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Statistical analysis. Diagnostic capabilities of the two image sets (the conventional MR image set and the combined set of conventional and DW MR images) for the diagnosis of complete response compared with the reference standard.
| T2 | T2 + DWI | |
|---|---|---|
| Accuracy% | 87.9 | 97 |
| Sensitivity% | 20 (15.1–55.1)a | 80 (44.9–151.1)a |
| Specificity% | 100 | 100 |
| PPV% | 100 | 100 |
| NPV% | 87.5 | 96.6 |
PPV: positive predictive value; NPV: negative predictive value; DWI: diffusion weighted imaging.
Confidence interval limits.
