Evaluation of OAR dose sparing and plan robustness of beam-specific PTV in lung cancer IMRT treatment

摘要

The original target position is indicated by the red circle, a target movements for photon irradiation in beam direction (green circle) and perpendicular to beam direction (yellow circle); b the DVH of static target (red line) and targets moving in beam direction (green line) and perpendicular to beam direction (yellow line); c dose profile between the original target (red circle) and the moved target for photon beam perpendicular to beam direction (yellow circle); d percentage depth dose between the original target (red circle) and the moved target for photon beam in the beam direction (green circle)