胰腺MRI:技术及诊断研究

目的 :探讨MR不同序列在胰腺病变诊断中的应用价值。方法 :84例胰腺检查包括 5 0例正常胰腺及 3 4例临床怀疑有病变的胰腺 ,其中包括 15例胰腺癌 ,2例胰岛细胞瘤 ,1例粘液性囊腺瘤 ,4例胰周肿瘤 ,12例胰腺炎。MR扫描序列包括常规SET1WI ;FSET2 WI ;增强前、后的脂肪抑制T1WI和GRE。结果 :3 4例异常胰腺中的 2 7例 ,增强前、后T1WI脂肪抑制像提供了最好的诊断信息 ,其次为增强后立即扫描的GRE像。未增强的GRE像极好地显示了急性胰腺炎的特征 ,SET2 WI像对胰岛细胞瘤及胰腺癌的肝转移显示较为敏感。结论 :增强前、后T1WI脂肪抑制序列及动态增强的GER序列 ,应为胰腺MRI的标准序列。

MRI of the pancreas:technology and diagnosis

s Objective:To evaluate the ability of various MRI sequences in detection of the pancreatic diseases.Methods:84 subjects included 50 cases of normal pancrease and 34 patients with suspected pancreatic disease (22 patients with pancreatic neoplasm and 12 pancreatitis).The MR protocol included conventional SE T 1WI,FSE T 2WI, pre- and post-contrast T 1-weighted fat-suppressed and GRE imaging.Results:The best diagnostic information was provided by T 1-weighted fat-suppressed imaging before and after gadolinium enhancement on 27 of the thirty-four cases with abnormal pancreas,followed by immediately postcontrast GRE imaging.Precontrast GRE imaging best showed the features of acute pancreatitis.FSE T 2WI obviously exhibited islet cell tumor and metastases of liver from pancreatic adenocarcinoma.Conclusions:The standard MR protocol should include T 1-weighted fat-suppressed image and dynamic GRE imaging.