Summary of the diagnostic values of DWI and/or DPI sequences according to residual cholesteatoma size*
| DWI or DPI | DWI and DPI | |||||
|---|---|---|---|---|---|---|
| Total Series | Tumor >3 mm | Tumor >5 mm | Total Series | Tumor >3 mm | Tumor >5 mm | |
| Se | 90.00 | 100.00 | 100.00 | 60.00 | 75.00 | 100.00 |
| Spe | 54.55 | 75.00 | 80.00 | 72.73 | 84.21 | 88.00 |
| PPV | 78.26 | 68.75 | 54.55 | 80.00 | 75.00 | 66.67 |
| NPV | 75.00 | 100.00 | 100.00 | 50.00 | 84.21 | 100.00 |
Note:—Se indicates sensitivity; Spe, specificity; PPV, positive predictive value; NPV, negative predictive value.
* DWI or DPI diagnosis of cholesteatoma with any of these 2 examinations is sufficient to suggest a residual lesion. DWI and DPI diagnosis of cholesteatoma with both examinations is necessary to suggest a residual lesion.