniques are properly commissioned, measurement based PSQA would become less important. Is this true? Come to this debate and let your opinion count! Arguments for and against continued measurement based PSQA will be shared and you can vote who has won the debate.
Debate
Physics
Dosimetry & QA
Sunday
May 04
15:15 - 16:30
Haydn
This house believes that the need for robust positioning and immobilisation in radiotherapy practice is over!
Maeve Kearney, Ireland;
Rita Simoes, United Kingdom
Positioning and immobilisation are fundamental steps in the RT patient pathway, uniquely vital for ensuring treatment reproducibility and precision. RTT experts will argue for and against the proposition considering traditional immobilisation strategies in light of advancements such as Surface-Guided Radiotherapy (SGRT), particle therapy, and online ART. Proponents argue that modern technologies and techniques reduce reliance on rigid immobilisation, enhancing patient comfort and experience. Opponents caution against abandoning these proven methods, emphasizing the risks of excess external and internal motion and misalignment without robust positioning systems. Join this engaging session as we discuss the evolving role of immobilisation in RT and its implications for patient care and daily practice.
Debate
RTT
Positioning & Immobilisation / Soft Tissue
Sunday
May 04
15:15 - 16:30
Strauss 3
Brachytherapy for cancer re-irradiation: The best tool in the shed?
Mateusz Bilski, Poland;
Primoz Petric, Switzerland
Symposium
Brachytherapy
Head & Neck / Gynaecology / Reirradiation / Urology
Sunday
May 04
15:15 - 16:15
Stolz 1
Genito-urinary 2
Gokhan Ozyigit, Turkey;
Miloš Grujić, Serbia
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Clinical
Sunday
May 04
15:15 - 16:15
Business 1-2
Improvements in imaging
Thiele Kroes-Kobus, The Netherlands;
Vicki Taasti, Denmark
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Physics
CNS
Sunday
May 04
15:15 - 16:15
Stolz 2
Lower GI 3
Corrie Marijnen, The Netherlands;
David Sebag-Montefore, United Kingdom
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Clinical
GI
Sunday
May 04
15:15 - 16:15
Business 3-4
Non-conventional beams
Alejandro Mazal, Spain;
Christopher Pagett, United Kingdom
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Physics
FLASH
Sunday
May 04
17:00 - 18:00
Mahler
Transformative palliation using high-tech radiotherapy
Jana Jaal, Estonia;
Sebastian M. Christ, Switzerland
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Interdisciplinary
Sunday
May 04
17:00 - 18:00
Brahms
Transformative radiotherapy by modulation of immune system and microenvironment
Artur Chyrek, Poland;
Heidi Lyng, Norway
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Radiobiology
FLASH / Urology
Sunday
May 04
17:00 - 18:00
Plenary Hall
Late-Breaking Papers 2
Anna Kirby, United Kingdom;
Gert De Meerleer, Belgium
Late-Breaking Papers are presented in one of the sessions scheduled in the main session halls. Each presentation will be followed by a discussant. Sessions will be recorded and available on-demand.
Proffered Papers
Clinical
Sunday
May 04
17:00 - 18:00
Strauss 1-2
Sarcoma / Haematology / Paediatrics
Dora Correia, Switzerland;
Umberto Ricardi, Italy
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Clinical
Soft Tissue
Sunday
May 04
17:00 - 18:00
Schubert
MRLinac-based online adaptive radiotherapy
Julia Bauer, Germany;
Tim Everaert, Belgium
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Physics
Sunday
May 04
17:00 - 18:00
Lehar 1-3
Target volume in focus
Christian POPOTTE, France;
Tomas Janssen, The Netherlands
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Physics
Sunday
May 04
17:00 - 18:00
Haydn
From bottleneck to breakthrough: Optimising radiotherapy workflows
Margaret Tynan , Ireland;
Winnie Li, Canada
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
RTT
Sunday
May 04
17:00 - 18:00
Strauss 3
Physics brachytherapy
Marisol De Brabandere, Belgium;
Victor Gonzalez-Perez, Spain
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Brachytherapy
Sunday
May 04
17:00 - 18:00
Stolz 1
Gynaecological 2
Alex Stewart, United Kingdom;
Anne-Sophie van den Heerik, The Netherlands
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Clinical
Gynaecology
Sunday
May 04
17:00 - 18:00
Business 1-2
Next-generation radiotherapy: Advancing technology and precision in radiotherapy practice
Filipe Moura, Portugal;
Melissa Burns, Australia
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
RTT
Dosimetry & QA / Positioning & Immobilisation
Sunday
May 04
17:00 - 18:00
Stolz 2
Breast 3
Alizée CAMPS-MALEA, France;
Maria Carmen De Santis, Italy
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Clinical
