PMC

A: Overall Survival. B: Progression-free Survival.

Proton plan for patient with intrahepatic cholangiocarcinoma.

Photon vs. proton treatment plan for a dome lesion. The proton plan (left) shows the 25 Gy at the superior aspect of the field ranging out towards the heart due to the large amount of lung in the field.

Ungated vs. gated proton treatment. On the left, the isodose distribution at the 0%, 30%, and 50% respiratory phases are shown. The field is noticeably larger and the dose distribution above the diaphragm varies with phase. In contrast, in the gated image, the isodose distributions do not perceptibly change through the gating window.