Department of Radiology, Atatürk Training and Research Hospital, Bilkent, Ankara, Turkey.
Cancer Imaging. 2011 Nov 30;11(1):189-94. doi: 10.1102/1470-7330.2011.0026.
The diagnosis of chronic radiation enteritis (CRE) is considerably challenging both for clinicians and radiologists. The aim of this study was to evaluate the role of magnetic resonance enterography (MRE) in the diagnosis of CRE. To the best of our knowledge, there are no reports on the role of MRE in the diagnosis of CRE specifically. In this report, we present MRE findings of 4 patients with CRE. The most important factors in CRE diagnosis are the clinical findings and medical history, but focal abnormal bowel loop in the region of a known radiation field is the most important information. This abnormal loop is generally located in the distal ileum as present in our patients. Other associated findings helpful for the diagnosis are small bowel thickening, contrast material enhancement in a long segment, mesenteric stranding and luminal narrowing. MRE can be sufficient and useful in the diagnosis of CRE and for treatment planning, especially in patients with significant comorbidities who have had radiotherapy in the past. Adding MRE into the diagnostic algorithm can be helpful in post-radiotherapy patients with acute/subacute gastrointestinal symptoms.
慢性放射性肠炎（CRE）的诊断对临床医生和放射科医生来说都是极具挑战性的。本研究旨在评估磁共振肠造影（MRE）在 CRE 诊断中的作用。据我们所知，目前尚无关于 MRE 在 CRE 诊断中作用的专门报道。在本报告中，我们介绍了 4 例 CRE 患者的 MRE 结果。在 CRE 诊断中最重要的因素是临床发现和病史，但已知放射野区域的局灶性异常肠袢是最重要的信息。正如我们的患者所见，这种异常肠袢通常位于回肠末端。其他有助于诊断的相关发现包括小肠增厚、长段对比剂增强、肠系膜绞索和管腔狭窄。MRE 可用于诊断 CRE 和治疗计划，特别是在过去接受过放射治疗且合并症较多的患者中，这是一种充分且有用的方法。在接受过放射治疗且出现急性/亚急性胃肠道症状的患者中，将 MRE 纳入诊断算法中可能会有所帮助。
