Skip to main content
. 2020 Dec 17;10:554241. doi: 10.3389/fonc.2020.554241

Table 3.

Dose-volume histogram comparisons for PTV and main OARs in IMRT plans.

OARs IMRT-N IMRT-BM IMRT-LS+OC P*
IMRT-BM VS IMRT-N IMRT-LS+OC VS IMRT-N IMRT-LS+OC VS IMRT-BM
PTV
 Dmean (Gy) 45.95 ± 0.11 45.96 ± 0.07 46.04 ± 0.14 0.253 0.001 0.005
 HI 0.053 ± 0.005 0.053 ± 0.005 0.053 ± 0.005 0.334 1.000 0.334
 CI 0.893 ± 0.022 0.891 ± 0.018 0.883 ± 0.023 0.384 <0.001 0.006
Bone marrow (BM)
 V10 (%) 86.37 ± 2.50 84.22 ± 1.48 80.99 ± 2.10 0.003 <0.001 <0.001
 V20 (%) 72.30 ± 2.34 65.54 ± 2.13 58.26 ± 1.10 <0.001 <0.001 <0.001
 V30 (%) 50.44 ± 3.24 43.96 ± 1.76 35.97 ± 1.32 <0.001 <0.001 <0.001
 V40 (%) 21.04 ± 2.69 18.66 ± 2.04 14.71 ± 1.47 <0.001 <0.001 <0.001
 Dmean (Gy) 27.92 ± 0.86 26.12 ± 0.36 24.29 ± 2.55 <0.001 <0.001 0.025
Small intestine
 V10 (%) 82.84 ± 4.60 83.04 ± 4.57 82.12 ± 4.25 0.276 0.056 0.013
 V20 (%) 60.56 ± 6.29 63.43 ± 6.40 65.05 ± 5.62 <0.001 <0.001 0.027
 V30 (%) 37.29 ± 7.38 37.73 ± 7.13 37.58 ± 7.37 0.164 0.528 0.745
 V40 (%) 17.84 ± 5.52 18.18 ± 5.60 18.29 ± 5.44 0.007 0.026 0.513
 Dmax (Gy) 47.00 ± 0.28 47.06 ± 0.19 47.16 ± 0.31 0.194 0.004 0.130
Rectum
 V10 (%) 97.35 ± 2.96 97.68 ± 2.77 97.66 ± 2.88 0.018 0.019 0.839
 V20 (%) 93.73 ± 3.70 93.94 ± 3.40 93.52 ± 3.30 0.327 0.404 0.072
 V30 (%) 75.97 ± 3.99 76.12 ± 3.21 74.85 ± 3.91 0.877 0.256 0.177
 V40 (%) 34.14 ± 4.99 34.56 ± 5.83 35.96 ± 6.85 0.602 0.125 0.212
 Dmax (Gy) 45.46 ± 0.49 45.40 ± 0.50 45.70 ± 0.52 0.481 0.013 <0.001
Bladder
 V10 (%) 98.64 ± 1.73 98.15 ± 2.08 98.19 ± 1.98 0.261 0.140 0.830
 V20 (%) 82.34 ± 2.58 82.41 ± 3.36 82.41 ± 3.69 0.891 0.904 0.998
 V30 (%) 63.73 ± 3.30 64.55 ± 1.93 64.57 ± 2.01 0.324 0.385 0.965
 V40 (%) 43.37 ± 4.40 43.20 ± 5.71 43.51 ± 5.21 0.618 0.669 0.471
Spinal Cord
 Dmax (Gy) 34.10 ± 3.03 28.40 ± 4.88 17.70 ± 3.74 <0.001 <0.001 <0.001
Femoral head-L
 V10 (%) 76.19 ± 7.57 77.54 ± 8.25 78.96 ± 9.71 0.434 0.211 0.561
 V20 (%) 38.42 ± 6.18 38.10 ± 5.55 37.61 ± 5.73 0.802 0.538 0.528
 V30 (%) 14.41 ± 5.33 13.56 ± 5.23 11.74 ± 4.95 0.152 0.006 0.043
 V40 (%) 0.794 ± 1.306 0.687 ± 1.290 0.687 ± 1.308 0.294 0.676 0.998
Femoral head-R
 V10 (%) 73.84 ± 8.25 75.77 ± 6.80 77.25 ± 8.59 0.356 0.034 0.351
 V20 (%) 33.70 ± 5.84 33.63 ± 6.81 34.06 ± 6.52 0.945 0.790 0.615
 V30 (%) 11.93 ± 5.64 11.05 ± 5.24 10.44 ± 5.59 0.130 0.019 0.236
 V40 (%) 1.043 ± 1.819 0.821 ± 1.645 0.564 ± 1.416 0.401 0.199 0.097

*P value was computed by paired t test.