Molecular Imaging 2017

However: the contouring method matters!

25 primary NSCLC tumors, 4 contouring methods: 1 visual, 3 thresholding correlation of differences with - SUV max - size of lesion - FDG-Inhomogeneity

180

p=0.0004

120

p=0.0002

GTV 2.5 165 ml

GTV vis 158 ml

60

GTV bg 95 ml

GTV 40 54 ml

0

mean volume (ml)

GTV

40

GTV

bg

Nestle JNM 2005