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Cronin, CG,Lohan, DG,Mhuircheartaigh, JN,McKenna, D,Alhajeri, N,Roche, C,Murphy, JM
2008
August
American Journal Of Roentgenology
MRI small-bowel follow-through: Prone versus supine patient positioning for best small-bowel distention and lesion detection
Published
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Optional Fields
Crohn's disease MRI small-bowel follow-through patient position ORAL CONTRAST AGENTS POLYETHYLENE-GLYCOL SOLUTION CROHNS-DISEASE ENTEROCLYSIS OPTIMIZATION WATER ENTEROGRAPHY DIAGNOSIS CHILDREN
191
502
506
OBJECTIVE. The purpose of this study was to assess whether prone or supine imaging provides superior small-bowel loop distention during MRI small-bowel follow-through examinations and whether either position is better with regard to lesion detection and evaluation.SUBJECTS AND METHODS. Forty consecutively enrolled clinically referred patients with known or suspected small-bowel abnormalities prospectively underwent 62 MRI small-bowel follow-through examinations in both the prone and the supine positions. Images were blindly and independently reviewed by two observers. Each small-bowel segment was assessed with a 3-point scoring system, and differences in bowel distention in the prone and supine positions were evaluated with a paired Wilcoxon's test. Differences between rates of lesion detection and characterization (e. g., ulceration, stricturing) were analyzed with a paired Student's t test. Interobserver agreement was estimated with the kappa coefficient.RESULTS. In both normal and diseased small bowel, the prone position had statistically significantly higher distention scores than did the supine position (p 0.05).CONCLUSION. Although use of the prone position results in superior small-bowel distention during MRI small-bowel follow-through, both the prone and supine positions are equal in terms of lesion detection and feature visualization.
DOI 10.2214/AJR.07.2338
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