Breast
Sunday
May 04
17:00 - 18:00
Business 3-4
Upper GI 3
Agnieszka Namysł-Kaletka, Poland;
Marcel Verheij, The Netherlands
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Clinical
GI
Monday
May 05
08:00 - 08:40
Mahler
Radiation radiobiology unleashed: Cross-disciplinary modelling breakthroughs
Kerstin Borgmann, Germany
Teaching Lecture
Interdisciplinary
Monday
May 05
08:00 - 08:40
Brahms
Direct-to-treatment: The future of simulation-free radiotherapy
Marco Fusella, Italy;
Tomasz Latusek, Poland
This session explores how modern technology is enabling faster, simulation-free radiotherapy while maintaining safety, precision, and clinical value. It will open with an overview of the direct-to-treatment paradigm, illustrating how same-day radiotherapy without prior CT simulation is becoming feasible, supported by clinical examples and data. The following talks will highlight both clinical and physics considerations, including workflow adaptation, patient selection, implementation strategies, and dosimetric implications. The session aims to provide a comprehensive view of this emerging approach, stimulate discussion on challenges and opportunities, and reflect on how it may shape the future of routine radiotherapy practice.
Pitch Session
Interdisciplinary
Breast / CNS
Monday
May 05
08:00 - 08:40
Plenary Hall
Biochemical recurrence after prostate cancer primary local treatment: State-of-the-art and unmet clinical needs
Thomas Zilli, Switzerland
Biochemical recurrence (BCR) after primary local treatment for prostate cancer remains a clinical challenge. Recent evidence suggests that high-risk non-metastatic BCR, defined by a rapid PSA doubling time, warrants systemic treatment intensification with androgen receptor pathway inhibitors, which significantly delay metastasis, disease progression, and potentially improve survival. Next-generation imaging, particularly PSMA-PET, enables earlier detection of oligometastatic disease, refining treatment strategies. This has led to growing interest in metastasis-directed therapy (MDT), such as SBRT, as a means to improve clinical outcome in this disease setting. Emerging data indicate that MDT, either alone or in combination with systemic treatment, can improve progression-free survival and delay systemic progression. However, key questions remain regarding optimal patient selection, treatment sequencing, and long-term outcomes. This session will provide a state-of-the-art overview of management of high-risk BCR after prostate cancer primary local treatment, addressing current evidence and unmet clinical needs to refine personalized treatment strategies.
Teaching Lecture
Clinical
Urology
Monday
May 05
08:00 - 08:40
Strauss 1-2
Controversial role of radiotherapy for small-cell lung cancer in the evolving IO landscape
Ditte Sloth Møller, Denmark
Teaching Lecture
Clinical
Lung
Monday
May 05
08:00 - 08:40
Schubert
Implementation of the ESTRO "AI" guideline
Jan Unkelbach, Switzerland;
Mirjam Mast, The Netherlands
Artificial Intelligence is revolutionizing radiation therapy, but how can we ensure a safe, effective, and clinically validated implementation? In this must-attend session Barbara Jereczek introduces the ESTRO-AAPM AI guideline, a roadmap for developing, validating, and reporting AI models in clinical practice. Wouter van Elmpt will showcase applications in different domains. Discussed will be automation tasks such as AI-driven segmentation that are being introduced clinically. In addition, AI applications in the field clinical decision support systems and outcome prediction will be discussed, while debating whether clinics are ready to embrace these innovations. Interactive panel discussions will tackle key challenges, regulatory hurdles, and future perspectives. If you’re looking to integrate AI into your practice with confidence, this session is essential.
Meet-the-Experts
Physics
AI in RT / Dosimetry & QA
Monday
May 05
08:00 - 08:40
Lehar 1-3
New developments in image guidance
Kathrine Røe Redalen, Norway
The teaching lecture will provide an overview of the main techniques used for image guidance in radiotherapy and the recent developments in this field. The lecture will focus on the most central in-room imaging modalities, including x-ray, MRI and surface guided radiotherapy (SGRT). For each of these the lecture will cover their use in patient setup, motion management and potential for adaptive radiotherapy. The presentation will mainly be relevant for photon therapy, but will give some examples on differences and similarities of the use of these techniques also in proton therapy. Perspective on emerging image guidance methods will be briefly discussed.
