Skip to main content

Table 2 Mean % dose difference (quoted as a percentage of the absolute value calculated with AAA) to organs at risk calculated using AAA or AXB 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)   
OAR and dose metric Mean difference [min, max] % (RA_AAA) – (RA_AXB) p
Cord PRV Dmax −3.0% [−3.9%, −1.6%] <0.05
Lung Mean −1.7% [−5.2%, −0.4%] <0.05
Lung V20Gy −2.7% [−8.3%, 0.0%] <0.05
Heart Mean −2.4% [−3.0%, −1.2%] <0.05
Heart V25Gy −5.7% [−7.4%, −4.5%] <0.05
Heart V40Gy −3.6% [−8.3%, −1.3%] <0.05
Liver Mean −1.2% [−2.2%, 0.0%] NS
b)   
OAR and dose metric Mean difference [min, max] % (CRT_AAA) – (CRT_AXB) p
Cord PRV Dmax −2.0% [ −8.2%, 2.7%] <0.05
Lung Mean −2.2% [ −4.5%, 0.3%] <0.05
Lung V20Gy −1.5% [ −3.7%, 0.4%] <0.05
Heart Mean −2.6% [ −3.4%, −1.7%] <0.05
Heart V25Gy −3.0% [−12.4%, −0.3%] <0.05
Heart V40Gy −6.9% [−18.4%, −2.2%] <0.05
Liver Mean −1.5% [ −2.5%, 0.6%] NS