急性胰腺炎的MRI特征与评价

目的探讨急性胰腺炎的MRI特征及其诊断价值。方法对233例采用呼吸门控磁共振序列进行扫描的急性胰腺炎MRI资料进行回顾性分析。结果所有病例经一次扫描获得图像能够满足临床诊断要求。190例诊断为急性水肿性胰腺炎,表现为胰腺的局部或弥漫性肿大,花边样轮廓消失,T1WI胰腺信号减低,T2WI呈稍高或高信号。43例诊断为急性出血坏死性胰腺炎,T1WI可呈斑片状高信号,T2WI呈混杂信号,可出现低信号环,坏死部分增强不强化。腹腔渗液T1WI为低信号,T2WI为高信号。结论 MRI对于急性胰腺炎的诊断具有重要价值,可为临床治疗提供重要依据。

Evaluation of MRI features in acute pancreatitis

Objective To analyze the MRI features of acute pancreatitis.Methods Image data of 233 patients with acute pancreatitis were analyzed retrospectively.Results Image data of all the patients were acquired by only one scanning,which can satisfy the requirement of clinical diagnosis.Typical findings of acute edematous pancreatitis （n=190） include local or whole swelling and lace oattern outline disappearing.The signal intensity of pancreas on T1WI was low,while was high on T2WI.Acute hemorrhagic necrotic pancreatitis （n=43） was showed heterogeneous higher signal intensity on T1WI.The low signal circle can be found on T2WI.The necrotic region in the pancreas was not enhanced.Celiac effusion signal intensity of pancreas on T1WI was low,while was high on T2WI.Conclusion MRI is valuable in the diagnosis of acute pancreatitis,which can provide important information for clinical treatment.