title: Prognostic value of tumoral heterogeneity and volumetric parameters as measured by F18-FDG PET/CT in sinonasal cancer.
abstract: The objective of this study was to investigate the value of parameters assessed with F18-FDG PET/CT in predicting recurrence-free survival (RFS) and disease-specific survival (DSS) in patients with cancer of nasal cavity and paranasal sinus. Thirty-eight patients with cancer of nasal cavity (n = 14) and paranasal sinus (n = 24) who underwent PET/CT prior to curative treatment were enrolled. A volume of interest was placed on PET/CT images covering the entire tumor volume, and the maximum SUV (SUVmax), the mean SUV (SUVmean), and volumetric parameters of metabolic tumor volume (MTV) and total lesion glycolysis (TLG) were measured using thresholds of 40 % of SUVmax. The heterogeneity factor (HF) defined as the derivative of volume-threshold function from 40 to 80 % of SUV thresholds. RFS and DSS were defined as the time from the diagnosis to recurrence and death. Median values of SUVmax, SUVmean, MTV, TLG, and HF were 14.81, 9.16, 25.84, 150.74, and -0.496. SUVmaxwas higher in patients with advanced stage and nodal metastasis. High MTV and low HF group showed shorter RFS. Cox proportional hazards regression analysis revealed low HF was the only significant predictive factor on RFS. Furthermore, high TLG was associated with shorter DSS. High TLG was potent predictor of DSS by Cox proportional hazards regression analysis. In conclusion, the tumoral heterogeneity and volumetric parameters as measured by F18-FDG PET/CT could be significant prognostic surrogate markers in patients with sinonasal cancer.
authors.affiliation: Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea.
authors.forename: Bum Soo
authors.initials: BS
authors.lastname: Kim
authors.affiliation: Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea.
authors.forename: Kyoungjune
authors.initials: K
authors.lastname: Pak
authors.affiliation: Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, 179 Gudeok-Ro, Seo-gu, Busan, 602-739, Republic of Korea.
authors.forename: Keun-Ik
authors.initials: KI
authors.lastname: Yi
authors.affiliation: Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Republic of Korea.
authors.forename: In Joo
authors.initials: IJ
authors.lastname: Kim
authors.affiliation: Department of Otorhinolaryngology and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.
authors.forename: Hwan-Jung
authors.initials: HJ
authors.lastname: Roh
authors.affiliation: Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University School of Medicine, Pusan National University Hospital, 179 Gudeok-Ro, Seo-gu, Busan, 602-739, Republic of Korea. choks@pusan.ac.kr.
authors.forename: Kyu-Sup
authors.initials: KS
authors.lastname: Cho
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002277:Carcinoma / Q000000981:diagnostic imaging / Q000401:mortality / Q000473:pathology; D018572:Disease-Free Survival; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity / Q000000981:diagnostic imaging* / Q000473:pathology; D009364:Neoplasm Recurrence, Local; D009669:Nose Neoplasms / Q000000981:diagnostic imaging* / Q000401:mortality / Q000473:pathology; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging* / Q000401:mortality / Q000473:pathology; D000072078:Positron Emission Tomography Computed Tomography; D011379:Prognosis; D016016:Proportional Hazards Models; D019275:Radiopharmaceuticals; D047368:Tumor Burden
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18
keywords: Nose neoplasms; Paranasal sinus neoplasms; Positron emission tomography; Prognosis; Tumor burden