TABLE 1

Statistical Analysis of Lesion Detection by DHC 18F-FDG and CT According to Regions

RegionModalityn*Sensitivity (%)Specificity (%)PPV (%)NPV (%)Accuracy (%)
AllDHC 18F-FDG10388 (80–94)80 (44–97)98 (92–100)42 (20–66)87 (79–93)
CT9362 (51–73)10 (0.2–44)85 (74–93)3.1 (0–16)57 (46–67)
LiverDHC 18F-FDG3377 (58–90)100 (29–100)100 (85–100)30 (7–65)79 (61–91)
CT3377 (58–90)0 (0–70)88 (70–97)0 (0–41)70 (51–84)
Lymph nodesDHC 18F-FDG21100 (83–100)0 (0–97)95 (76–100)0 (0–97)95 (76–100)
CT1829 (10–56)100 (2.5–100)100 (48–100)8 (0.2–36)33 (13–59)
PelvisDHC 18F-FDG17100 (79–100)100 (2.5–100)100 (79–100)100 (2.5–100)100 (80–100)
CT1477 (46–95)0 (0–97)91 (59–100)0 (0–71)71 (42–92)
LungDHC 18F-FDG10100 (66–100)100 (2.5–100)100 (66–100)100 (2.5–100)100 (69–100)
CT828 (4–71)0 (0–97)67 (9–99)0 (0–52)25 (3–65)
Bowel and primary tumor bedDHC 18F-FDG1075 (35–97)50 (1–99)86 (42–99)33 (0–90)70 (35–93)
CT986 (42–100)0 (0–84)75 (35–97)0 (0–97)67 (30–92)
OtherDHC 18F-FDG1382 (48–98)100 (16–100)100 (66–100)50 (7–93)85 (55–98)
CT1167 (30–93)0 (0–84)75 (35–97)0 (0–71)55 (23–83)
  • * n = number of lesions.

  • 95% confidence intervals are in parentheses.

  • Other: bone, n = 2; ovary, n = 2; peritoneal seeding, n = 2; pancreas, n = 2; breast, n = 1; thyroid, n = 1; adrenal, n = 1; abdominal wall, n = 1; kidney, n = 1.