Target Volume Determination 2015

CT (+ EUS) are most commonly used for defining GTV in oesophageal cancer, but CT is not able to precisely demonstrate the proximal and distal margins of oesophageal tumours in many cases.

PET-CT enables delineation of the biologically active tumour volume, and its depiction of oesophageal tumours has been shown to correlate well with patholgy

Standard implementation of PET-CT into the tumour delineation process for radiation treatment planning remains subject of research and requires further clinical validation