磁共振对结肠肿瘤的临床应用价值初探

目的评价磁共振多种扫描序列联合应用对结肠肿瘤的诊断价值。方法分析18例经临床病理证实的结肠癌(14例)、结肠息肉(4例),所有病例检查前一晚禁食、做肠道准备,检查前应用低张药物,2000mL生理盐水灌肠;行MR肠道水成像(MRC)及背景抑制弥散加权成像、同时行快速梯度回波脂肪抑制T2加权成像(SPAIR)、梯度回波同相位(IP)、反相位(OP)成像、静脉注射钆剂增强扫描。结果 MRC便于发现腔内病灶;背景抑制弥散加权成像利于观察肿瘤整体形状及瘤体水分子弥散受限程度、及腹腔淋巴结;脂肪抑制及正、反相位成像利于观察肿块细节、肠腔狭窄程度及与周围组织的关系,便于肿瘤分期;增强扫描可观察肿瘤对肠管周围结构的侵犯、肿瘤血供情况,了解肿瘤与周围血管的关系。结论肠道水成像、背景抑制弥散加权成像及常规扫描结合对结肠肿瘤的诊断具有较高的临床应用价值,为临床提供重要诊断信息。

Preliminary Clinical Application Value of Magnetic Resonance Imaging for Colon Tumor

Objective To assess the diagnosis value of united application of magnetic resonance multiple scanning sequence to colon tumor.Methods Analyze 18 cases of colon cancer(14 cases) and colon polypus(4cases) proved by clinical pathology,food should be prohibited,intestinal canal preparation should be done one night before all the pathological examinations,the hypertensive drugs should be used before examination and 2000mL physiological saline clysis should be done;Magnetic Resonance Canal water imaging(MRC) and ...