Study design
We reviewed the medical records of all the patients who underwent PET/CT scans as part of FUO work-up between January 1, 2013 and January 30, 2018, at the Chaim Sheba Medical Center (Ramat Gan, Israel). With more than 1,900 beds, this is the largest and most comprehensive tertiary medical center in the Middle East.
Imaging data weas obtained from the picture archive and communication system (PACS, Carestream Health 11.0, Rochester, NY) and clinical data was obtained from the computerized medical records within our medical center.