

4D-PET/CT vs. 3D-PET/CT
ESTRO Teaching Course Advanced Imaging: PET – Reconstruction, Contouring
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Aristophanous et al, IJROBP 2012; 82(1): e99-105.
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Comparison of PET-based GTV contouring on 3D- vs. 4D PET
(different phases: 20%, 60%)
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RT volumes contoured on 4D-PET (orange) were larger than 3D-
PET volumes (pink)