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Normal small bowel wall characteristics on MR enterography.
Carmel G Cronin1, Eithne Delappe, Derek G Lohan
1Department of Radiology, University College Hospital, Galway, Ireland. carmelcronin2000@hotmail.com
European Journal of Radiology
|June 9, 2009
Summary
This study establishes normal small bowel measurements using MR enterography, providing essential reference ranges for diagnosing conditions. These detailed parameters aid radiologists in accurately assessing small bowel normality.
Area of Science:
- Radiology
- Gastroenterology
- Medical Imaging
Background:
- Accurate assessment of small bowel pathology relies on understanding normal anatomical parameters.
- MR enterography is a key imaging modality for evaluating the small bowel.
Purpose of the Study:
- To determine normal small bowel parameters including diameter, wall thickness, and fold characteristics.
- To establish reference ranges for different small bowel segments on MR enterography.
Main Methods:
- Retrospective analysis of 65 normal MR enterography examinations.
- Evaluation of small bowel diameter, wall thickness, fold number, fold thickness, and interfold distance per segment.
Main Results:
- Mean duodenal diameter was 24.8mm, decreasing to 18.7mm in the terminal ileum.
- Bowel wall thickness was consistently around 1.5mm throughout the small bowel.
- Number of folds per 2.5 cm ranged from 4.6 in the jejunum to 1.5 in the terminal ileum.
Conclusions:
- This study provides crucial normative data for small bowel parameters on MR enterography.
- Knowledge of these parameters is essential for accurate interpretation of MR enterography studies.
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