Fig. 3

Surgical trauma increased the glucose metabolism identified by 18F-FDG PET/CT in hippocampal region. A Representative images of 18F-FDG PET/CT scanning in hippocampal region at 3 d after surgery. B Changes in 18F-FDG uptake rate of hippocampal region at 3 d after surgery. *P < 0.05 versus control group by Student's t test. n = 5. Data are represented as mean ± SD. The calibration bar represents the radioactivity of 18F-FDG uptake measured per unit volume (kBq/ml) with blue = 0 and red = 1500. The 18F-FDG uptake rate were standardized to body weight with SUVbwg/ml