digestive disorders
Computed Tomography and Magnetic Resonance Imaging of the Digestive Tract
CT Enterography and MR Enterography
Regular CT does not show the lining of the intestines well. A variation of the test, called CT enterography, allows doctors to clearly see the lining of the small intestine and look for tumors or narrowing of the intestines resulting from inflammation (strictures). For this test, people drink a large volume (about 1.6 quarts [1.5 liters]) of a liquid contrast agent such as barium. The contrast agent distends the small intestine so that doctors can see it better. Magnetic resonance (MR) enterography is similar to CT enterography in that people drink a contrast agent before pictures are taken of their small intestine. It helps doctors see inflammation and other problems. This test is typically reserved for younger people, especially those with inflammatory bowel disease, so they are not exposed to radiation. 