Table 3. Diagnostic Performance, Sensitivity, and Specificity of CT Imaging Set and CT Plus PET/MR Imaging Set in the Follow-Up Group.
| Reviewer 1 | Reviewer 2 | |||||
|---|---|---|---|---|---|---|
| CT | CT + PET/MRI | P | CT | CT + PET/MRI | P | |
| Local recurrence | ||||||
| Az | 0.81 (0.64–0.92) | 1.00 (0.89–1.00) | 0.029 | 0.82 (0.66–0.93) | 0.94 (0.80–0.99) | 0.045 |
| Sensitivity (%)* | 55.6 (5/9) | 100.0 (9/9) | 0.063 | 55.6 (5/9) | 88.9 (8/9) | 0.125 |
| Specificity (%)* | 100.0 (26/26) | 100.0 (26/26) | NA | 73.1 (19/26) | 96.2 (25/26) | 0.070 |
| Distant lymph node metastasis | ||||||
| Az | 0.99 (0.89–1.00) | 1.00 (0.89–1.00) | 0.687 | 1.00 (0.89–1.00) | 1.00 (0.90–1.00) | 0.480 |
| Sensitivity (%) | 66.7 (4/6) | 100.0 (6/6) | 1.000 | 83.3 (5/6) | 100.0 (6/6) | 1.000 |
| Specificity (%) | 100.0 (29/29) | 100.0 (29/29) | NA | 100.0 (29/29) | 100.0 (29/29) | NA |
| Hepatic metastasis | ||||||
| Az | 0.87 (0.71–0.96) | 0.95 (0.82–1.00) | 0.117 | 0.95 (0.82–1.00) | 0.97 (0.85–1.00) | 0.694 |
| Sensitivity (%) | 70.6 (12/17) | 94.1 (16/17) | 0.125 | 88.2 (15/17) | 100.0 (17/17) | 0.500 |
| Specificity (%) | 88.9 (16/18) | 100.0 (18/18) | 0.500 | 100.0 (18/18) | 94.4 (17/18) | 1.000 |
| Peritoneal seeding | ||||||
| Az | 0.99 (0.88–1.00) | 1.00 (0.89–1.00) | 0.420 | 0.85 (0.69–0.95) | 0.85 (0.69–0.95) | 1.000 |
| Sensitivity (%) | 80.0 (4/5) | 100.0 (5/5) | 1.000 | 80.0 (4/5) | 80.0 (4/5) | 1.000 |
| Specificity (%) | 96.7 (29/30) | 96.7 (29/30) | NA | 100.0 (30/30) | 100.0 (30/30) | NA |
| Other metastasis | ||||||
| Az | 0.75 (0.58–0.88) | 1.00 (0.90–1.00) | 0.317 | 0.75 (0.58–0.88) | 0.75 (0.58–0.88) | 1.000 |
| Sensitivity (%) | 50.0 (1/2) | 100.0 (2/2) | 1.000 | 50.0 (1/2) | 50.0 (1/2) | NA |
| Specificity (%) | 100.0 (33/33) | 100.0 (33/33) | NA | 100.0 (33/33) | 100.0 (33/33) | NA |
Data were calculated using the z-test. The numbers in parentheses are 95% confidence intervals. *Calculated using the McNemar test. Numbers in parentheses are numbers of patients. Az = area under the receiver operating characteristic curve, NA = not assessable