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Table 2 Change of heart volume and MHD during radiotherapy (rate %, Mean ± SD)

From: Changes in cardiac volume determined with repeated enhanced 4DCT during chemoradiotherapy for esophageal cancer

Image

Location

0th–10th

0th–20th

0th–30th

HV (%)

MHD (%)

HV (%)

MHD (%)

HV (%)

MHD (%)

3DCT

upper

0.45 ± 4.35

−0.38 ± 2.09

3.06 ± 9.24

1.24 ± 3.29

−6.91 ± 15.34

−2.12 ± 4.81

middle

3.27 ± 4.32*

0.98 ± 1.41*

6.05 ± 6.99*

1.82 ± 2.13*

2.64 ± 9.99

0.95 ± 3.50

lower

1.06 ± 5.56

0.27 ± 2.00

−0.19 ± 10.79

−0.19 ± 3.56

2.44 ± 13.65

0.91 ± 4.78

EE

upper

−1.15 ± 4.51

−0.90 ± 1.42

1.10 ± 5.87

0.40 ± 2.28

−3.27 ± 12.11

−0.57 ± 4.38

middle

4.45 ± 2.07*

1.40 ± 1.03*

5.64 ± 5.30*

1.88 ± 1.79*

2.83 ± 6.85

0.70 ± 2.68

lower

0.10 ± 6.88

0.06 ± 2.27

1.14 ± 9.96

0.41 ± 3.16

2.72 ± 10.26

1.47 ± 4.03

MIP

upper

−1.54 ± 4.00

−1.24 ± 0.97

1.68 ± 6.17

0.20 ± 2.17

−3.12 ± 15.12

−0.71 ± 4.80

middle

4.52 ± 2.40*

1.29 ± 0.84*

4.51 ± 5.02*

1.29 ± 1.50*

2.67 ± 7.26

0.62 ± 2.54

lower

2.65 ± 9.12

0.28 ± 2.05

1.81 ± 9.05

0.52 ± 3.10

3.39 ± 10.96

1.19 ± 3.97

  1. Abbreviation: 0th–10th Comparison between the initial measure and the tenth fraction, 0th–20th Comparison between the initial measure and the twentieth fraction, 0th–30th Comparison between the initial measure and the thirtieth fraction, HV Heart volume, MHD Maximum heart distance, EE End expiratory of 4DCT, MIP Maximum intensity projection of 4DCT
  2. *represent the P < 0.05