Improving risk assessment of local failure in brain metastases patients using vision transformers: a multicentric development and validation study
Background and purpose - This study investigates the use of Vision Transformers (ViTs) to predict Freedom from Local Failure (FFLF) in patients with brain metastases using pre-operative MRI scans. The goal is to develop a model that enhances risk stratification and informs personalized treatment str...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
5 July 2025
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| In: |
Radiotherapy and oncology
Year: 2025, Jahrgang: 210, Pages: 1-9 |
| ISSN: | 1879-0887 |
| DOI: | 10.1016/j.radonc.2025.111031 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.radonc.2025.111031 Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S0167814025045359 
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| Verfasserangaben: | Ayhan Can Erdur, Daniel Scholz, Q. Mai Nguyen, Josef A. Buchner, Michael Mayinger, Sebastian M. Christ, Thomas B. Brunner, Andrea Wittig, Claus Zimmer, Bernhard Meyer, Matthias Guckenberger, Nicolaus Andratschke, Rami A. El Shafie, Jürgen Debus, Susanne Rogers, Oliver Riesterer, Katrin Schulze, Horst J. Feldmann, Oliver Blanck, Constantinos Zamboglou, Angelika Bilger-Z., Anca L. Grosu, Robert Wolff, Kerstin A. Eitz, Stephanie E. Combs, Denise Bernhardt, Benedikt Wiestler, Daniel Rueckert, Jan C. Peeken |
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| 245 | 1 | 0 | |a Improving risk assessment of local failure in brain metastases patients using vision transformers |b a multicentric development and validation study |c Ayhan Can Erdur, Daniel Scholz, Q. Mai Nguyen, Josef A. Buchner, Michael Mayinger, Sebastian M. Christ, Thomas B. Brunner, Andrea Wittig, Claus Zimmer, Bernhard Meyer, Matthias Guckenberger, Nicolaus Andratschke, Rami A. El Shafie, Jürgen Debus, Susanne Rogers, Oliver Riesterer, Katrin Schulze, Horst J. Feldmann, Oliver Blanck, Constantinos Zamboglou, Angelika Bilger-Z., Anca L. Grosu, Robert Wolff, Kerstin A. Eitz, Stephanie E. Combs, Denise Bernhardt, Benedikt Wiestler, Daniel Rueckert, Jan C. Peeken |
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| 520 | |a Background and purpose - This study investigates the use of Vision Transformers (ViTs) to predict Freedom from Local Failure (FFLF) in patients with brain metastases using pre-operative MRI scans. The goal is to develop a model that enhances risk stratification and informs personalized treatment strategies. - Materials and methods - Within the AURORA retrospective trial, patients (n = 352) who received surgical resection followed by post-operative stereotactic radiotherapy (SRT) were collected from seven hospitals. We trained our ViT for the direct image-to-risk task on T1-CE and FLAIR sequences and combined clinical features along the way. We employed segmentation-guided image modifications, model adaptations, and specialized patient sampling strategies during training. The model was evaluated with five-fold cross-validation and ensemble learning across all validation runs. An external, international test cohort (n = 99) within the dataset was used to assess the generalization capabilities of the model, and saliency maps were generated for explainability analysis. - Results - We achieved a competent C-Index score of 0.7982 on the test cohort, surpassing all clinical, CNN-based, and hybrid baselines. Kaplan-Meier analysis showed significant FFLF risk stratification. Saliency maps focusing on the BM core confirmed that model explanations aligned with expert observations. - Conclusion - Our ViT-based model offers a potential for personalized treatment strategies and follow-up regimens in patients with brain metastases. It provides an alternative to radiomics as a robust, automated tool for clinical workflows, capable of improving patient outcomes through effective risk assessment and stratification. | ||
| 650 | 4 | |a Artificial Intelligence | |
| 650 | 4 | |a Brain metastases | |
| 650 | 4 | |a Stereotactic radiotherapy | |
| 650 | 4 | |a Vision Transformers | |
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