title: Bruxism--before and after images--on 18F-FDG PET/CT.
abstract: Physical activity before F-FDG PET/CT can cause increased muscle glucose metabolism. We report markedly increased glucose metabolism in the masseter and temporalis muscles of a 53-year-old man who was clenching his teeth before the scan, and then resolution of this increased metabolism on a second scan 12 weeks later. SUVmax in the right masseter muscle was 26.9; 12 weeks later, the SUVmax was 1.6. This level of FDG uptake in bruxism has not yet been reported.
authors.affiliation: From the *Department of PET and Nuclear Medicine, Royal Prince Alfred Hospital, and †Sydney Medical School, University of Sydney, Camperdown, New South Wales, Australia.
authors.forename: Audrey E
authors.initials: AE
authors.lastname: Pinna
authors.forename: Jennifer
authors.initials: J
authors.lastname: Walter
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Fulham
mesh_terms: D002012:Bruxism / Q000000981:diagnostic imaging*; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D013902:Radiography, Thoracic; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18