Table 1 PTV coverage based on DVH analysis.

From: Dosimetric Comparison and Evaluation of Three Radiotherapy Techniques for Use after Modified Radical Mastectomy for Locally Advanced Left-sided Breast Cancer

Parameters

3DCRT-FinF

5F-IMRT

2P-VMAT

F

p1

p2

p3

D2%

55.50 ± 0.71

54.00 ± 0.51

54.93 ± 0.87

11.20

 < 0.001

 < 0.194

0.019

D98%

44.18 ± 0.56

48.29 ± 0.30

47.77 ± 0.35

285.72

 < 0.001

 < 0.001

0.026

V95%

78.23 ± 4.25

99.16 ± 0.33

98.45 ± 0.51

229.81

 < 0.001

 < 0.001

0.797

V110%

4.26 ± 3.73

0.22 ± 0.43

2.09 ± 3.38

4.81

0.022

0.466

0.309

HI

0.235 ± 0.017

0.114 ± 0.012

0.143 ± 0.025

122.63

 < 0.001

 < 0.001

0.002

CI

0.27 ± 0.07

0.64 ± 0.07

0.68 ± 0.07

102.79

 < 0.001

 < 0.001

0.425

MU

456.10 ± 20.98

1021.10 ± 343.10

403.60 ± 31.60

29.51

0.002

0.001

0.001

  1. Abbreviations: Vx = volume (%) receiving x dose (Gy) or higher; 3DCRT-FinF = three-dimensional conformal radiotherapy using
  2. field-in-field technique; 5F-IMRT = 5-field intensity-modulated radiotherapy; 2P-VMAT = 2-partial arc volumetric modulated arc therapy.
  3. Data presented as mean ± standard deviation. F values from ANOVA analysis (α = 0.05). p1: 3DCRT & 5F-IMRT;
  4. p2: 3DCRT-FinF & 2P-VMAT; p3: 5F-IMRT & 2P-VMAT. D2% = the maximum dose; D98% = the minimum dose.
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