Abstract
Purpose
Constipation is among the most common gastrointestinal disorders, although, there is no generally accepted objective diagnostic criteria thereof. It has been proposed that colorectal dimensions assessed with Computed Tomography (CT) or Magnetic Resonance Imaging (MRI) may support the diagnosis, but normative data are lacking. The aim of this study was to describe colorectal dimensions in a sample of the general population and to investigate whether the dimensions were under influence by age and gender.
Methods
The maximum diameters and cross-sectional areas of the ascending colon, descending colon and rectum were determined from 119 CT scans of trauma patients (age groups from 15 to 70 years, 84 men and 35 women). A regression model was applied to explore the impact of age and gender on colorectal dimensions.
Results
Overall, great variations were found for all colorectal diameters and cross-sectional areas (median diameter (5% percentiles; 95% percentiles): ascending 46 (26; 63) mm; descending 29 (16; 48) mm; rectum 39 (22; 67) mm. Women had larger rectal cross-sectional areas, reflecting more rectal content, compared to men (p = 0.003). Age did not affect colorectal diameters or cross-sectional areas (all p > 0.10).
Conclusion
Great variations of colorectal dimensions were found. Larger rectal cross-sectional areas in women could likely reflect the fact that women have increased prevalence of constipation. Future studies should take gender into consideration when evaluating colorectal dimensions.
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Data availability
The data that support the findings of this study are available upon reasonable request.
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EBM: manuscript writing/editing, data analysis. SA-S: manuscript writing/editing, data collection or management. SSO: data analysis, protocol/project development. AMD: protocol/project development. KK: protocol/project development. JBF: manuscript writing/editing, data collection or management, protocol/project development.
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Mark, E.B., Al-Saadi, S., Olesen, S.S. et al. Colorectal dimensions in the general population: impact of age and gender. Surg Radiol Anat 43, 1431–1435 (2021). https://doi.org/10.1007/s00276-021-02756-z
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DOI: https://doi.org/10.1007/s00276-021-02756-z