From: Gradient-based delineation of the primary GTV on FLT PET in squamous cell cancer of the thoracic esophagus and impact on radiotherapy planning
Parameter
plan GRAD
plan CT
t
P
CI
0.75 ± 0.06
0.74 ± 0.06
0.94
0.38
HI
1.13 ± 0.02
1.14 ± 0.03
−1.16
0.28