Browsing by Author "Ekinci, Ahmet Şiyar"

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    Role of PET/CT in treatment planning for head and neck cancer patients undergoing definitive radiotherapy
    (Asian Pacific Organization Cancer Prevention, 2014) Arslan, Sonay; Ekinci, Ahmet Şiyar; Eşbah, Onur; Uslu, Nuri; Kekilli, Kezban Esra; Demiröz Abakay, Candan; Şen, Feyza; Altay, Ali; Akpınar, Tayyar; Özkan, Lütfi; Uludağ Üniversitesi/Tıp Fakültesi/Radyasyon Onkolojisi Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Nükleer Tıp Anabilim Dalı.; 0000-0001-5380-5898; AAH-3855-2021; 55222520800; 35113034100; 54972030800; 37011914700; 55915679400
    Background: In this study, we aimed to investigate the benefits of 18F-deoxyglucose positron emission tomography/computed tomography (FGD-PET/CT) imaging for staging and radiotherapy planning in patients with head and neck cancer undergoing definitive radiotherapy. Materials and Methods: Thirty-seven head and neck cancer patients who had undergone definitive radiotherapy and PET/CT at the Uludag University Medical Faculty Department of Radiation Oncology were investigated in order to determine the role of PET/CT in staging and radiotherapy planning. Results: The median age of this patient group of 32 males and 5 females was 57 years (13-84years). The stage remained the same in 18 cases, decreased in 5 cases and increased in 14 cases with PET/CT imaging. Total gross tumor volume (GTV) determined by CT (GTVCT-Total) was increased in 32 cases (86.5%) when compared to total GTV determined by PET/CT (GTVPET/CT-Total). The GTV of the primary tumor determined by PET/CT (GTVPET/CT) was larger in 3 cases and smaller in 34 cases compared to that determined by CT (GTVCT). The GTV of lymph nodes determined by PET/CT (GTVLNPET/CT) was larger in 20 cases (54%) and smaller in 12 cases (32.5%) when compared to GTV values determined by CT (GTVLNCT). No pathological lymph nodes were observed in the remaining five cases with both CT and PET/CT. Conclusions: We can conclude that PET/CT can significantly affect both pretreatment staging and assessed target tumor volume in patients with head and neck cancer. We therefore recommend examining such cases with PEC/CT before treatment.