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Table 2 The difference in DVIs from the reference plan for the PTV

From: Geometric and dosimetric impact of 3D generative adversarial network-based metal artifact reduction algorithm on VMAT and IMPT for the head and neck region

 

VMAT

IMPT

D98% (%)

D50% (%)

D2% (%)

D98% (%)

D50% (%)

D2% (%)

m4

Water

0.2 (− 0.7 to 0.8)

0.1 (0.0–0.3)

0.5 (0.0–1.1)

0.0 (0.0–0.4)

0.0 (0.0–0.0)

0.0 (0.0–0.0)

GAN-MAR

− 0.1 (− 3.0 to 0.1)

 − 0.1 (− 0.2 to 0.1)

0.0 (− 0.2 to 0.0)

0.0 (− 0.2 to 0.1)

0.0 (0.0–0.0)

0.0 (0.0–0.0)

p value

< 0.05

< 0.05

< 0.05

< 0.05

< 0.05

< 0.05

m8

Water

0.4 (0.1–0.9)

0.1 (0.0–0.3)

0.6 (0.0–1.1)

0.0 (− 0.3 to 0.4)

0.0 (0.0–0.0)

0.0 (− 0.1 to 0.0)

GAN-MAR

− 0.4 (− 2.4 to 0.0)

− 0.2 (− 0.5 to 0.1)

− 0.1 (− 0.4 to 0.0)

− 0.3 (− 0.8 to 0.2)

0.0 (0.0–0.0)

0.0 (0.0–0.0)

p value

< 0.05

0.29

0.70

< 0.05

0.62

0.68

  1. Data are shown in median (minimum–maximum)
  2. DVI dose-volumetric index, PTV planning target volume, VMAT volumetric-modulated arc therapy, IMPT intensity-modulated proton therapy, Dxx% dose covering xx% of the volume