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Colonic distention according to patient position in 146 subjects.
A, Bar graph shows mean colonic gas volume, which was greatest in the decubitus position (1901±627 ml), intermediate in the supine position (1,617±567 ml), and lowest in the prone position (1441±505 ml) (p< 0.0001).
B, Bar graph shows the mean overall segmental distention scores by position, pooled between the two readers, which match well with the automated volumetric results (p<0.001).
