Comparison between CT- and FDG-PET-defined target volumes for radiotherapy planning in head-and-neck cancers.

Henriques de Figueiredo, Bénédicte; Barret, Olivier; Demeaux, Hélène; Lagarde, Philippe; De-Mones-Del-Pujol, Erwan; Kantor, Guy; de Clermont-Gallerande, Henri; Richaud, Pierre et al. · Radiother Oncol · 2009

case_series · Level IV

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Abstract

Nine patients with head-and-neck cancer underwent computerized tomography (CT) simulation and [(18)F]-fluorodeoxyglucose positron emission tomography (FDG-PET) to compare the radiotherapy target volumes. The PET volumes were delineated with an automatic segmentation based on the source-to-background ratio. The volume comparison showed a reduction and qualitative discrepancies between the PET- and CT-volumes.

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