Usefulness of Respiratory-Gated ¹â¸F-FDG PET/CT in Detecting Upper Abdominal Fever Focus
10.1007/s13139-018-0534-9
- Author:
Sungwoo BAE
1
;
Ji In BANG
;
Yoo Sung SONG
;
Won Woo LEE
Author Information
1. Department of Nuclear Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13620, South Korea. wwlee@snu.ac.kr
- Publication Type:Case Report
- From:Nuclear Medicine and Molecular Imaging
2018;52(5):380-383
- CountryRepublic of Korea
- Language:English
-
Abstract:
Respiratory-gated ¹â¸F-fluorodeoxygluocse (¹â¸F-FDG) PET/CT has been successfully used to better localize malignancies in the lung or upper abdominal organs. However, clinical usefulness of respiratory-gated ¹â¸F-FDG PET/CT in detection of fever focus has not been reported yet. A 68-year-old male patient with a history of living donor liver transplantation and biliary stenting was referred for ¹â¸F-FDG PET/CT due to fever of unknown origin (FUO). To find the accurate fever focus, respiratory-gated and non-gated ¹â¸F-FDG PET/CT was performed. Respiratory-gated PET/CT readily revealed prominent hypermetabolic lesion in the distal common bile duct (CBD) area where previous surgical graft was in situ. Maximum standardized uptake value (SUVmax) and SUVratio (SUR) were greater in the gated PET/CT (SUVmax 5.4 and SUR 3.5) than in the non-gated PET/CT (SUVmax 4.6 and SUR 3.0). Fever dramatically subsided after removal of the graft in the CBD. This case report implies that respiratory-gated ¹â¸F-FDG PET/CT can visualize upper abdominal fever focus with better contrast than the conventional non-gated method.
