Cronin C G, Lohan D G, Browne A M, Alhajeri A N, Roche C, Murphy J M
Department of Radiology, University College Hospital, Galway, Ireland.
Clin Radiol. 2009 Oct;64(10):1026-34. doi: 10.1016/j.crad.2009.05.007.
Magnetic reasonance (MR) enterography enables high contrast resolution depiction of the location and cause of bowel obstruction through a combination of predictable luminal distension and multiplanar imaging capabilities. Furthermore, because the patient is not exposed to ionizing radiation, sequential "dynamic" MR imaging can be performed repeatedly over time further facilitating depiction of the site and/or the cause of obstruction. With increasing availability of MR imaging and standardization of the oral contrast medium regimens, it is likely that this technique will assume an ever-increasing role in the evaluation of small bowel dilation in the coming years. We illustrate the utility of MR enterography in the evaluation of small bowel dilation, whether it be mechanical, functional (e.g., ileus), or related to infiltrative mural disease.
磁共振（MR）小肠造影通过可预测的肠腔扩张和多平面成像能力的结合，能够以高对比度分辨率描绘肠梗阻的位置和病因。此外，由于患者无需接受电离辐射，因此可以随时间反复进行连续的“动态”MR成像，进一步便于描绘梗阻部位和/或病因。随着MR成像的日益普及以及口服造影剂方案的标准化，在未来几年，这项技术在小肠扩张评估中可能会发挥越来越重要的作用。我们阐述了MR小肠造影在评估小肠扩张中的实用性，无论其是机械性、功能性（如肠梗阻）还是与浸润性肠壁疾病相关。
