ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

Full bladder

CTV to PTV expansion (cm)

GTV to PTV2 expansion (cm)

PTV

Lat

Ant

Post Sup Inf

Lat

Ant Post Sup Inf

Group 1

Standard

Standard Plan

0.8

1.5 1.2 1.5 0.8

Group 2 and

Small

0.5

0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5

Medium

Group 3

0.5

1.5 1.0 1.5 0.5 0.5 1.5 1.0 1.5 0.5

Large based on CT30 if CTV60- CTV30<50cm 3 Large Based on CT60 if CTV60- CT30=>50cm 3

Adaptive plan

0.8

2.0 1.2 2.5 0.8 0.8 2.0 1.2 2.5 0.8

0.5

1.5 1.0 1.5 0.5 0.5 1.5 1.0 1.5 0.5