Table 2 Accuracy of open biopsy compared to core needle biopsy (CNB) measured separately for bone and soft tissue tumours based on the final diagnosis
Percutaneous CNB | Open biopsy | |||
|---|---|---|---|---|
Soft tissue sarcoma (n = 13) | Bone sarcoma (n = 33) | Soft tissue sarcoma (n = 16) | Bone sarcoma (n = 15) | |
Sensitivity | 81.8% | 100% | 100% | 95.5% |
Specificity | 100% | 100% | 100% | 100% |
Positive predictive value | 100% | 100% | 100% | 100% |
Negative predictive value | 50% | 100% | 100% | 91,7% |
Diagnostic accuracy | 84.6% | 100% | 100% | 100% |