Figure 7.

FACBC PET/MR imaging of a 65-year-old man with newly diagnosed prostate cancer found at biopsy (Gleason score, 4 + 4 = 8; PSA level, 3.6 ng/mL), who was referred for cancer staging. (a) T2-weighted MR image of the pelvis shows an 8-mm external iliac lymph node (arrow). (b) Axial fused FACBC PET/MR image obtained with a fully integrated PET/MR system shows intense tracer uptake in the lymph node (arrow). The findings at histopathologic examination helped confirm lymph node metastases. (Images courtesy of Brage Krüger-Stokke, MD, NTNU-MR Cancer Group and St. Olavs Hospital, Trondheim, Norway.)