Molecular Imaging 2017

Which (semi-)automatic method are you using for PET based target volume delineation?

A. Only manual. B. Absolute SUV threshold (e.g. SUV=2.5) C. Relative SUV threshold (e.g. Th=50%SUV max ) D. Source-to-

78%

4% 7% 4% 7%

Background methods

E. Grandient-based auto-contouring

13