Diagnostic Accuracy of 99mTc-CXCL8 SPECT
| Analysis | Sensitivity | Specificity | PPV | NPV |
| Per-patient (n = 31) | ||||
| 99mTc-CXCL8 SPECT | 95% (77%–99%) | 44% (14%–79%) | 81% (61%–93%) | 80% (28%–99%) |
| Endoscopy | 71% (48%–89%) | 70% (38%–93%) | 83% (59%–96%) | 54% (25%–81%) |
| Per-segment | ||||
| 99mTc-CXCL8 SPECT (n = 92) | 82% (68%–92%) | 72% (57%–84%) | 74% (60%–85%) | 81% (66%–91%) |
| Endoscopy (n = 74) | 74% (56%–87%) | 85% (70%–94%) | 81% (63%–92%) | 79% (64%–90%) |
| Per-segment, for different cutoffs | ||||
| ≥Bone marrow (grade 2–3) | 69% (53%–82%) | 85% (72%–94%) | 82% (66%–92%) | 74% (60%–85%) |
| Bone marrow (grade 3) | 62% (47%–76%) | 94% (82%–99%) | 90% (74%–98%) | 72% (59%–83%) |
Data in parentheses are ranges.