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Wanet M et al. Radiother
Oncol 2011;98:117-25.
•
N=10 NSCLC patients
•
GTV delineation on CT
±
PET
•
Comparison with surgical
specimen
•
PET yields more robust
delineation in poorly
defined tumors
•
Gradient based seg. outper-
formed threshold method in
terms of accuracy and
robustness
Gradient-based PET segmentation improves
target volume definition in NSCLC