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Table 3 Comparison between the planned doses and the EPID-based doses for the treatment plans in the case of the original material

From: Fast 3D dosimetric verifications based on an electronic portal imaging device using a GPU calculation engine

 

Head & neck (6 MV)

Lung (6 MV)

Lung (10 MV)

Prostate (10 MV)

 

Diff mean dose (%)

Diff max dose (%)

Diff mean dose (%)

Diff max dose (%)

Diff mean dose (%)

Diff max dose (%)

Diff mean dose (%)

Diff max dose (%)

GTV

0.55

0.64

1.13

1.56

1.15

1.53

1.75

2.48

CTV

0.01

1.08

0.62

0.95

0.65

1.29

1.52

2.20

PTV

-0.38

1.08

-0.50

0.24

-0.24

0.78

0.62

2.20

Brain stem

-4.54

-3.95

      

Parotid

1.74

2.95

      

Spinal cord

-1.50

-3.15

-2.51

-0.27

-3.07

-0.83

  

Both lungs

  

-0.93

2.03

-1.27

2.18

  

Heart

  

-1.33

-1.13

-1.26

-0.45

  

Bladder

      

1.11

3.45

Rectum

      

2.94

2.74

Colon

      

0.95

1.39