Figure 1From: Single arc volumetric-modulated arc therapy is sufficient for nasopharyngeal carcinoma: a dosimetric comparison with dual arc VMAT and dynamic MLC and step-and-shoot intensity-modulated radiotherapyThe dose distributions for one NPC patient planned for VMAT1 (top), VMAT2 (second), dIMRT (third) and ssIMRT (bottom). Color-wash areas: 70 Gy = red; 60 Gy = orange; 51 Gy = cyan; 40 Gy = blue; Red line is the outline of PTV72.6, wine and olive lines are the outlines of PTV63.6.Back to article page