Teaching Lecture
Physics
GI / Positioning & Immobilisation / SBRT / Soft Tissue
Monday
May 05
08:00 - 08:40
Haydn
Implementing deep learning segmentation for OARs
Elizabeth Forde, Ireland
In this session we welcome our two multidisciplinary speakers from The Catharina Cancer Institute in Eindhoven, The Netherlands. During this session we will have the opportunity to learn first-hand how deep learning segmentation (DLS) has been implemented in their clinic, and how this process has changed their practice. Firstly, Clinical Physicist, Coen Hurkmans, will consider the motivation to implement DLS practices in a clinical environment. Drawing on evidence from the literature, he will highlight achievable results, common pitfalls, and strategies to mitigate errors in segmentation. He will also provide us with a comprehensive guide to evaluating the quality of segmentations within clinical workflows. Coen will also address the how to establish a multidisciplinary team to support the implementation phase of DLS. His talk will then be followed up by RTT colleague, Melissa Verdonk-van den Heuvel. Melissa will talk us through the practicalities of introducing DLS, using examples from various imaging technologies, including CBCT and MRI. She will also highlight the outcomes of testing protocols, and the ongoing quality assurance measures in place critical to the success of DLS. Finally, Melissa will discuss the evolving roles of radiation therapists (RTTs) in this changing landscape and explore potential future opportunities for advanced practice.
Teaching Lecture
RTT
AI in RT
Monday
May 05
08:00 - 08:40
Strauss 3
How to (critically) read a paper?
Bartłomiej Tomasik, Poland;
Marta Giżyńska, Denmark
Reading literature related to radiation oncology is crucial for researchers and clinicians, yet peer review alone doesn’t guarantee quality. This session will equip young professionals with essential skills to critically evaluate such studies. Participants will learn practical techniques to assess methodologies, analyze findings, and determine the relevance of research to clinical or professional practice. By exploring examples like clinical trials and studies using artificial intelligence and machine learning, attendees will learn to read with both clinical and reviewer perspectives, avoid common pitfalls, and contribute actively to scientific dialogue, fostering informed engagement with evolving research methodologies.
Teaching Lecture
Young
Monday
May 05
08:45 - 10:00
Mahler
Joint ESTRO-RANZCR: Single fraction SBRT: Redefining surgery in radiotherapy
Patrik Sibolt, Denmark;
Tuan Ha, Australia
Pitch Session
Interdisciplinary
SBRT
Monday
May 05
08:45 - 10:00
Brahms
The new frontier-risk management in an increasingly automated online radiotherapy world
Mischa Hoogeman, The Netherlands;
Łukasz Kuncman, Poland
As automation reshapes radiotherapy, managing risks becomes increasingly complex. This session examines key challenges, from implementing online adaptive radiotherapy (oART) to ensuring regulatory compliance and cybersecurity. Experts will discuss how automation is shifting clinical roles and impacting decision-making. With AI integration and evolving safety regulations, traditional risk management strategies may no longer suffice. Additionally, the session will explore the safety implications of individualized protocols compared to standardized ones. The discussion will also address workforce challenges and the future of patient care in an automated online radiotherapy world, emphasizing the need for specialized expertise to maintain quality and safety.
Symposium
Interdisciplinary
Dosimetry & QA / GI
Monday
May 05
08:45 - 10:00
Plenary Hall
Joint ESTRO-APCCC: This house believes local treatment intensification is a reasonable option to avoid systemic overtreatment in high-risk prostate cancer patients
Piet Ost, Belgium;
Vedang Murthy, India
Debate
Clinical
Urology
Monday
May 05
08:45 - 10:00
Strauss 1-2
Joint ESTRO-IASLC: Radiotherapy in EGFR-driven or ALK-driven NSCLC: Essential or redundant?
Ben Slotman, The Netherlands;
Paul Martin Putora, Switzerland
Symposium
Clinical
Lung
Monday
May 05
08:45 - 10:00
Schubert
AI in radiotherapy: How can we be more certain about uncertainty?
