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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