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Table 1 PTV dosimetric endpoints of TD-3DCRT, TD-IMRT and FIF techniques for AWBRT

From: Does TomoDirect 3DCRT represent a suitable option for post-operative whole breast irradiation? A hypothesis-generating pilot study

Endpoint

Technique

Value

p

V 95% (%)

TD-3DCRT

99.9 ± 0.1

 

TD-IMRT

98.9 ± 1.2

p < 0.001

FIF

92.3 ± 2.1

p < 0.001

V 105% (%)

TD-3DCRT

0.2 ± 0.3

 

TD-IMRT

0.3 ± 0.3

NS

FIF

0.5 ± 0.5

NS

V 107% (%)

TD-3DCRT

0.1 ± 0.2

 

TD-IMRT

0.1 ± 0.1

NS

FIF

0.1 ± 0.5

p < 0.05

D 1% (%)*

TD-3DCRT

3.2 ± 0.8

 

TD-IMRT

3.4 ± 0.8

NS

FIF

4.6 ± 1.0

p < 0.01

HI

TD-3DCRT

0.965 ± 0.006

 

TD-IMRT

0.954 ± 0.011

p < 0.01

FIF

0.906 ± 0.012

p < 0.001

NC

TD-3DCRT

0.618 ± 0.062

 

TD-IMRT

0.620 ± 0.067

NS

 

FIF

0.651 ± 0.072

p < 0.05

  1. Statistically significant differences between TD-3DCRT and the other techniques were considered significant for p < 0.05.
  2. *as percentage of Rx.
  3. Two-tailed p values from paired Wilcoxon test.
  4. Data presented as mean ± standard devation.