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Technical Plan Comments

The cohort of 60 patients were used, presented with advanced (sT3cNx cM0) adenocarcinoma of the gastroesophageal junction. The model supports a single target structure. The plans were normalized to 100% as the mean dose to the PTV.

IMPT plans were created using pencil beam spot scanning from ProBeam proton system. All patients were planned with a class solution geometry defined by two posterior oblique fields with gantry angles set to 150° and 220°. Robust optimization was performed for the CTV to account for setup and range uncertainties considering ± 3mm shifts in the isocentre along the x-y-z coordinates and ±3% in beam range.

Users shall use the model with care if significant deviations from this geometry would be introduced.

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Any reference to a "plan study" are simply what the organizers call each case and may not be a "study" in the FDA sense as they may not have been published in a peer reviewed journal.
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