Comparison of changes in rectal area and volume during MR evacuation proctography in healthy and constipated adults.
Susrutha Puthanmadhom NarayananMayank SharmaJoel G FletcherRonald A KarwoskiDavid R HolmesAdil E BharuchaPublished in: Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society (2019)
Measured with MR proctography, the rectal area is reasonably accurate for quantifying rectal emptying and equivalent to rectal volume for distinguishing between normal and abnormal BET. When evacuation is reduced, the change in rectal area may underestimate the change in rectal volume.