Table 3.
The performance of ADCs in differentiation between benign and malignant sinonasal tumors
| ROI | b values | Threshold of ADCs (×10−3 mm2/s) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) |
|---|---|---|---|---|---|---|---|
| WS | 0,700 | 1.615 | 80.2 | 87.7 | 90.3 | 75.5 | 83.2 |
| WS | 0,1000 | 1.370 | 85.3 | 81.2 | 86.4 | 79.5 | 83.7 |
| PS | 0,700 | 1.245 | 68.1 | 93.7 | 94.0 | 67.3 | 78.7 |
| PS | 0,1000 | 1.175 | 78.4 | 82.2 | 86.7 | 72.8 | 80.2 |
ROI: Region of interest; WS: Whole slice; PS: Partial slice; PPV: Positive predictive value; NPV: Negative predictive value; ADC: Apparent diffusion coefficient.