Table 2 Number of episodes with each MRI feature of cyst infection, and the sensitivity and specificity of each MRI feature
Cases (n=88) | Controls (n=147) | Sensitivity | Specificity | |
|---|---|---|---|---|
High SI on DWI (%) | 86.4 | 66.7 | 86.4 | 33.3 |
Fluid-fluid level (%) | 50.0 | 12.9 | 50.0 | 87.1 |
Wall thickening (%) | 48.3 | 10.9 | 48.3 | 89.1 |
Fluid-fluid level or wall thickening (%) | 84.1 | 19.7 | 84.1 | 80.3 |
Gas (%) | 1.1 | 0 | 1.1 | 100 |
At least one of these four features (%) | 100 | 68.0 | 100 | 32.0 |
High SI on DWI with diameter > 5cm (%) | 69.3 | 15.6 | 69.3 | 84.4 |
Fluid-fluid level or wall thickening with diameter > 5cm (%) | 72.7 | 8.8 | 72.7 | 91.2 |
At least one of these four features with diameter > 5cm (%) | 83.0 | 18.4 | 83.0 | 81.6 |