Cornelis van den Berg, The Netherlands;
Eliana Maria Vasquez Osorio, United Kingdom
Symposium
Physics
AI in RT
Monday
May 05
08:45 - 10:00
Lehar 1-3
Joint ESTRO-EFOMP: The rise of photon-counting CT: Challenges and opportunities
Cristina Garibaldi, Italy;
Efi Koutsouveli, Greece
This symposium will delve into the transformative potential of photon-counting computed tomography (CT) technology. As an innovative imaging technique, photon-counting CT promises to enhance image quality, reduce radiation dose, and provide new diagnostic capabilities. The symposium will explore the technical development and challenges, highlighting the opportunities associated with implementing spectral photon-counting CT in radiotherapy.
Symposium
Physics
Monday
May 05
08:45 - 10:00
Haydn
Join my project! A pitch session for radiation therapist-led research
Aileen Duffton, United Kingdom;
Lynsey Devlin, United Kingdom
This session will feature five expert speakers, pitching research initiatives across the field of RT. Topics include cutting-edge research developments in radiomics and the potential to personalise treatment strategies, to the evolving professional competencies required for surface guided radiation therapy (SGRT). Online adaptive RT will be discussed, examining optimal patient pathways, its integration, and the crucial role of RTTs in navigating these advanced techniques. The session will highlight the potential of simulation training, emphasising the benefits of enhancing clinical skills, patient safety, and professional preparedness. A dedicated presentation on global radiotherapy essential standards will provide international context, offering insights into standardising practice across different healthcare communities. By bringing together research, education, innovative technology, and global perspectives alongside the patient perspective, this session aims to provide radiation therapists with an understanding of the evolving landscape of RT practice.
Pitch Session
RTT
Monday
May 05
08:45 - 10:00
Strauss 3
From self-doubt to self-confidence: Confronting imposter syndrome
Dylan Callens, Belgium;
Marcel van Herk, United Kingdom
This session explores imposter syndrome, a phenomenon affecting many and impacting both confidence and professional growth, particularly among researchers. Through four engaging talks, we will delve into its definition, prevalence across professions and age groups, and its underlying causes. Speakers will share personal experiences, offering perspectives from early-career researchers, senior academics, and professionals transitioning to industry. Topics include overcoming self-doubt, the influence of cultural and professional environments, and how imposter syndrome can shape growth and collaboration. Join us for insights, real-life examples, and practical advice on addressing imposter syndrome and turning it into a tool for personal and professional development.
Symposium
Young
Monday
May 05
09:00 - 10:00
Stolz 1
Head & neck 3
Mariangela Massaccesi, Italy;
Panagiotis Balermpas, Switzerland
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Clinical
Head & Neck
Monday
May 05
09:00 - 10:00
Business 1-2
Strategies to overcome radioresistance
Francesco Marampon, Italy;
Geoff Higgins, United Kingdom
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Radiobiology
Breast
Monday
May 05
09:00 - 10:00
Stolz 2
CNS 2
Elena-Cristina Gheara, Romania;
Maximilian Niyazi, Germany
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Clinical
CNS
Monday
May 05
09:00 - 10:00
Business 3-4
Breaking boundaries in radiotherapy: Innovative techniques and sustainability
Celeste Oliveira, Portugal;
Liselotte ten Asbroek, The Netherlands
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
RTT
Positioning & Immobilisation
Monday
May 05
10:30 - 11:40
Mahler
Transforming cancer care by QoL preserving radiotherapy
Helen McNair, United Kingdom;
Paul Sargos, France
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Interdisciplinary
Monday
May 05
10:30 - 11:30
Brahms
First-in-human transformative radiotherapy
Ananya Choudhury, United Kingdom;
Dietmar Georg, Austria
Proffered Papers
Interdisciplinary
Positioning & Immobilisation
Monday
May 05
10:30 - 11:33
Plenary Hall
Top clinical trials
Anna Kirby, United Kingdom;
Icro Meattini, Italy
Proffered Papers
Clinical
GI / Urology
Monday
May 05
10:30 - 11:30
Strauss 1-2
Lung 1
Lotfi Kochbati, Tunisia;
Ursula Nestle, Germany
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Clinical
Lung
Monday
May 05
10:30 - 11:30
Schubert
QA the AI
Sarah Osman, United Kingdom;
Victor Hernandez, Spain
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Physics
AI in RT / Dosimetry & QA
Monday
May 05
10:30 - 11:30
Lehar 1-3
Imaging and image registration
Alan McWilliam, United Kingdom;
Pietro Mancosu, Italy
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Physics
Monday
May 05
10:30 - 11:30
Haydn
The AI and automation era: Smarter, faster, better
Theresa O'Donovan, Ireland;
Vincent Leung, China, Hong Kong Special Administrative Region
Proffered Papers
RTT
AI in RT
Monday
May 05
10:30 - 11:30
Strauss 3
The Next Generation! Engage!
