摘要
目的探讨Crohn病的CT表现特点。方法回顾性分析经病理证实的18例Crohn病的CT征象,大多数病例采用螺旋CT或多层螺旋CT扫描。结果所有病例均有节段性肠壁增厚,CT增强有7例表现为肠壁均匀增厚,缺乏层次,同时肠壁强化不明显;有11例表现为黏膜增厚和分层形成“靶征”和“双环征”,肠壁厚度多在5～10mm;有9例表现为病变段肠管周围纤维脂肪成分增多,蜂窝织炎及肠周或肠系膜血管增多增粗。有5例CT首先考虑为其他疾病,1例考虑为闭攀性肠梗阻,1例首先考虑为肠结核,2例回盲部病变怀疑为癌,1例肠穿孔形成脓肿仅诊为化脓性感染。结论CT不但能准确显示Crohn病肠壁、肠系膜及周围结构的异常,增强CT还能区分活动性与非活动性病变,有助于临床采取合理而积极的治疗方案。
Objective To evaluate the CT features and the role of CT in the diagnosis of Crohn＇s disease. Methods CT manifestations of 18 patients with pathology confirmed Crohn＇s disease were retrospectively analyzed. The majority of the patients were scanned with spiral CT or multidetector row CT. Results All 18 patients, segmental thickening of the bowel wall was detected. There were two different appearances in contrast-enhanced CT scans： （1） mural thickening without enhancement or mural stratification, and homogeneous attenuation in the thickened wall were observed in 7 patients; （2） mural thickening and stratification, resulting in the target or double-halo appearance, were detected in 11 patients, and the bowel wall thickening ranged from 5 to 10 ram. Nine patients had perienteric abnormalities including fibrofatty proliferation, phlegmon and mesenteric hypervascularity. According to the CT manifestations,5 patients were initially diagnosed as other diseases including intestinal obstruction （1 case）, tuberculosis （ 1 case） , cancer （2 cases）, and abscess （ 1 case）, respectively. Conclusion CT has the unparalleled ability to depict the abnormalities in the bowel wall, mesentery, abdominal and pelvic viscera, and contrastenhanced CT can distinguish active Crohn＇s disease from quiescent Crohn＇s disease. These features make CT particularly valuable in the management of Crohn＇s disease.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
2006年第1期88-91,共4页
Chinese Journal of Radiology
