ESTRO 2024 - Abstract Book

S2237

Clinical - Upper GI

ESTRO 2024

black the adaptations for technical reasons. Closed circles indicate the summed dose scenario incorporating adaptations, while open squares indicate the scenario without adaptation.

Figure 2: Top: D98% for the clinical target volume (CTV) in the original plan vs summed dose over all repeat CTs. In blue, the patients adapted because of mean heart dose (MHD) increase during treatment. In red, the patients adapted because of decrease in target coverage. In black, the adaptations for technical reasons. Closed circles indicate the summed dose scenario incorporating adaptations, while open squares indicate the scenario without adaptation. Bottom: CTV D98% in the adaptation vs no adaptation scenario for patients adapted because of CTV under-dosage

Keywords: IMPT, esophagus, adaptation

References:

[1] Landelijk Platform Protonentherapie (LPPT), Landelijk Platform Radiotherapie Gastroenterologische Tumoren (LPRGE). Addendum Slokdarmcarcinoom bij Landelijk Indicatie Protocol Protonentherapie Longcarcinoom. 2021.