Ghizela Ana Maria Salagean, Romania;
Victoria Vera Barragán, Spain
This session highlights the critical need to support the next generation of professionals in oncology and radiotherapy. It will introduce Young ESTRO’s vision for empowering young members through leadership training, mentorship, and inclusive initiatives, with an emphasis on fostering collaboration and resilience in the evolving field of oncology. Additionally, the session will explore the current research landscape, address the challenges young researchers face, and provide practical advice on balancing research, clinical work, and personal well-being. Lastly, it will feature key educational and professional development opportunities, including ESTRO, EFOMP, and EORTC programs, fellowships, and workshops aimed at advancing research literacy and clinical excellence.
Symposium
Young
Monday
May 05
10:30 - 11:30
Stolz 1
Next-generation radiotherapy: Reirradiation & FLASH
Jonas Willmann, Switzerland;
Stefanie Corradini, Germany
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Interdisciplinary
FLASH / Reirradiation / Skin
Monday
May 05
10:30 - 11:30
Business 1-2
CNS 1
Hela Hammami, Tunisia;
Luca Visani, Italy
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Clinical
CNS
Monday
May 05
10:30 - 11:30
Stolz 2
Head & neck 4
Hans Langendijk, The Netherlands;
Marlen Haderlein, Germany
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Clinical
Head & Neck
Monday
May 05
10:30 - 11:30
Business 3-4
Brachytherapy 2
Peter Hoskin, United Kingdom;
Victor Gonzalez-Perez, Spain
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Brachytherapy
Breast / Gynaecology
Monday
May 05
11:40 - 12:45
Plenary Hall
Best Papers & Donal Hollywood Award
Matthias Guckenberger, Switzerland
The latest clinical trials will be presented during this plenary session. Join us to learn of the latest results and developments in clinical trials.
Proffered Papers
Interdisciplinary
Breast / Dosimetry & QA / SBRT
Monday
May 05
11:40 - 12:40
Haydn
Local and total skin radiotherapy in cutaneous lymphomas: As low as reasonably achievable radiation doses
Youlia Kirova, France
Multidisciplinary Tumour Board
Clinical
Skin
Monday
May 05
13:10 - 14:10
Strauss 3
Per aspera ad astra!
James Barber, United Kingdom;
Nienke Hoekstra, The Netherlands
Through hardships to the stars! The path to a successful career is often filled with challenges. This session is designed to support young professionals in navigating some of these hurdles. After completing training, many professionals find themselves stepping into supervisory roles. How can we foster the optimal growth of our younger colleagues? The second presentation focusses on ways to deliver feedback to peers. It can be quite a challenge to critically discuss differences in opinion with more senior colleagues. We’ll also explore tips and tricks to maintain self-confidence while taking on new roles, responsibilities, and tasks as you climb the career ladder. This session is relevant and engaging for professionals from a wide range of disciplines.
Symposium
Young
Monday
May 05
13:00 - 14:00
Stolz 2
RTT Meet & Greet
Assembly
RTT
Monday
May 05
14:15 - 14:40
Plenary Hall
Breur Award
Award Lecture
Interdisciplinary
Dosimetry & QA / Lung / Urology
Monday
May 05
14:40 - 15:05
Plenary Hall
Interdisciplinary Award
Award Lecture
Interdisciplinary
Dosimetry & QA / Urology
Monday
May 05
15:15 - 16:30
Mahler
This house believes that CBCT-based fast adaptation workflows will supersede broad MR-Linac usage
Amanda Webster, United Kingdom;
Christian Richter, Germany
In the last years, MR-Linac research, translation and clinical application was the dominating innovation in RT. With the recent introduction of new CBCT-guided linac hardware in combination with streamlined adaptive workflow, the dominance of MR-Linacs in the online-adaptive context might change. Will MR-Linacs completely vanish? Or will they become a niche application like Cyberknife or others? Or will the superiority of the MR-guidance lead to breakthrough-applications? What are the advantages and disadvantages of CBCT-guided online adaptions? What do you think – will CBCT-based fast adaptation workflows will supersede broad MR-Linac usage? Will our four debaters change your opinion? What will be the majority vote?
