How do you define involved field radiotherapy for lung cancer?

Although, there is no consensus definition for “involved field” for the mediastinal nodes, my practice is to target mediastinal lymph nodes with involved field radiotherapy using the following algorithm: We start by contouring the lymph node GTV using a PET/CT with IV contrast. All FDG-avid and/or s...

At the dawn of CT based treatment planning, we analyzed retrospectively "field size" at the University of Michigan, and found that as we attempted to "dose escalate" with aid of these then new tools, it was impractical to include "traditional" nodal targets, mostly supraclavicular nodes and contrala...