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Table 2 Diagnostic characteristics of 68Ga-citrate PET/CT and 18F-FDG PET/CT imaging in detecting infected lower limb prostheses

From: Potential usefulness of 68Ga-citrate PET/CT in detecting infected lower limb prostheses

  68Ga-citrate PET/CT 18F-FDG PET/CT
Case # Site Surgical results BPI uptake Periprosthetic soft tissue uptake MV Diagnostic results BPI uptake Periprosthetic soft tissue uptake MV Diagnostic results
1 RH + Yes Yes 817.00 + (TP) Yes Yes 1212.13 + (TP)
2 LH + No Yes 576.90 + (TP) No Yes 781.12 + (TP)
3 RK + Yes No 310.80 + (TP) Yes No 560.66 + (TP)
4 LH No No 147.18 − (TN) No Yes 469.88 + (FP)
5 LH No No 366.66 − (TN) No No 402.01 − (TN)
6 LK + Yes No 584.26 + (TP) Yes Yes 955.45 + (TP)
7 RK + Yes Yes 473.44 + (TP) Yes Yes 666.63 + (TP)
8 LH + Yes Yes 377.26 + (TP) No Yes 626.08 + (TP)
9 RK + Yes Yes 595.68 + (TP) Yes Yes 1078.56 + (TP)
10 LK No No 338.31 − (TN) Yes Yes 434.44 + (FP)
11 LH + Yes No 579.84 + (TP) Yes No 643.07 + (TP)
12 LH No No 327.98 − (TN) No No 865.39 − (TN)
13 LH Yes Yes 424.18 + (FP) Yes Yes 584.04 + (FP)
14 LH + Yes No 504.58 + (TP) Yes Yes 873.08 + (TP)
15 LK + Yes Yes 358.36 + (TP) Yes Yes 364.30 + (TP)
16 RH No No 173.43 − (TN) Yes No 278.18 + (FP)
17 RH + Yes Yes 348.87 + (TP) Yes Yes 481.64 + (TP)
18 LK + Yes Yes 376.59 + (TP) Yes Yes 592.65 + (TP)
19 LH + Yes Yes 477.37 + (TP) Yes Yes 717.30 + (TP)
20 LH No No 291.57 − (TN) No No 496.38 − (TN)
21 RH + Yes Yes 386.32 + (TP) Yes Yes 611.08 + (TP)
22 RK + Yes Yes 375.07 + (TP) Yes Yes 542.73 + (TP)
23 RK + Yes Yes 441.48 + (TP) Yes Yes 514.63 + (TP)
24 RH No No 359.94 − (TN) Yes Yes 406.57 + (FP)
25 RH + Yes Yes 273.37 + (TP) Yes Yes 351.80 + (TP)
26 LH + No No 247.07 − (FN) No Yes 259.58 + (TP)
27 LK + Yes Yes 265.47 + (TP) Yes Yes 325.06 + (TP)
28 RH + Yes Yes 494.83 + (TP) Yes Yes 533.03 + (TP)
29 RK + Yes Yes 363.75 + (TP) Yes Yes 546.30 + (TP)
30 LK + Yes No 309.42 + (TP) Yes Yes 387.73 + (TP)
31 LK + Yes Yes 266.16 + (TP) Yes Yes 389.33 + (TP)
32 RK + Yes Yes 492.82 + (TP) Yes Yes 656.04 + (TP)
33 LK + Yes Yes 297.40 + (TP) Yes Yes 342.49 + (TP)
34 RK + No No 389.66 − (FN) Yes Yes 548.37 + (TP)
  1. RH right hip, LH left hip, RK right knee, LK left knee, BPI bone-prosthesis interface, MV metabolic volume, TP true positive, TN true negative, FP false positive, FN false negative