Evaluate dose distribution of IMRT and VMAT technique in radiotherapy for head and neck cancer using truebeam STx linear accelerator

Objectives: To evaluate and compare dose distribution between IMRT and VMAT plan in radiotherapy for head and neck cancer using TrueBeam STx accelerator. Subjects and methods: CT imaging of head and neck cancer’s patients treated with VMAT on the TrueBeam STx accelerator was used to replan using IMRT technique in TPS Eclipse v13.6.