Table 5.

Fluid scores from the QA software by colonic segment. Numbers are percent of colonic wall obscured by fluid in each colonic segment. In the prone scans, the transverse colon was most fluid-filled with statistical significance compared to the descending colon (p < 0.05). In the supine scans, the descending colon was most fluid-filled with statistical significance compared to the rectum, sigmoid, and transverse colon (p < 0.01).

Segment	Prone (n=105)	Supine (n=105)
Rectum	17.1 ± 17.1	15.6 ± 18.3
Sigmoid	15.4 ± 13.9†	12.2 ± 14.0†
Descending	13.4 ± 12.6*	21.6 ± 19.2*
Transverse	17.7 ± 13.3**	14.8 ± 12.7**
Ascending	15.5 ± 13.8‡	18.8 ± 13.3‡

^*p < .001

^{†, **, ‡}p < .05 by paired t-test.