TABLE 3

LRs for PET and CT

PETCT
Category++
Definitely benign1.49 (1.33–1.66)0.03 (0.01–0.12)1.22 (1.13–1.31)0.03 (0.01–0.21)
Probably benign1.81 (1.55–2.11)0.15 (0.09–0.25)1.23 (1.13–1.34)0.17 (0.08–0.37)
Indeterminate0.29 (0.03–2.71)1.01 (1.00–1.02)0.47 (0.32–0.70)1.27 (1.19–1.37)
Probably malignant3.15 (1.89–5.25)0.77 (0.69–0.84)3.15 (2.11–4.48)0.52 (0.44–0.62)
Definitely malignant9.90 (5.37–18.26)0.42 (0.35–0.50)3.24 (1.72–6.09)0.83 (0.77–0.90)
Definitely benign + probably benign*0.10 (0.06–0.16)0.11 (0.05–0.21)
Indeterminate + probably malignant + definitely malignant*5.18 (3.72–7.22)1.61 (1.41–1.84)
Sensitivity (%)91.7 (86.6–95.0)95.6 (91.3–97.9)
Specificity (%)82.3 (75.4–87.6)40.6 (33.0–48.7)
  • * Combined reading.

  • + = LR values associated with positive (abnormal) test result; − = LR values associated with negative (normal) test result.

  • Data in parentheses are 95% CIs.