Table 4 Comparison of standard deviations (SD) in mm of intra-fraction positioning errors found in the literature as well as the Pos_Old and Pos_New positioning systems
Authors | Positioning systems | SD (mm) for intra-fraction CBCT |
|---|---|---|
Hyde et al | Elekta BodyFIX system | LR = 0.6; CC = 0.5 and AP = 0.5 |
Our center | Pos_New | LR = 0.5; CC = 0.5 and AP = 0.7 |
Dahele et al | Posirest | LR = 0.9; CC = 0.6 and AP = 0.7 |
Li et al | Elekta BodyFIX system | LR = 0.9, CC = 0.7 and AP = 0.9 |
Li et al | Evacuated cushion | LR = 1.3; CC = 1.2 and AP = 1.0 |
Li et al | Thermoplastic S-frame | LR = 1.3, CC = 0.9, and AP = 1.1 |
Foster et al | Evacuated cushion | LR = 1.05; CC = 1.23 and AP = 1.04 |
Our center | Pos_Old | LR = 0,9; CC = 1,5 and AP = 0,7 |