Diagnostic performance of T1ρ imaging for detecting malignancy of NPC from nasopharyngeal benign hyperplasiaa
| T1rho Mean | T1rho SD | T1rho Skewness | |
|---|---|---|---|
| AUC | 0.72 (0.60–0.81) | 0.95 (0.88–0.99) | 0.72 (0.61–0.81) |
| P value | .001 | .001 | .001 |
| Threshold | ≤62.70 × ms | ≤14.50 × ms | ≤0.57 |
| Sensitivity (%) | 58.1 | 88.4 | 48.8 |
| Specificity (%) | 90.2 | 95.1 | 90.2 |
| PPV (%) | 86.2 | 95.0 | 84.0 |
| NPV (%) | 67.3 | 88.6 | 62.7 |
| Accuracy (%) | 73.8 | 91.7 | 69.0 |
Note:—PPV indicates positive predictive value; NPV, negative predictive value
↵a Unless otherwise indicated, data in parentheses are 95% confidence intervals. P values < .05 indicate statistical significance.