How has MDCT changed small bowel evaluation

How has MDCT changed small bowel evaluation? 

  • MDCT with coronal and sagittal MPRs can image the entire abdomen in a single breath-hold acquisition, facilitating small bowel evaluation.
  • Ideal small bowel imaging requires intraluminal and intravenous (IV) contrast and bowel distention to best evaluate the mucosa, bowel wall, and surrounding structures, including adjacent fat.
  • Neutral contrast agent use, such as dilute 0.1% barium sulfate mixed with sorbitol (VoLumen), allows better depiction of the bowel wall and mucosa compared to positive contrast agents such as meglumine diatrizoate (Gastrografin).
  • If the intraluminal contrast is administered orally, the procedure is termed CT enterography, but if the intraluminal contrast is administered via a nasojejunal tube, the procedure is termed CT enteroclysis.
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