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Table 2 Evaluated dose parameters

From: Re-irradiation of spinal column metastases by IMRT: impact of setup errors on the dose distribution

  Corrected Uncorrected t-test
Mean SD Mean SD p value
CTV V 95% 86.6 1.9 81.6 3.8 0.0036
  D AVG 98.9 0.3 98.4 1.2 0.3284
  D 99% 79.6 2 78 1.5 0.0860
  D 01% 104.8 0.7 104.3 1.4 0.3413
  H 0.26 0.03 0.27 0.02 0.3383
PTV V 95% 89.8 1.4 79.4 6.3 0.0007
D AVG 99.6 0.2 97.7 1.2 0.0010
D 99% 80.4 1.7 76.4 3.5 0.0091
D 01% 105.3 0.7 103.8 1.4 0.0148
H 0.25 0.02 0.28 0.03 0.0329
SC (D 0.1ccm )% 75.1 0.5 85.1 5.7 0.0005
(D 0.1ccm )Gy 18.0 0.1 20.4 1.4 0.0005
D 99% 37.2 14.6 38.3 13.6 0.8731
D AVG 63.3 1.7 68.9 3.5 0.0008
(V 75% )ccm 0.1 0.0 3.7 3.6 0.0160
  1. Comparison of evaluated dose values with and without HexaPOD™ setup correction. A p-value of less than 0.05 is assumed to be significant.