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Table 4 The motion characteristics of the case plan with 4D scheme.

From: Biological impact of geometric uncertainties: what margin is needed for intra-hepatic tumors?

 

Lt/Rt

AP

Sup/Inf

Max. displacement

1.6 mm

5.0 mm

13.0 mm

95%_SM

-2.5/-3.3

-1.8/-1.6

-4.0/-5.0

95%_IM

+1.0/-0.4

-2.4/+3.0

+1.4/-8.8

95%_G

-1.3/-3.2

-2.4/+2.6

-1.9/-12.6

 

EUDSF0.3

EUDSF0.5

EUDSF0.7

CTV_G

1.010

1.010

1.009

CTVa_G

1.006

1.006

1.006

CTVb_G

0.976

0.986

0.990

PTV_G

0.788

0.854

0.909

  1. The change of the 95% dose position of the dose profiles due to different geometry uncertainties and biological impact (EUD) for different margins are summarized.
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Radiation Oncology

ISSN: 1748-717X

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