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Table 5 Plan score table of the four treatment techniques

From: A comparative dosimetric study of left sided breast cancer after breast-conserving surgery treated with VMAT and IMRT

Structure

Dose Parameter

2 F-IMRT

4 F-IMRT

2Arc-VMAT

1Arc-VMAT

PTV

HI

0

0

1

1

CI

0

0

1

1

CN

0

0

1

1

MU

1

0

0

0

Time

1

0

0

0

Lung.L

Dmean

1

0

1

0

V5

1

0

1

0

V20

0

0

0

0

V40

0

0

0

1

Heart

Dmean

1

1

0

0

V5

1

0

0

0

V20

1

1

0

1

V40

0

0

0

1

Coronary artery

Dmean

0

0

0

0

V5

1

0

0

0

V20

0

0

0

1

V40

0

0

0

1

Healthy tissue

Dmean

1

1

1

0

Breast.R

Dmean

1

0

0

0

Liver

Dmean

1

1

1

0

P-cord

Dmean

1

1

1

0

Eso

Dmean

1

1

1

0

Lung.R

Dmean

1

0

1

0

Total Score

14

6

10

8

Scores from Heart and CA

4

2

0

4