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. Author manuscript; available in PMC: 2022 Mar 15.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2020 Oct 24;109(4):1054–1075. doi: 10.1016/j.ijrobp.2020.10.021

Figure 3.

Figure 3.

Stage III cT3N2cM0 nasopharyngeal carcinoma patient who underwent an offline adaptive replan due to volume reductions in the primary tumor and bilateral neck nodes. (a) Initial planning CT scan at the level of the maximum extent of the primary nasopharyngeal cancer; (b) resimulation CT scan at fraction 12 showing a major reduction in the primary tumor volume with the original extent of the primary tumor in red; (c) resultant deformation map at the level of the primary tumor; (d) initial planning CT scan at the level of the neck nodes; (e) resimulation CT scan (fraction 12) at the level of the neck nodes showing the original extent of the neck nodes outside of the external anatomy; (f) resultant deformation map at the level of the neck nodes. Scale shown is the 3D vector displacement in mm.