| 张仙海,高明勇,周新韩,卢瑞梁,赵海.MRI诊断妇科盆腔恶性肿瘤放疗后的放射性肠炎[J].中国医学影像技术,2012,28(9):1695~1698 |
| MRI诊断妇科盆腔恶性肿瘤放疗后的放射性肠炎 |
| MRI diagnosis of radiation enteritis in patients with gynecological pelvic malignancies after radiotherapy |
| 投稿时间：2012-02-28 修订日期：2012-04-11 |
| DOI： |
| 中文关键词: 盆腔肿瘤 磁共振成像 放射性肠炎 |
| 英文关键词:Pelvic neoplasms Magnetic resonance imaging Radiation enteritis |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨放射治疗妇科盆腔恶性肿瘤所致放射性肠炎(RE)的MRI特点。方法 回顾性分析28例妇科盆腔恶性肿瘤放疗所致RE患者的临床和MRI资料。结果 RE以直肠发病多见,28例RE中,直肠25例(25/28,89.29%),乙状结肠2例(2/28,7.14%),直肠和乙状结肠1例(1/28,3.57%)。病变肠壁在T2WI和DWI上均表现为"同心圆"分层状高信号,T1WI呈等信号,增强后呈明显"同心圆"分层状环形强化;23例(23/28,82.14%)病变肠壁较均匀环形肿胀增厚,内壁较光滑,未见明确壁结节及软组织肿块,3例(3/28,10.71%)病变肠壁不均匀环形肿胀增厚,局部内缘不规整,呈隆起状,2例(2/28,7.14%)伴发直肠-阴道瘘。结论 放射治疗妇科盆腔恶性肿瘤所致RE的MRI表现具有一定特征性,在RE的诊断中有重要价值。 |
| 英文摘要: |
| Objective To explore MRI characteristics of radiation enteritis (RE) in patients with gynecological pelvic malignancies after radiotherapy. Methods The clinical and MRI data of 28 RE patients with gynecological pelvic malignancies after radiotherapy were retrospectively analyzed. Results In 28 patients, rectal injury, sigmoid colon injury and both injury was observed in 25 (89.29%), 2 (7.14%) and 1 (3.57%) patient, respectively. Lesions of the bowel wall showed as "concentric circles" layering hyper-intense on T2WI and DWI, iso-intense on T1WI, and displayed more obvious "concentric circles" layered annular after enhancement. Abnormal bowel wall was smooth, and relatively thicker than uniform annular swelling, in 23 patients (23/28, 82.14%), without clear wall nodule nor tissue mass. Lesions of the bowel wall showed inhomogeneous and annular swelling and thickening, with irregular local edge in shape of multinodular ridge in 3 patients (3/28, 10.71%). Rectal-vaginal fistula was found in 2 patients (2/28, 7.14%). Conclusion MRI findings of RE are characteristics in patients with gynecological pelvic malignancies after radiotherapy. MRI plays an important role in the diagnosis of RE. |
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