Abstract
IntroductionPelvic floor dysfunction is one of the major causes of primary chronic constipation. Our study aims to assess utility of defecography using magnetic resonance imaging (MRI) in assessing pelvic floor dysfunction in these patients. MethodsMR defecography studies of 50 patients with chronic constipation done on 1.5 T/3 T MRI machines were analyzed retrospectively. Midline sagittal images were evaluated during rest, strain, and defecation phases. ResultsOf 50 patients, 62% had only compartment III involved, 8% had compartments II and III involved, 8% had compartments I and III involved, and 16% had all 3 compartments involved, the remaining 6% had no compartment involvement. Of the 21 patients with rectocele, anterior rectocele was more common than posterior. Anorectal angles were compared with the three grades of anorectal descent. Both moderate and severe grades of anorectal descent had an abnormal angle. ConclusionDynamic MR defecography helps identify pelvic floor dysfunction in patients with chronic constipation and helps design surgical repair to avoid recurrence.
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