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Table 2 Systematic and random translational errors attributed to interfractional prostate motion (see Table 1) for a selection of studies (lines 2–4) in comparison to residual errors (line 5: estimated by the deviations between two measurement methods of prostate position) and errors by intrafractional prostate motion (line 6)

From: Appropriate patient instructions can reduce prostate motion

Reference Type of error Left-Right (LR) [mm] Sup-Inf (SI) [mm] Ant-Post (AP) [mm] Comments
Current study Interfraction motion ∑= σ = 0.5 0.7 1.4 1.8 1.1 1.8 Bowel instructions
van Herk 2004 [8] Interfraction motion ∑ = σ = 0.9 0.9 1.7 1.7 2.7 2.7 Bowel instructions not mentioned
Soete et al. 2007 [13] Interfraction motion ∑ = σ = 1.3 1.6 4.2 2.3 4.3 2.8 Bowel instructions not mentioned
Tanyi et al. 2010 [14] Interfraction motion ∑= σ= 0,5 0,4 2,9 2,3 3,4 2,5 Bowel instructions not mentioned
Tanyi et al 2010 Residual error ∑= σ = 0.6 1.4 0.6 1.4 0.5 1.6 CBCT vs. Calypso
Tanyi et al 2010 Intrafraction motion ∑ = σ = 0.3 0.8 0.7 1.4 0.5 1.3 Calypso System
  1. Σ = systematic error, σ = random error, LR = left-right, SI = superior-inferior, AP = anterior-posterior.