Computed tomography attenuation values of ascites are helpful to predict perforation site

Figure 1 Representative construction of a 3D image of ascites by OsiriX. A: Consecutive computed tomography slices were used for measurement. Intra-abdominal ascites are outlined in each slice; B: 3D image of ascites constructed with OsiriX software.

Figure 2 Representative measurements of computed tomography attenuation values by the 2D method. The CT attenuation values of three arbitrary points on the ascites (A, B and C in the CT slice) were measured, and the mean value was calculated. CT: Computed tomography.

Figure 3 Evaluation of the reproducibility of the 2D method. A: Correlation between the CT attenuation values calculated by the volume rendering and 2D methods; B: Correlation between the CT attenuation values calculated by two investigators. ICC: Interclass correlation coefficient; CT: Computed tomography.