磁共振动态增强和脂肪抑制技术在胰腺癌诊断中的价值  

The Value of MR Dynamic Contrast FMPSPGR and SE T_1WI+Fat Suppress Techniques in the Diagnosis of Pancreatic Carcinoma

作　　者：曾蒙苏[1] 严福华[1] 周康荣[1] 陈祖望[1] 沈继章[1] 陈财忠[1] 施惠斌[1] 

机构地区：[1]上海医科大学中山医院放射科,200032

出　　处：《临床放射学杂志》2000年第11期703-706,共4页Journal of Clinical Radiology

摘　　要：目的　了解磁共振动态增强和脂肪抑制技术在胰腺癌诊断中的价值。材料与方法　 18例经手术病理证实的胰腺癌患者进行了磁共振检查 ,采用的磁共振序列分别为 :SET1WI、FSET2 WI、脂肪抑制技术SET1WI和动态增强FMPSPGR等。结果　 18例胰腺癌肿瘤病灶 ,在SET1WI上呈低信号者 10例 ,等信号者 6例 ,高信号者 2例 ;FSET2 WI上高信号者 8例 ,等信号者 6例 ,低信号者 4例 ;脂肪抑制技术SET1WI上所有肿瘤均呈低信号改变 ,同时在动态增强FMPSPGR动脉期扫描 ,所有肿瘤均表现为强化不明显或不强化而呈低信号。结论　脂肪抑制技术SET1WI和动态增强FMPSPGR能够明显提高胰腺癌诊断的敏感性和特异性。Objective To evaluate MR dynamic contrast FMPSPGR and T 1WI+Fat suppress techniques in the diagnosis of pancreatic carcinoma.Materials and Methods MRI was performed in 18 cases with surgico-pathologically proved pancreatic carcinoma. SE T 1WI, FSE T 2WI, SE T 1WI+Fat suppress and dynamic contrast FMPSPGR sequences were used in MR scanning.Results On SE T 1WI the lesions showed hypo- intensity in 10, iso-intensity in 6 and hyper-intensity in 2 cases, while on FSE T 2WI the lesions displayed hypo-intensity in 4, iso-intensity in 6 and hyper-intensity in 8 cases. In contrast, on SE T 1WI+Fat suppress all the tumors appeared hypo-intensity. With dynamic contrast FMPSPGR sequence all lesions showed hypo-intensity without or with only slight enhancement during arterial phase scanning.Conclusion SE T 1WI+Fat suppress and dynamic contrast FMPSPGR sequences can surely improve both the sensitivity and specificity of the diagnosis of pancreatic carcinoma.

关 键 词：磁共振成像 胰腺癌 诊断 磁共振动态增强 

分 类 号：R735.904[医药卫生—肿瘤] R730.44[医药卫生—临床医学]