Fig. 1.

(a) CT simulation and (b-c) MR simulation images including T2wMRI and 3dvane (d) Planning contours for GTV (red), PTV50 (yellow), CTV25 (blue), PTV25 (pink), stomach (purple), small bowel (light blue) and large bowel (dark green) (e) Beam arrangement and (f) Dose color wash for 50 Gy (red) and 25 Gy (blue) (g-i) Online treatment plan performed on T2w 3D MRI for fraction 1, 3 and 4 with GTV and OAR contour as well as 33 Gy (cyan) and 50 Gy (red) isodose line displayed. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)