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Table 1 Dosimetric results for the PTV from 2-step and direct optimized IMRT for the tested TPS.

From: The impact of direct aperture optimization on plan quality and efficiency in complex head and neck IMRT

Parameter

DAO

KonRad

DSS

p

Median [Gy]

50.3 ± 0.1

50.3 ± 0.1

50.3 ± 0.1

-

V107% [%]

0.7 ± 0.4

1.2 ± 0.6

0.3 ± 0.5

a, b, c

V95% [%]

94.7 ± 0.8

94.2 ± 1.3

94.7 ± 1.1

a

V90% [%]

99.1 ± 0.4

98.7 ± 1.1

99.1 ± 0.4

-

HI [-]

0.13 ± 0.01

0.14 ± 0.01

0.12 ± 0.01

a, b, c

  1. Given is the median dose, the volume which receives 107%, 95% and 90% of the prescribed dose as well as the homogeneity index.
  2. Statistical significance (p < 0,05): a: Panther DAO vs KonRad, b: Panther DAO vs DSS, c: KonRad vs DSS,
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Radiation Oncology

ISSN: 1748-717X

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