正常胰腺64排螺旋CT灌注成像研究

目的:利用MSCT灌注成像技术,探讨正常胰腺64排螺旋CT灌注参数特征。方法:对非胰腺疾病60例患者行胰腺64排MSCT灌注扫描及常规双期增强扫描,计算出BF,PEI,TTP,BV感兴趣区的灌注参数,分析正常胰腺的灌注参数及特点。结果:正常胰腺的BF值随着年龄的增大呈明显下降趋势,且灌注参数BF值与年龄呈负相关。TTP值随着年龄的增加呈上升趋势,不同年龄组之间PEI、BV值的差异无统计学意义(P>0.05);不同年龄段正常胰腺胰头部和胰体尾部BF、PEI、TTP、BV值差异无统计学意义(P>0.05)。结论:胰腺64排螺旋CT灌注成像方法简单可行,能反映胰腺组织的血流动力学变化。

Study on 64-Slice CT perfusion imaging in normal pancreas

Objective: Using multi-slice CT(MSCT)perfusion techology to evaluate the feature of 64-Slice CT perfusion imaging(CTPI)in normal pancreas.Methods:64-Slice CT perfusion imaging was performed on 60 patients without pancreatic disease.The perfusion parameters were calculated and analyzed,including Perfusion parameters blood flow(BF),blood volume(BV),peak enhancement imaging(PEI),and time to peak(TTP).Results:The perfusion parameter BF of the normal pancreas reduced with age while TTP increased with age.MTT and BV had no obvious trend with age;There was no difference between the pancreatic head and body-tail.Conclusion:64-Slice CT perfusion imaging of the pancreas continues to be a feasible and effective method of reflecting the hemodynamic changes of pancreatic tissue.