Retrograde air insufflation was employed to distend the colon and the ileum in 18 patients and five volunteers for magnetic resonance examination. Good and moderate marking of the ileum was obtained in 18 cases. The colon was nearly completely distended in every case. Intraluminal tumor, mural thickening, and extraluminal lesion were outlined by intraluminal air and surrounding air-distended bowel. This study shows that retrograde air insufflation is a useful method to mark the colon and most parts of the ileum.
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Chou, C., Liu, G., Chen, L. et al. Retrograde air insufflation in MRI: A technical note. Abdom Imaging 18, 211–214 (1993). https://doi.org/10.1007/BF00198103
- MR studies
- Gastrointestinal contrast agent