Table 4 Measures of sensitivity, specificity, positive predictive value, negative predictive value, cutoff values (CV) and precision using MRS coefficients in peritumoral edema for discrimination of high-grade gliomas and metastases using ROC curve analysis
Parameter | CV | Sensitivity% | Specificity% | PPV% | NPV% | AUC | Precision |
|---|---|---|---|---|---|---|---|
Cho/Cr | 1.18 | 89.79% | 93.33% | 95.65% | 84,.4% | 92.2% | 91.13% |
Cho/NAA | 1.115 | 93.87% | 93.33% | 95.83% | 95.83% | 95.8% | 93.67% |
NAA/Cr | 1.155 | 67.34% | 93.33% | 54.09% | 11.11% | 16.3% | 44.30% |