title: Preliminary assessment of fluorine-18 fluorodeoxyglucose positron emission tomography in patients with bladder cancer.
abstract: The purpose of this study was to assess the feasibility of imaging of bladder cancer with fluorine-18 fluorodeoxyglucose positron emission tomography (FDG-PET) scanning. We studied 12 patients with histologically proven bladder cancer who had undergone surgical procedures and/or radiotherapy. Retrograde irrigation of the urinary bladder with 1000-3710 ml saline was performed during nine of the studies. Dynamic and static PET images were obtained, and standardized uptake value images were reconstructed. FDG-PET scanning was true-positive in eight patients (66.7%), but false-negative in four (33.3%). Of 20 organs with tumor mass lesions confirmed pathologically or clinically, 16 (80%) were detected by FDG-PET scanning. FDG-PET scanning detected all of 17 distant metastatic lesions and two of three proven regional lymph node metastases. FDG-PET was also capable of differentiating viable recurrent bladder cancer from radiation-induced alterations in two patients. In conclusion, these preliminary data indicate the feasibility of FDG-PET imaging in patients with bladder cancer, although a major remaining pitfall is intense FDG accumulation in the urine.
authors.affiliation: Department of Internal Medicine, Division of Nuclear Medicine, The University of Michigan Medical Center, Ann Arbor, Michigan, USA.
authors.forename: S
authors.initials: S
authors.lastname: Kosuda
authors.forename: P V
authors.initials: PV
authors.lastname: Kison
authors.forename: R
authors.initials: R
authors.lastname: Greenough
authors.forename: H B
authors.initials: HB
authors.lastname: Grossman
authors.forename: R L
authors.initials: RL
authors.lastname: Wahl
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000000981:diagnostic imaging* / Q000556:secondary; D003847:Deoxyglucose / Q000031:analogs & derivatives* / Q000652:urine; D005240:Feasibility Studies; D005260:Female; D005462:Fluorine Radioisotopes; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D014055:Tomography, Emission-Computed; D001749:Urinary Bladder Neoplasms / Q000000981:diagnostic imaging*
chemical_list: D005462:Fluorine Radioisotopes; D019788:Fluorodeoxyglucose F18; D003847:Deoxyglucose