CT and MR enterography in evaluating small bowel diseases: when to use which modality?

摘要: MR and CT techniques optimized for small bowel imaging are playing an increasing role in the evaluation of disorders. Several studies have shown advantages these over traditional barium fluoroscopic examinations due to improvements spatial temporal resolution combined with improved distending agents. The preference vs. has been geographical based on expertise public policy. With awareness radiation exposure, there a more global interest implementing that either reduce or eliminate exposure. This is especially important patients chronic diseases such as inflammatory disease who may require multiple lifetime sequential time points assessment gastrointestinal motility. MRI many properties make it well suited bowel: lack ionizing radiation, tissue contrast can be obtained by using variety pulse sequences, ability perform real functional imaging. Moreover, modalities allow visualization entire bowel, without overlapping loops, detection both intra- extraluminal abnormalities.The findings, enhancement information, help accurate diagnosis consequently characterize diseases.