Computed tomography enterography

Computed Tomography Enterography (CT Enterography) is a specialized radiological examination that uses Computed Tomography (CT) scanning to obtain detailed images of the intestine. This diagnostic tool is particularly useful for identifying and evaluating diseases of the small intestine, a region that is difficult to visualize with other imaging modalities. CT Enterography is non-invasive and provides high-resolution images, making it an invaluable procedure in the diagnosis and management of various intestinal disorders.

Indications

CT Enterography is primarily indicated for the evaluation of Inflammatory Bowel Disease (IBD) such as Crohn's Disease and Ulcerative Colitis, detection of tumors in the small intestine, identification of abscesses, fistulas, and obstructions, and assessment of the extent of disease in the small bowel. It is also used to monitor the response to therapy in patients with known intestinal disorders.

Procedure

The procedure involves the oral administration of a neutral or slightly negative oral contrast agent, which helps to distend the intestine and enhances the visualization of the intestinal wall and lumen. Patients may also receive an intravenous contrast agent to highlight blood vessels and to enhance the detection of inflammation, tumors, and other abnormalities. The patient is then scanned using a CT scanner, which takes multiple cross-sectional images of the abdomen. These images are then reconstructed to create detailed pictures of the small intestine.

Advantages

CT Enterography offers several advantages over traditional imaging techniques. It provides high-resolution images that can detect even small lesions in the small intestine. The procedure is fast, non-invasive, and has fewer complications compared to more invasive procedures like endoscopy. CT Enterography can also visualize both the bowel wall and surrounding structures, providing comprehensive information about the extent of disease.

Risks

While CT Enterography is generally safe, it does expose patients to ionizing radiation, which can be a concern, especially for young patients and those requiring multiple scans. The use of intravenous contrast agents can also lead to allergic reactions in some individuals and may pose risks to patients with impaired kidney function.

Conclusion

Computed Tomography Enterography has become an essential tool in the diagnosis and management of small bowel diseases. Its ability to provide detailed images of the intestine, combined with its non-invasive nature, makes it a preferred choice for evaluating a wide range of intestinal disorders. However, the risks associated with radiation exposure and contrast agents must be carefully considered.