Debate
Interdisciplinary
GI / Positioning & Immobilisation / SBRT / Urology
Monday
May 05
15:15 - 16:30
Brahms
Addressing the global radiotherapy workforce grand challenge
Ajay Aggarwal, United Kingdom;
Miet Vandemaele, Belgium
This section will focus on how innovations can seek to improve productivity, quality and efficiency of radiotherapy care delivery in Europe and more globally. Examples will include the rapid evolution in hypofractionation with strong level 1 evidence for its clinical benefit but in addition substantial benefits for patients and for departments looking to manage increasing patient demand and care backlogs. There will be a focus on the role of AI to manage workforce deficits with a clear message around the importance of evaluation before adoption across high-and lower income settings, with lessons learned from the ongoing international ARCHERY study. This will be followed by a broader discussion on the challenges of introducing innovation, the risk of non-adoption and abandonment of novel technology in healthcare, and the importance of building capacity in implementation research and transformation change management amongst the radiotherapy community to increase chances of adoption.
Symposium
Interdisciplinary
Monday
May 05
15:15 - 16:30
Plenary Hall
This house believes that shifting away from elective nodal irradiation in head and neck cancer is the promised land
Jon Cacicedo, Spain;
Pierluigi Bonomo, Italy
In many curative fields of radiation oncology, the need of large fields of irradiation comprising elective nodal volumes has been scrutinized over the last years. In head and neck cancer, the inherent lymphophylic behavior of head and neck squamous cell carcinoma has traditionally mandated the practice of neck management, in parallel to standard practice in head and neck surgery. Based on recent trends of research, spanning from new approaches in nodal staging to the integration of AI-based models, the concept of ENI has been questioned. Is it time for a major shift from standard practice in head and neck radiotherapy?
Debate
Clinical
Head & Neck
Monday
May 05
15:15 - 16:30
Strauss 1-2
Joint ESTRO-ESR: Artificial intelligence integration for prognostication and treatment planning in cancer
Lucia Manganaro, Italy;
Susan Lalondrelle, United Kingdom
This session will provide an overview of new applications and explore the future of AI in clinical practice from the perspective of both radiation oncologists and radiologists. The introduction of AI is revolutionising radiotherapy workflows by optimising tumour and organ segmentation, saving valuable time for radiation oncologists. In addition, AI has great potential in areas such as quality control, treatment plan verification, optimisation of image-guided radiotherapy and real-time monitoring of moving tumours, such as lung and liver tumours, during treatment. In diagnostic imaging, AI applications are emerging in screening programmes, prognostic assessment and predictive modelling. These areas are becoming more prominent in research, with early impacts already visible in clinical practice. The integration of AI-based models will be a key challenge in the coming years. The presentations will focus on the feasibility, testing and planning of innovative AI solutions in both radiotherapy and diagnostic imaging, emphasising the growing influence of AI on the workflows of oncologists and radiologists.
Symposium
Clinical
AI in RT / Breast / Gynaecology
Monday
May 05
15:15 - 16:30
Schubert
Future of proton therapy: Which innovation will have the biggest impact?
Marco Schwarz, USA;
Michelle Oud, The Netherlands
This session explores five innovations that could shape the future of proton therapy: Proton Arc therapy, Upright proton therapy, Online-adaptive proton therapy, Real-time MR-integrated proton therapy, and Proton FLASH. Experts on these developments will present their views on the potential of the innovations to improve the efficiency, precision, and clinical impact of proton therapy. Furthermore, the speakers will also address current limitations and challenges. Following a panel discussion, the audience will vote on which innovation makes the most compelling case for impacting the future of proton therapy.
Pitch Session
Physics
Dosimetry & QA / FLASH
Monday
May 05
15:15 - 16:30
Lehar 1-3
This house believes that dose accumulation will never provide a clinical benefit
Dave Fuller, USA;
Lena Nenoff, Germany
In fractionated radiotherapy, the dose delivered each day varies between treatment sessions. In current clinical practice each fraction is evaluated separately to allow for the evaluation of dosimetric changes of even the necessary adaptations to the treatment plan. Dose accumulation enables tracking of the total dose throughout the treatment. However, due to large and poorly quantified uncertainties, interpreting accumulated doses remains challenging and is currently limited in clinical practice. This debate will explore whether dose accumulation could provide a clinical benefit in future radiotherapy.
