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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