Fig. 3

Intrafraction motion (mm) of the pancreatic tail (Pancreas) and spleen for ten patients having six intrafraction movements. Motion is shown in three directions (left-right (LR), anterior-posterior (AP) and cranial-caudal (CC)). The dose difference (Gy) between the contours delineated on the pCT and the different MRI-scans are shown on the right