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Abdominal Helical CT: Milk as a Low-Attenuation Oral Contrast Agent¹

Susan E. Thompson, MD ², Vassilios Raptopoulos, MD, Robert L. Sheiman, MD, Michelle M. J. McNicholas, MD and Panos Prassopoulos, MD ³

¹ From the Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Ave, Boston, MA 02215. From the 1997 RSNA scientific assembly. Received June 5, 1998; revision requested July 30; revision received October 8; accepted November 19.Address reprint requests to V.R.

 
One hundred ten consecutive patients were given either whole (4%) milk, 2% milk, water, barium suspension, or no oral contrast agent before abdominal computed tomography (CT). Results with whole milk were superior to those with all other agents for gastrointestinal distention, mural visualization, and pancreas-duodenum discrimination. In bowel loop discrimination, results with 4% milk were equal to those with barium but superior to those with all other agents. Whole (4%) milk is an effective low-attenuation oral contrast agent.

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