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Table 1 Comparison of target volume dose calculated using AAA or AXB for all patients for a) RapidArc plans and b) 3D conformal radiotherapy (CRT) plans

From: Comparison of Acuros (AXB) and Anisotropic Analytical Algorithm (AAA) for dose calculation in treatment of oesophageal cancer: effects on modelling tumour control probability

a)   
Target (dose metric) Mean dose [min, max] in Gy p
RA_AAA RA_AXB
CRT_AAA CRT_AXB
GTV (mean) 49.9 [49.6, 50.0] 48.8 [48.3, 49.6] 0.01
PTV (D95%) 48.7 [48.0, 49.1] 47.7 [47.1, 48.2] 0.01
PTV (median) 50.0 (normalisation) 49.1 [48.7, 49.5] 0.01
PTV (max) 52.3 [51.5, 53.1] 53.1 [52.5, 53.9] 0.01
PTV_Lung (mean) 49.6 [49.2, 49.8] 49.7 [49.0, 50.1] 0.18
PTV_tissue (mean) 49.9 [49.8, 50.0] 49.0 [48.7, 49.5] 0.01
b)   
Target (dose metric) Mean dose [min, max] in Gy p
CRT_AAA CRT_AXB
GTV (mean) 50.6 [49.8, 51.2] 49.6 [49.0, 50.1] 0.01
PTV (D95%) 48.2 [45.7, 49.4] 47.4 [44.9, 48.6] 0.01
PTV (median) 50.2 [49.6, 50.7] 49.2 [48.1, 49.7] 0.01
Norm point 50.0 (normalisation) 48.8 [48.0, 49.7]  
PTV (max) 52.9 [51.9, 53.8] 53.4 [52.4, 54.8] 0.01
PTV_Lung (mean) 49.4 [47.8, 50.3] 49.4 [47.7, 50.7] 0.12
PTV_tissue (mean) 50.2 [49.5, 50.7] 49.2 [48.4, 49.8] 0.01