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Table 3 Calculated CTV–PTV margins in 3-dimensions of different characteristics

From: Does the protocol-required uniform margin around the CTV adequately account for setup inaccuracies in whole breast irradiation?

Groups

Margins (mm)

LR

SI

AP

Age > 46 years

3.98

7.13

4.99

Age ≤ 46 years

3.93

6.52

5.03

BMI > 23.8 kg/m2

4.25

7.95

4.93

BMI ≤ 23.8 kg/m2

3.64

4.64

5.09

CC > 89 cm

4.37

7.66

5.24

CC ≤ 89 cm

3.31

4.50

4.82

BV > 657 cm3

4.22

7.54

5.29

BV ≤ 657 cm3

3.29

5.74

4.73

  1. LR left–right direction, SI superior–inferior direction, AP anterior–posterior direction, BMI body mass index, CC chest circumference, BV breast volume
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Radiation Oncology

ISSN: 1748-717X

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