Table 2. Computed tomography findings associated with acalculous cholecystitis.
| Findings | Specificity for
necrotic GB, percentage |
Sensitivity for
necrotic GB, percentage |
|---|---|---|
| Gas within the GB | 99.2 | 11.1 |
| Lack of GB wall enhancement | 94.9 | 37.5 |
| Subserosal edema | 92.4 | 22.2 |
| Thickness and enhancement
of the GB wall |
NA | 25 |
| High-density bile | NA | 13 |
| Increased perpendicular
diameters of the GB |
NA | 78 |
| Peritoneal fat edema | NA | 89 |
| Diffuse tissue edema | NA | 89 |
| Ascites | NA | 100 |
GB, gallbladder; NA, not applicable.