International consensus adopts TRIA to standardize MRI reporting of post-radiotherapy brain changes

New consensus from ESTRO, ESNR, and EORTC defines Treatment-Related Imaging Abnormality (TRIA) for post-radiotherapy MRI changes in intracranial CNS tumors, with clear definitions, imaging subcategories, and required MRI request elements to harmonize reporting and research.

• Clear definitions for potential and confirmed TRIA were established.
• Subcategorization based on imaging features achieved high agreement.
• Minimal essential elements for MRI request forms were identified to ensure consistent application.

Automated summary

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