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. 2018 Feb 3;59(2):207–215. doi: 10.1093/jrr/rrx100

Table 3.

The standard conanical coefficients for canonical variates among these three variable sets for prostate cancer patients

Complexity vs quality Complexity vs γ(2D/3D) Plan quality vs γ(2D/3D) Complexity vs γ(IV) Plan quality vs γ(IV)
Canonical variate 1 Canonical variate 1 Canonical variate 2 Canonical variate1 Canonical variate1 Canonical variate 2 Canonical variate 1
Complexity parameter
 MU/CP −0.49 −0.15 −1.57 −1.69 0.53
 %MU/CP < 3 −0.02 0.28 −0.68 −0.46 0.23
 SA(cm2)/CP 0.34 −1.14 −2.85 1.63 2.04
 %SA < 5 × 5 cm2 0.18 0.19 −0.85 0.87 0.66
 MCSv/Beam(Arc) 0.26 0.66 0.17 −0.44 −0.13
 LT (mm/Arc) −0.28 0.68 −0.79 0.98 1.30
 PTV volume −0.006 0.39 1.38 −0.99 −1.39
Plan quality
 GTVV95% −0.51 −0.77 −0.26
 PTVV95% 0.42 −0.1 −0.44
 GTVHI 3.70 −4.33 −8.08
 PTVHI 0.42 −0.54 −0.59
CI 6.28 −6.05 −12.86
CN −5.81 5.54 11.96
 Rectum Dmean 0.31 0.09 −0.64
 Rectum V50 −0.50 0.1 0.86
 Bladder Dmean −0.44 0.07 0.48
 Bladder D40 0.42 0.03 −0.66
 Rfemoral D3 0.83 −0.61 −0.38
 Lfemoral D3 −3.20 −0.04 0.81
Deliverability (2D/3D gamma indices) Individual volume-based 3D gamma indices γ(IV)
 2D 4%/4 mm 0.86 0.81 0.69 0.009 −0.95 −0.49 γGTV
 2D 3%/3 mm −0.80 −0.86 −0.07 0.37 −0.56 −1.16 γCTV
 2D 2%/2 mm −0.24 −0.11 −1.14 0.35 0.58 0.84 γPTV
 3D 4%/4 mm −0.48 −0.30 0.03 0.55 0.18 −0.52 γRectum
 3D 3%/3 mm 0.11 1.51 0.26 0.69 0.11 −0.10 γlfemoral
 3D 2%/2 mm −0.25 −0.47 0.56 0.19 0.11 0.32 γr femoral
−0.82 0.18 0.39 γbladder

%MU/CP < 3 = the proportion of MU/CP less than 3, %SA < 5 × 5 cm2 = the proportion of SA less than 5 × 5 cm2, GTVV95% = the percentage volume of the GTV covered by the the 95% prescription isodose line, PTVV95% = the percentage volume of the PTV covered by the 95% prescription isodose line, GTVHI = the HI of the GTV, PTVHI = the HI of the PTV, lfemoral = left femoral head, rfemoral = right femoral head.