Comparison of the positive predictive value (PPV) and accuracy of “best guess” diagnosis of malignant glioma, low grade glioma, and metastasis (n = 222)
| Tumour type | PPV | Accuracy | Likelihood ratio |
|---|---|---|---|
| Malignant glioma | 0.78 | 0.61 | 2.10 |
| Low grade | 0.36 | 0.83 | 3.84 |
| Metastasis | 0.5 | 0.82 | 4.69 |