Skip to main content

Table 2 Comparison of the delivered dose to CTV and organs at risk for free breathing and breath-hold treatment techniques: convolution with the probability density functions

From: Incorporating breath holding and image guidance in the adjuvant gastric cancer radiotherapy: a dosimetric study

  

CTV

Liver

L kidney

R kidney

  

V45

V42.75

V30

V15

V15

  

Mean ± SD (%)

Mean ± SD (%)

Mean ± SD (%)

Mean ± SD (%)

Mean ± SD (%)

Static plan

IMRTFB

99.7 ± 0.5

100.0 ± 0.1

N1*

N1*

N1*

IMRTIGBH

99.7 ± 0.6

100.0 ± 0.0

−5.6 ± 4.7

−6.0 ± 8.8

−5.4 ± 7.9

p value

0.96

0.76

0.01

0.09

0.09

Convoluted plan

IMRTFB

99.7 ± 0.3

100.0 ± 0.1

N2*

N2*

N2*

 

IMRTIGBH

99.8 ± 0.4

100.0 ± 0.0

−3.8 ± 5.4

−14.8 ± 9.9

−11.0 ± 7.7

 

p value

0.78

0.33

0.08

<0.01

<0.01

  1. N1* for dose to the organs at risk, the free breathing plans were used as the reference in the comparison (static plan). N2* for dose to the organs at risk, the convoluted free breathing plans were used as the reference in the comparison (convolved plan).