title: How much intravenous contrast is needed in FDG-PET/CT?
abstract: Intravenous, iodinated contrast agents are used routinely for CT (ceCT) imaging but only applied reluctantly for FDG-PET/CT due to possible artefacts. Only for few oncological PET/CT indications, the role of IV contrast agent has been clarified. Essentially, if any knowledge regarding vascular structures or tumour invasion into adjacent structures are needed, a ceCT as part of the combined PET/CT exam should be implemented. However, for some indications like lymphoma, contrast seems not to be necessary. Therefore, imaging procedures for the use of IV contrast for PET/CT have to be adapted individually for each FDG-PET/CT indication to especially reduce unnecessary radiation burden to the patient.
authors.affiliation: Departement of Nuclear Medicine, University Hospital Zurich.
authors.forename: K
authors.initials: K
authors.lastname: Strobel
authors.forename: C M
authors.initials: CM
authors.lastname: Thuerl
authors.forename: T F
authors.initials: TF
authors.lastname: Hany
mesh_terms: D003287:Contrast Media; D005260:Female; D019788:Fluorodeoxyglucose F18; D006689:Hodgkin Disease / Q000000981:diagnostic imaging; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging; D010051:Ovarian Neoplasms / Q000000981:diagnostic imaging; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging; D049268:Positron-Emission Tomography / Q000379:methods*; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18