Particle Therapy 2017

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Sites of loco-regional relapse

Versteijne et al. Diseases of the Esophagus

(2015)

28

, 453–459

• Relation to high-dose volume

– 80% only inside

– 90% at least partially inside

GT

V

3.5 cm

3.5 cm

CTV

PT

V

PTV: 1 cm isotropic expansion of CTV