| Figure 1 A dosimetry comparison between (a) a 3-beam conventional 2D treatment, (b) a 6-beam conventional 3D conformal RT treatment, and (c) a 7-beam IMRT treatment. The PTV is represented by the solid red line. The 100% and 70% of the prescription dose are shown by the green and red colour-washed areas. A better dose conformity to the PTV can be achieved in the IMRT treatment. |
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