TABLE 4

Comparison of Diagnostic Performance of 18F-FDG PET/CT Versus CT of the Thorax/Abdomen

Performance18F-FDG PET/CT (n = 95)CT (n = 102)P*
Cancer prevalence20%20%
Sensitivity83% (57%–96%)70% (46%–88%)0.45
Specificity96% (89%–99%)85% (76%–92%)0.028
Accuracy94% (89%–99%)82% (74%–89%)0.017
Positive predictive value83% (59%–96%)54% (33%–74%)0.057
Negative predictive value96% (90%–99%)92% (84%–97%)0.33
  • * Fisher exact test. Numbers in parentheses are 95% confidence intervals calculated using the Wald method.