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. 2017 Jun 13;7:3443. doi: 10.1038/s41598-017-03517-y

Table 2.

Dose coverage for the targets and the planning parameters. (Plan A: C-VMAT, Plan B: HS-VMAT, PlanC: HS-dMLC).

Plan A Plan B Plan C P value
mean mean mean A Vs B B Vs C A Vs C
PTVnx
   D98% (cGy) 6989 6986 6950 0.728 0.95 0.515 0.476
   D95% (cGy) 7053 7045 7054 0.95 0.791 0.776 0.985
   D50% (cGy) 7273 7260 7237 0.196 0.496 0.261 0.076
    D2% (cGy) 7542 7513 7462 0.016 0.289 0.058 0.005
   Dmean (cGy) 7267 7253 7230 0.191 0.487 0.26 0.074
      HI 0.076 0.073 0.071 0.827 0.703 0.822 0.545
      CI* 0.55 0.56 0.63 0.245 0.915 0.163 0.135
PTV
   D98% (cGy) 5837 5812 5914 0.029 0.513 0.011 0.049
   D95% (cGy) 5988 5972 6039 0.089 0.616 0.037 0.103
   D50% (cGy) 6526 6505 6450 0.238 0.641 0.235 0.103
    D2% (cGy) 7399 7380 7333 0.047 0.476 0.08 0.017
   Dmean (cGy) 6574 6556 6529 0.435 0.602 0.446 0.203
      HI 0.239 0.241 0.220 0.016 0.814 0.009 0.016
      CI 0.801 0.802 0.821 0.386 0.995 0.235 0.233
GTVnd
   D98% (cGy) 6994 6994 6914 0.548 0.998 0.345 0.346
   D95% (cGy) 7048 7046 7053 0.966 0.93 0.798 0.867
   D50% (cGy) 7255 7240 7220 0.301 0.501 0.378 0.125
    D2% (cGy) 7522 7501 7420 0.002 0.471 0.007 0.001
  Dmean (cGy) 7250 7238 7214 0.253 0.569 0.282 0.105
    HI 0.073 0.070 0.070 0.785 0.723 0.802 0.665
Planning Parameters
     Segments 181.00 178.00 126.00 0.003 0.782 0.001 0.001
     Mus 972.30 985.20 856.70 0.005 0.689 0.001 0.001
     Treamt time(s) 189.6 182.8 426.9 0.001 0.822 0.001 0.001

*The CI of PTVnx included the volume GTVnd and there was no CI for GTVnd.