... al.:18F-FDG PET/CT-based gross tumor volume definition for radiotherapy in head and neck Cancer: a correlation study between suitable uptake value threshold and tumor parameters. Radiation Oncology ... volume definition for radiotherapy in head and neck Cancer: a correlation study between suitable uptake value threshold and tumor parametersChia-Hung Kao1,3, Te-Chun Hsieh1,5, Chun-Yen Yu2,5, Kuo-Yang ... Cidda C,D’Avenia P, Fattori S, Montini GC, Valentini G, Proietti A, Algranati C: Radiotherapy planning: PET/CT scanner performances in the definition of gross tumour volume and clinical target volume. ...