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Table 4 Differences of dose-volume parameters for the left ventricular myocardium after specific 3DCT image reconstruction and after accumulation

From: Comparison of the dose on specific 3DCT images and the accumulated dose for cardiac structures in esophageal tumors radiotherapy: whether specific 3DCT images can be used for dose assessment?

 

V5

V10

V20

V30

V40

Accumulation

36.82 ± 12.55

25.66 ± 10.47

19.36 ± 9.75

13.87 ± 8.39

3.50 ± 3.71

MIP

35.73 ± 10.50

25.58 ± 9.32

19.94 ± 8.62

15.44 ± 7.74

2.79 ± 2.79

AIP

31.91 ± 14.15

20.55 ± 11.47

15.25 ± 9.89

10.74 ± 8.22

1.57 ± 2.82

Min-IP

28.62 ± 17.29

15.81 ± 13.97

10.79 ± 11.59

7.13 ± 9.76

1.18 ± 2.76

Δ(MIP vs. Accumulation)

3.59 ± 2.73

3.45 ± 1.88

3.27 ± 1.72

3.01 ± 1.89

1.13 ± 1.40

Δ(AIP vs. Accumulation)

5.77 ± 3.01

5.19 ± 2.59

4.35 ± 2.60

3.56 ± 2.61

2.01 ± 2.15

Δ(Min-IP vs. Accumulation)

9.28 ± 4.29

10.66 ± 5.23

9.48 ± 5.31

7.83 ± 4.63

2.44 ± 2.32

p (MIP vs. Accumulation)

0.981

0.961

0.944

0.970

0.742

p (AIP vs. Accumulation)

0.546

0.692

0.967

0.121

0.039

p (Min-IP vs. Accumulation)

0.006

0.002

0.002

0.004

0.001