Events at Physics |
Repeat in-room imaging such as Tomotherapy's megavoltage CT imaging can be used to gain an understanding of the impact of patient deformation. However, an assessment of the impact on the cumulative dose distribution requires deformable image registration techniques. To quantify the dosimetric impact of target motion during radiation delivery requires real time motion data and a technique to synchronize the dose calculation with this data.
In this presentation current research efforts at MD Anderson Orlando to assess the dosimetric uncertainties due to motion and deformation will be discussed.