Table 4.
Diagnostic accuracy of imaging techniques in staging axillary nodes
| Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) | |
|---|---|---|---|---|---|
| US |
59.88 |
82.09 |
58.14 |
83.12 |
75.57 |
| MRI |
61.73 |
78.24 |
54.35 |
82.97 |
73.36 |
| PET-CT |
62.41 |
82.96 |
65.67 |
80.87 |
75.91 |
| SI* | 82.14 | 45.91 | 38.76 | 86.05 | 56.57 |
*SI are patients in whom a preoperative imaging technique, including breast ultrasound (US), contrast-enhanced magnetic resonance imaging (MRI), and positron emission tomography (PET)-CT scanning, revealed suspected axillary LN metastasis. PPV, positive predictive value; NPV, negative predictive value.