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. 2011 Jul 25;38(8):4623–4633. doi: 10.1118/1.3604152

Figure 2.

Figure 2

Change in the volume irradiated to 2 Gy in (a) full-field, ΔV2F, (b) and boost fractions, ΔV2B, and dose to 97% of volume in (c) full-field, ΔD97F and (d) boost, ΔD97B of PTV2 for patients 1–5. The results for ΔV2 and ΔD97 are shown in percentage and centigray, respectively. The error bar shows the normalized standard deviation. The results are shown for three delivery schemes—one beam of 2 Gy per fraction starting from the right (R) and left (L) side of the patient, as well as both lateral beams each delivering 1 Gy (B). If the full-field beam started from one side of the patient, the boost beam should start from the opposite side. Note that, as indicated by the red arrows in (d), the ΔD97B results were out of the frame for patient 2. For schemes R, L, and B, his ΔD97B was −20.3 ± 12.3 cGy, −19.5 ± 11.3 cGy and −19.0 ± 10.9 cGy, respectively.