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Evaluation of Bowel Distention and Bowel Wall Appearance by Using Neutral Oral Contrast Agent for Multi–Detector Row CT¹

¹ From the Department of Radiology, New York University School of Medicine, 550 First Ave, Rm IRM 232, New York, NY 10016 (A.J.M., J.S.B., E.M.H., J.J.C.); and E-Z-Em, Lake Success, NY (C.H., M.M.B., A.B.W.). From the 2004 RSNA Annual Meeting. Received November 22, 2004; revision requested January 18, 2005; revision received March 24; accepted April 21. Supported by a grant from E-Z-Em. Address correspondence to A.J.M. (e-mail: alec.megibow{at}nyumc.org).

View larger version (132K): [in a new window]   Figure 1a: Transverse CT scans obtained in an 81-year-old man with known pancreatic adenocarcinoma after administration of Volumen. (a) Scan reveals well-distended stomach (S). Mural features of gastric wall can be distinguished. No abnormality is seen in the uniformly thickened wall. (b) Scan reveals a mass (M) in the head of the pancreas. A metallic biliary stent is present within the common bile duct. Despite the mass, the duodenum is distended (arrow). Both walls can be visualized. In the left portion of the abdomen, neutral contrast enhancement is seen in the jejunal and proximal ileal loops. (c) Scan obtained at a slightly lower position than b demonstrates pancreatic mass. Jejunal wall and fold pattern can be easily distinguished (arrow). Note the visualized wall of the proximal ileal loops (arrowhead). (d) Scan obtained at level of the umbilicus reveals uniformly distended ileal loops (arrowhead). Terminal ileum is well distended as it enters the cecum (arrow).

View larger version (137K): [in a new window]   Figure 1b: Transverse CT scans obtained in an 81-year-old man with known pancreatic adenocarcinoma after administration of Volumen. (a) Scan reveals well-distended stomach (S). Mural features of gastric wall can be distinguished. No abnormality is seen in the uniformly thickened wall. (b) Scan reveals a mass (M) in the head of the pancreas. A metallic biliary stent is present within the common bile duct. Despite the mass, the duodenum is distended (arrow). Both walls can be visualized. In the left portion of the abdomen, neutral contrast enhancement is seen in the jejunal and proximal ileal loops. (c) Scan obtained at a slightly lower position than b demonstrates pancreatic mass. Jejunal wall and fold pattern can be easily distinguished (arrow). Note the visualized wall of the proximal ileal loops (arrowhead). (d) Scan obtained at level of the umbilicus reveals uniformly distended ileal loops (arrowhead). Terminal ileum is well distended as it enters the cecum (arrow).

View larger version (136K): [in a new window]   Figure 1c: Transverse CT scans obtained in an 81-year-old man with known pancreatic adenocarcinoma after administration of Volumen. (a) Scan reveals well-distended stomach (S). Mural features of gastric wall can be distinguished. No abnormality is seen in the uniformly thickened wall. (b) Scan reveals a mass (M) in the head of the pancreas. A metallic biliary stent is present within the common bile duct. Despite the mass, the duodenum is distended (arrow). Both walls can be visualized. In the left portion of the abdomen, neutral contrast enhancement is seen in the jejunal and proximal ileal loops. (c) Scan obtained at a slightly lower position than b demonstrates pancreatic mass. Jejunal wall and fold pattern can be easily distinguished (arrow). Note the visualized wall of the proximal ileal loops (arrowhead). (d) Scan obtained at level of the umbilicus reveals uniformly distended ileal loops (arrowhead). Terminal ileum is well distended as it enters the cecum (arrow).

View larger version (128K): [in a new window]   Figure 1d: Transverse CT scans obtained in an 81-year-old man with known pancreatic adenocarcinoma after administration of Volumen. (a) Scan reveals well-distended stomach (S). Mural features of gastric wall can be distinguished. No abnormality is seen in the uniformly thickened wall. (b) Scan reveals a mass (M) in the head of the pancreas. A metallic biliary stent is present within the common bile duct. Despite the mass, the duodenum is distended (arrow). Both walls can be visualized. In the left portion of the abdomen, neutral contrast enhancement is seen in the jejunal and proximal ileal loops. (c) Scan obtained at a slightly lower position than b demonstrates pancreatic mass. Jejunal wall and fold pattern can be easily distinguished (arrow). Note the visualized wall of the proximal ileal loops (arrowhead). (d) Scan obtained at level of the umbilicus reveals uniformly distended ileal loops (arrowhead). Terminal ileum is well distended as it enters the cecum (arrow).

View larger version (156K): [in a new window]   Figure 2: Coronal maximum intensity projection image obtained in 58-year-old woman displays both mesenteric arterial supply and venous drainage of small bowel. Note the uniform distention of the entire length of the small bowel. Folds in the duodenal sweep (arrow) can be seen. Terminal ileal region is displayed (arrowhead).