Skip to main content

Table 3 Calculation geometry comparisons

From: Treatment planning using MRI data: an analysis of the dose calculation accuracy for different treatment regions

  MRbulk/CT CTbulk/CT CThom/CT
Treatment area Mean [range] % St.d. % Mean [range] % St.d. % Mean [range] % St.d. %
Prostate 0.2 [-0.8; 0.9] 0.5 0.8 [0.1; 1.1] 0.3 -1.6 [-2.3; -1.6] 0.2
Thorax 0.2 [-0.6; 0.9] 0.4 0.5 [0.0; 1.0] 0.3 1.4 [-0.8; -6.5] 2.1
Head&Neck - - -0.3 [-0.8; 0.1] 0.3 -0.3 [-1.1; 0.6] 0.5
Brain - - 0.0 [-0.7; 1.5] 0.6 -1.5 [-2.4; -0.7] 0.5
  1. The table shows comparisons between the different calculation geometries and normal CT geometry in percent. MRbulk designates bulk density assigned MR data. CTbulk designates bulk density assigned CT data. CThom designates calculations performed without inhomogeneity corrections on CT data.