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Table 3 Summary of the DVH analysis for the CTV and ITV for the entire cohort of patients

From: Feasibility of stereotactic body radiation therapy with volumetric modulated arc therapy and high intensity photon beams for hepatocellular carcinoma patients

Parameter

CTV

ITV

Volume (cm 3 )

131.1 ± 85.2

166.2 ± 200.2

Mean (Gy)

53.8 ± 2.7

53.1 ± 2.3

SD (Gy)

3.3 ± 1.0

3.9 ± 1.1

HI (Gy)

0.19 ± 0.03

0.22 ± 0.05

PCI

n.a.

0.98 ± 0.02

PGI

n.a.

3.82 ± 0.93

D 1% (Gy)

58.7 ± 3.1

58.5 ± 3.4

D 99% (Gy)

45.0 ± 3.7

42.7 ± 3.9

V 90% (%)

97.6 ± 4.1

94.8 ± 5.4

V 95% (%)

93.6 ± 7.7

89.5 ± 10.0

  1. St. Dev: standard deviation; Dx%: dose received by at least x% of the volume; Vx%: volume receiving at least x% of the dose. HI = homogeneity index, PCI = Paddick conformity index, PGI = Paddick gradient index, n.a, not applicable.
  2. Data are reported as average values plus or minus standard deviation.
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Radiation Oncology

ISSN: 1748-717X

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