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. 2020 Jul 27;21(9):155–162. doi: 10.1002/acm2.12989

Table 2.

Mean and standard deviations of dose parameters in three treatment techniques.

Variables

TD

Mean (SD)

HT

Mean (SD)

VMAT

Mean (SD)

P‐value
CW only
‐PTV CW
V95% 95.3 (0.7) 98.8 (0.6) 95.5 (1.6) <0.01
HI 0.153 (0.015) 0.089 (0.009) 0.142 (0.012) <0.01
CI 0.709 (0.122) 0.808 (0.079) 0.768 (0.119) <0.01
CW + SPC
‐PTV CW
V95% 95.7 (0.8) 97.4 (0.8) 95.6 (0.7) <0.01
HI 0.149 (0.012) 0.101 (0.020) 0.174 (0.024) <0.01
CI 0.657 (0.130) 0.816 (0.089) 0.788 (0.112) <0.01
‐PTV RNI
V95% 98.8 (0.7) 99.8 (0.2) 98.6 (1.4) <0.01
HI 0.085 (0.021) 0.071 (0.011) 0.152 (0.065) <0.01
CW + SPC + AXLN
‐PTV CW
V95% 95.7 (0.4) 97.1 (0.9) 95.3 (0.5) <0.01
HI 0.144 (0.014) 0.112 (0.012) 0.176 (0.023) <0.01
CI 0.683 (0.189) 0.790 (0.101) 0.761 (0.106) <0.01
‐PTV RNI
V95% 98.9 99.7 98.1 <0.01
HI 0.088 (0.019) 0.063 (0.011) 0.112 (0.027) <0.01

Abbreviations: AXLN, axillary nodes; CI, conformity index; CW, chest wall; HI, homogeneity index; HT, TomoHelical; PTV, planning target volume; RNI, regional nodes; SPC, supraclavicular lymph nodes; TD, TomoDirect; VMAT, volumetric modulated arc therapy.