TVD 2017

GTV delineation: PET vs CT & pathology

PET-CT delineation

Overlapping measurements

Pathology

lenght

Delineation modalities:

1. CT: manual

2. SUV bcg + 20% (SUV max – SUV bcg)

GTV volume

3. SUV bcg + 40% (SUV max – SUV bcg)

automatic

4. SUV 2.5;

5. 40% SUV max

Yu V. et al – Radiother Oncol. – 2009