Diagnostic value ofPET/CTofrenal Inflammatory Disease

Objectives: To explore the value of ¹⁸F-FDG PET / CT in the diagnosis of renal inflammatory diseases.

Methods: From January 2011 to December 2019, ¹⁸F-FDG PET/CT imaging data of 11 cases with renal inflammatory disease diagnosed by pathology were analyzed retrospectively, including 5 males and 6 females, aged 40-75 years with an average of 60.5 ± 9.8 years. Manifestations of ¹⁸F-FDG PET / CT were observed and SUV_max was measured.

Results: Among the 11 patients, there were 7 cases of pyogenic nephritis and inflammatory pseudotumor, among which 6 cases showed high uptake, SUV_max was 13.3 ± 7.8, and 1 case showed uptake similar to renal parenchyma; There were 1 case of ANCA related nephritis and 3 cases of IgG4 related nephropathy, all of which showed high diffuse uptake of both kidneys, with SUV_max of 6.0 and 7.2 ± 4.0,respectively. The sensitivity of ¹⁸F-FDG PET/CT in the diagnosis of renal inflammatory diseases was 90.9% (10 / 11).

Conclusions: FDG can sensitively detect hidden infection in the whole body, which plays an important role in the qualitative and staging of renal inflammatory disease.