Debate
Physics
Monday
May 05
15:15 - 16:30
Haydn
The lost tribe: Meeting the needs of adolescent and young adult radiotherapy patients
Maria Chiara Lo Greco, Italy;
Sophie Boisbouvier, France
During this session, speakers will address the needs of adolescent and young adult (AYA) radiotherapy patients, with a focus on quality-of-life aspects, during and up to six months post-treatment. Topics also include the value of informative sessions within the radiotherapy pathway and strategies for implementation. The Irish experience with Hodgkin lymphoma AYA survivors will highlight tailored physical and psychosocial support and the integration of survivor input into resource development. Finally, the Peer2Me intervention will be presented, showcasing its impact on both mentors and mentees.
Symposium
RTT
Soft Tissue
Monday
May 05
15:15 - 16:30
Strauss 3
Speed Dating
Young Networking Session
Young
Monday
May 05
15:15 - 16:15
Stolz 1
Lung 2
Fiona McDonald, United Kingdom;
Justyna Kociolek, Portugal
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Clinical
Lung
Monday
May 05
15:15 - 16:15
Business 1-2
Brachytherapy 1
Laura Motisi, Switzerland;
Taran Paulsen Hellebust, Norway
Mini-Orals are presented at one of the sessions scheduled in the two mini-oral theatres. Each author will present a 4-slide PowerPoint orally for 4 minutes, followed by 3 minutes for discussion. Sessions will be recorded and made available via the online platform and mobile app.
Mini-Orals
Brachytherapy
Gynaecology / Urology
Monday
May 05
15:15 - 16:15
Stolz 2
Urology / Head & Neck
Sandra Nuyts, Belgium;
Simon KB Spohn, Germany
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Clinical
Monday
May 05
15:15 - 16:15
Business 3-4
Radiobiology
Cathrine Bang Overgaard, Denmark;
Ludwig Dubois, The Netherlands
Poster Discussions are presented in one of the sessions scheduled at the two poster discussion theatres. Each author will present a digital poster orally for 2 minutes, followed by 2 minutes for discussion. Sessions will be recorded and made available via the online platfrom and mobile app.
Poster Discussions
Radiobiology
FLASH
Monday
May 05
17:00 - 18:00
Mahler
Lower GI 1
Iwona Dębosz-Suwińska, Poland;
Tiberiu Popescu, Romania
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Clinical
GI
Monday
May 05
17:00 - 18:00
Brahms
Transformative radiotherapy by biomarker-driven treatment adaptation
Jan Bussink, The Netherlands;
Monica Mangoni, Italy
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Interdisciplinary
Urology
Monday
May 05
17:00 - 18:00
Plenary Hall
Late-Breaking Papers 3
Giulia Marvaso, Italy;
Uulke van der Heide, The Netherlands
Late-Breaking Papers are presented in one of the sessions scheduled in the main session halls. Each presentation will be followed by a discussant. Sessions will be recorded and available on-demand.
Proffered Papers
Clinical
Monday
May 05
17:00 - 18:00
Strauss 1-2
Genito-urinary 1
Alessandra Castelluccia, Italy;
Ghaiet El Fida Noubbigh, Tunisia
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Clinical
Monday
May 05
17:00 - 18:00
Schubert
Non-conventional beam modalities
Mohammad Hussein, United Kingdom;
Serena Psoroulas, Switzerland
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Physics
FLASH
Monday
May 05
17:00 - 18:00
Lehar 1-3
New approaches in treatment planning
Thomas Bortfeld, USA;
Wouter Crijns, Belgium
Proffered Papers are presented in one of the sessions scheduled in the main session halls. Each author will present orally for 7 minutes, followed by 3 minutes for discussion. Sessions will be recorded and available on-demand.
Proffered Papers
Physics
Monday
May 05
17:00 - 18:00
Haydn
Pioneering dosimetry and treatment optimisation
Ingrid Kristensen, Sweden;
Miriam Kerr, Ireland
Proffered Papers
RTT
Dosimetry & QA
Monday
May 05
17:00 - 18:00
Strauss 3
Quiz and Young Researcher Award
Morten Horsholt Kristensen, Denmark
Young Networking Session
Young
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