胰腺损伤的MRI诊断

MR Imaging of Blunt Pancreatic Injury

目的:总结胰腺损伤的MR征象,评价MRI在胰腺损伤诊断中的作用。材料和方法:回顾性分析5例急性闭合性腹部外伤伴胰腺损伤患者的MRI表现。其中男性3例,女性2例,年龄14-52岁,平均33.60±15.34岁。MRI检查用GE 1.5T超导全身磁共振机,相控阵列线圈,包括T_1WI、T_2WI及MRCP等序列。结果:胰腺损伤的MRI表现有:①胰腺肿大(2例);②胰腺断裂(4例);③主胰管断裂(4例);④胰腺内出血(1例);⑤胰周改变:5例均有胰周被膜和肾旁前筋膜增厚,胰周、肾旁间隙广泛积液;⑥假性囊肿形成(2例)。结论:胰腺损伤具有较特征的MR表现,结合临床,可以明确诊断。

Purpose： To summarize the MR features and to evaluate MRI in the diagnosis of blunt pancreatic trauma. Materials and Methods： There were five patients with blunt pancreatic trauma confirmed by surgery and with abdominal MR imaging in this study. They were 3 males and 2 females with an average age of 33.60 ± 15.34 ranging from 14 to 52 years old. The MR imaging sequences included abdominal coronal and axial single shot fast spin echo （SSFSE） T2 - weighted, axial fat - suppressed fast spoiled gradient - echo T1 - weighted （GRE TlW） images, axial fat - suppressed fast - recovery fast spin- echo T2W（FRFSE T2W）, double - echo fast spoiled GRE chemical shift MR imaging and MR cholangiopancreatography（MRCP） on 1.5T MR scanner using a synergy body phased - array coil. Result： The features of pancreatic injury on MR images included： ①pancreas enlargement in 2 patients, ② pancreatic transection in 4 patients, ③the main pancreatic duct transection in 4 patients, ④pancreatic hematoma in 1 patient, ⑤peripancreatic abnormalities in 5 patients, thickening of pancreatic and renal facial, fluid collected in peri - pancreas and peri - renal space, ⑥ peripancreatic pseudocyst in 2 patients. Conclusion： MR imaging has the ability to depict blunt pancreatic injury.