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Table 2 Dose comparison results

From: Accuracy of inverse treatment planning on substitute CT images derived from MR data for brain lesions

  Diff. D min (%) Diff. D max (%) Diff. D median (%) Diff. D mean (%)
PTV 0.3 (1.6) −0.3 (0.6) −0.1 (0.1) 0.0 (0.0)
GTV 0.8 (1.0) 0.5 (0.6) 0.3 (0.8) 0.3 (0.7)
Brainstem −5.9 (7.9) −0.4 (4.0) 1.6 (3.7) −0.4 (1.9)
Pituitary gland −0.9 (4.0) 0.9 (3.5) 0.7 (3.5) 0.1 (3.4)
Right lens 4.8 (8.6) 0.4 (6.4) 2.3 (7.8) 2.3 (7.7)
Left lens 4.6 (2.0) −5.0 (24.8) 5.2 (4.4) 5.1 (4.0)
Right opticus 1.2 (5.6) 0.6 (4.7) 1.6 ( 4.0) 2.3 (5.0)
Left opticus 4.2 (4.3) 5.1 (11.6) −2.2 (11.6) 5.0 (6.3)
Chiasma −2.1 (3.1) −0.7 (3.5) −0.7 (3.3) −1.0 (3.6)
  1. Legend: Average differences between Dmax, Dmin, Dmedian and Dmean dose for plans optimized on CT and s-CT. The standard deviation calculated based on the five patients are presented within brackets.