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. 2021 May 7;22(6):71–82. doi: 10.1002/acm2.13254

Table 4.

The final optimization results of Plans 1–3.

VPTV

(cm3)

M (cm) VOptiForR50shell (cm3) %VOpti R50%Goal R50%Achieved CI RTOG HI Dx%
Plan 1 (Spherical)
PTV1 0.54 0.93 12.05 20 5.43 4.75 1.05 1.409 98.9
PTV2 1.96 1.22 31.96 20 4.20 3.48 1.03 1.341 99.1
PTV3 0.19 0.74 5.50 20 6.69 6.24 1.02 1.221 95.2
PTV4 0.97 1.06 18.99 20 4.83 4.22 1.05 1.373 98.8
PTV5 8.00 1.59 88.10 20 3.17 2.80 0.95 1.338 95.0
Total = 11.66
Plan 2 (Irregular)
PTV1 1.20 1.10 23.96 18 4.63 4.46 1.09 1.367 98.1
PTV2 0.98 1.06 21.31 18 4.82 4.55 1.00 1.240 95.4
PTV3 0.73 1.00 17.19 17 5.11 4.70 1.03 1.395 95.0
PTV4 1.01 1.07 20.96 18 4.79 4.61 1.05 1.304 97.9
PTV5 1.67 1.18 31.03 18 4.33 4.10 1.01 1.230 96.5
Total = 5.59
Plan 3 (Jack)
PTV1 1.50 1.16 29.93 17 4.43 4.45 1.11 1.315 98.0
PTV2 1.44 1.15 31.28 16 4.46 4.88 1.19 1.276 98.8
PTV3 1.11 1.09 23.60 17 4.70 4.79 1.09 1.325 95.6
PTV4 1.83 1.20 37.09 16 4.25 4.85 1.09 1.305 96.1
PTV5 1.28 1.12 28.17 16 4.57 5.37 1.14 1.266 95.0
Total = 7.16

The third column labeled “M” is the PTV expansion margin [Eq. (2)] that created the OptiForR50shell used in the optimization. The fourth column labeled “%VOpti” is an optimization parameter given by [Eq. (3)]. Plan 1 (five spherical shaped PTVs) is depicted in Fig. 3(a). Plan 2 (five irregularly shaped PTVs) is depicted in Fig. 3(b). Plan 3 (five jack‐shaped PTVs) is depicted in Fig. 3(c). Notice that the R50%Achieved values are better than the R50%Goal values for all spherical and irregular PTVs.