ESTRO 2025 - Abstract Book

S1841

Clinical – Upper GI

ESTRO 2025

Figure 1: OARs VxGy relative to the fractionation schedule across all 7 cases for BP, APP and AAP. The blue lines represent the clinical limits according to institutional guidelines.

Conclusion: MR-LINAC facilitates real-time treatment plan adaptation, ensuring optimal tumor coverage while maintaining OARs dose constraints. The value of MR-LINAC as compared to CBCT-guided SBRT still needs to be established.

Keywords: SBRT, MR-linac

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