Table 1 Definition of the computed tomography (CT) scoring system
Score | Free peritoneum | Peritoneum covering organs or tissues |
|---|---|---|
0 | No abnormal sign | No lines displayed |
1 (mild) | Slightly and homogeneously increased fat density appearing as S-GGO | Slight thickened line |
2 (moderate) | Heterogeneously increased density with patchy or intensive S-GGO | Obviously thickened line with enhancement |
3 (severe) | Heterogeneously and obviously increased density with intensive S-GGO, multiple strands, curls sign, or blurred-margined small nodules | Obviously thickened line with enhancement and tiny nodules or a small amount of ascites |