Abstract :
[en] Positron emission tomography combined with computed tomography (PET/CT) is a nuclear imaging technique which provides anatomical and functional information. PET/CT is increasingly used in non-oncological nephrology since conventional radiological approaches after injection of contrast agents are relatively contra-indicated in patients with chronic kidney disease (CKD). PET/CT after i.v. injection of (18)F-fluoro-deoxy-glucose (FDG) is not toxic and is characterized by a high sensitivity. The level of irradiation ( approximately 5mSv) is acceptable. CKD does not significantly influence tissue uptake of (18)F-FDG. The purpose of the present review aims at detailing the non-oncological indications of (18)F-FDG PET/CT in general nephrology and after kidney transplantation. Particularly, (18)F-FDG PET/CT appears useful in the diagnosis of cyst infection in patients with autosomal dominant polycystic kidney disease, as well as in the characterization of retroperitoneal fibrosis. In kidney transplant recipients, (18)F-FDG PET/CT may help in the diagnostic work-up of suspected acute rejection, thereby eventually avoiding unnecessary kidney transplant biopsy. Perspectives in (18)F-FDG PET/CT imaging are discussed, including innovative approaches of image analysis.
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