Table 2.
Summary of analysis of target coverage and conformity index
| Parameter | M-ACT2 | A2-ACT2 | Pb | P-ACT2 | Pc | A1-ACT2 | Pd |
|---|---|---|---|---|---|---|---|
| CTV1a (prescribed dose 70Gy) | |||||||
| D98% (Gy) | 70.21 (0.47) | 70.45 (0.24) | 0.386 | 69.16 (1.16) | 0.028* | 69.80 (0.89) | 0.241 |
| D2% (Gy) | 77.35 (1.85) | 75.68 (0.72) | 0.009* | 76.40 (1.18) | 0.139 | 76.24 (1.28) | 0.114 |
| HI (%) | 9.54 (2.51) | 7.03 (1.06) | 0.007* | 9.86 (1.83) | 0.721 | 8.75 (1.27) | 0.285 |
| CI (%) | 63.92 (5.63) | 72.22 (8.29) | 0.005* | 68.07 (5.48) | 0.028* | 68.34 (6.44) | 0.037* |
| CTV2a (prescribed dose 63Gy) | |||||||
| D98% (Gy) | 62.49 (1.07) | 63.30 (1.03) | 0.022* | 60.38 (2.24) # | 0.017* | 61.49 (1.41) # | 0.093 |
| D2% (Gy) | 76.50 (2.21) | 75.11 (0.97) | 0.028* | 75.64 (1.47) | 0.203 | 75.64 (1.66) | 0.203 |
| HI (%) | 19.51 (2.48) | 16.89 (1.25) | 0.010* | 21.75 (3.85) | 0.169 | 20.24 (2.50) | 0.799 |
| CI (%) | 62.29 (7.54) | 72.42 (3.96) | 0.009* | 66.93 (5.19) | 0.007* | 67.48 (4.33) | 0.022* |
| CTV3a (prescribed dose 57Gy) | |||||||
| D98% (Gy) | 57.11 (1.18) | 57.37 (0.41) | 0.575 | 53.47 (3.34) # | 0.013* | 55.94 (1.02) | 0.007* |
| D2% (Gy) | 65.20 (2.72) | 62.52 (1.54) | 0.005* | 63.85 (2.46) | 0.074 | 63.41 (1.98) | 0.022* |
| HI (%) | 12.89 (4.04) | 8.68 (2.45) | 0.005* | 17.16 (8.35) | 0.110 | 12.36 (4.09) | 0.528 |
| CI (%) | 48.58 (9.28) | 59.27 (8.88) | 0.007* | 53.02 (8.63) | 0.022* | 55.09 (7.35) | 0.019* |
Abbreviations: M-ACT2 = MCT plan re-calculated on ACT2 data; A2-ACT2 = ACT2 plan calculated on ACT2 data; P-ACT2 = PCT plan re-calculated on ACT2 data; A1-ACT2 = ACT1 plan re-calculated on ACT2 data; Dx = dose delivered to x% of volume; HI = homogeneity index; CI = conformity index.
a
Shown as mean (standard deviation)
b
Comparison of A2-ACT2 plan with M-ACT2 plan
c
Comparison of P-ACT2 plan with M-ACT2 plan
d
Comparison of A1-ACT2 plan with M-ACT2 plan
#
Target coverage is not satisfied
*
P < 0.05