多排螺旋CT灌注成像对胰腺疾病的诊断价值

目的探讨64排螺旋CT灌注成像对正常胰腺、胰腺癌和慢性胰腺炎的灌注参数特征及诊断价值。资料与方法对正常者、胰腺癌及慢性胰腺炎者共45例进行腹部增强CT及胰腺灌注成像,得到灌注图像和时间密度曲线(TDC),测量正常组织及病灶区的血流量(BF)、血容量(BV)、平均通过时间(MTT)、表面渗透性值(PS)、灌注起始时间(TTS)、峰值(PE)及达峰时间(TTP),比较正常胰腺各部位间、正常组与病变组的非病变区之间以及病变区之间各灌注参数差异的统计学意义。结果正常组、胰腺癌组和慢性胰腺炎组的病变区,除TTS外各参数的差异均有统计学显著性(P<0.05)。正常胰腺头、体、尾间灌注参数的差异无统计学意义(P>0.05)。三组的非病变区各参数的差异无统计学意义。结论 64排螺旋CT胰腺灌注对胰腺癌及慢性胰腺炎的鉴别诊断有重要意义,能为临床诊断及治疗提供线索。

Value of Multislice Helical CT Perfusion in Diagnosis of Pancreatic Diseases

Objective To discuss the parameter feature of 64-slice helical CT perfusion in normal and pathological pancreas.Materials and Methods The 64-slice helical CT pancreas perfusion and conventional abdominal enhancement series were performed for pathologically proved 34 patients with pancreatic carcinoma and chronic pancreatitis and 11 patients without pancreas disorder served as controls.The acquired data of perfusion was reconstructed to calculate parameters as TDC,BF,BV,MTT,PS,TTS,PE,TTP in normal and lesion...