Molecular Imaging 2017

Lymph nodes: Changing CTV-concept in mediastinum

Non systematic nodal spread Diagnostig uncertainty of CT based N-staging

„Elective nodal irradiation“ (ENI) = Prophylactic inclusion of large parts of mediastinum in CTV  high doses to large volumes of normal tissue  limited possibility for dose escalation

No randomised prospective data supporting ENI

Perez, Brady 1992

 Concept of ENI presently being left

Slide 17