Table 2 Patient-based diagnostic indices for MRI, CT, and [18F]FDG-PET-CT in detecting lymph node metastases based on original and imputed data
Modality | Prev LNM | Sensitivity | Specificity | PPV | NPV | AUCa |
|---|---|---|---|---|---|---|
Original data | ||||||
MRI | 19 (17–22) | 34 (31–36) | 93 (92–94) | 54 (52–57) | 85 (83–87) | 0.639 (0.607–0.670) |
CT | 24 (21–28) | 37 (33–41) | 91 (89–93) | 57 (53–61) | 82 (79–85) | 0.646 (0.603–0.688) |
[18F]FDG-PET-CT | 44 (35–52) | 73 (66–81) | 77 (70–84) | 71 (63–79) | 79 (72–86) | 0.787 (0.714–0.860) |
Imputed data | ||||||
MRI | 24 (22–26) | 48 (45–50) | 92 (91–94) | 66 (64–69) | 85 (83–87) | 0.706 (0.674–0.737) |
CT | 26 (23–29) | 40 (37–43) | 92 (91–94) | 64 (61–67) | 82 (79–84) | 0.667 (0.630–0.704) |
[18F]FDG-PET-CT | 46 (41–51) | 80 (76–84) | 79 (75–83) | 76 (72–81) | 82 (78–86) | 0.814 (0.752–0.876) |