正常胰腺计算机断层扫描灌注特征分析

Computed Tomography Perfusion Characterization of the Normal Pancreas

目的:探讨不同性别正常胰腺计算机断层扫描血流灌注参数及特征,为胰腺疾病的影像灌注诊断提供对比依据。方法:选取西南医科大学附属中医医院2018年1月—2021年9月接受双源CT上腹部轴位CT灌注扫描且胰腺无病变的26例患者作为研究对象,使用VPCT Body软件分别测量胰腺头、体、尾部的CT灌注参数,如血流量(BF)、血容量(BV)等,并对不同部位灌注值进行统计学分析。结果:正常胰腺头部、体部、尾部实质BF值及BV值均呈现较高灌注水平,差异无统计学意义(P>0.05)。正常男性胰腺头部的BF值、BV值低于正常女性,胰腺体部的BF值、BV值低于正常女性,胰腺尾部的BF值、BV值低于正常女性,差异有统计学意义(t=2.462、2.990、2.421;t=3.560、3.967,3.489,P<0.05)。结论:胰腺头、体、尾部之间灌注参数BF值、BV值具有一致性,不同性别之间血流灌注存在一定差异。

Objective:To investigate the parameters and characteristics of normal pancreatic computed tomography perfusion in different genders,and to provide a comparative basis for imaging perfusion diagnosis of pancreatic diseases.Methods:26 patients who underwent axial CT perfusion scanning of the upper abdomen on dual-source CT and had no lesions in the pancreas from January 2018 to September 2021 in the hospital were selected for the study.CT perfusion parameters such as blood flow(BF)and blood volume(BV)were measured in the head,body,and tail of the pancreas separately using VPCT Body software,and the perfu-sion values of different sites were statistically analyzed.Results:Normal pancreatic head,body,and tail parenchyma BF values and BV values showed higher perfusion,and the difference was not statistically significant(P>0.05).The BF and BV values of the head of the pancreas in normal men were lower than those of normal women,the body of the pancreas was lower than that of nor-mal women,and the tail of the pancreas was lower than that of normal women,and the difference was statistically significant(t=2.462,2.990,2.421;t=3.560,3.967,3.489,P<0.05).Conclusion:There was a consistency in the perfusion parameters BF and BV values between the head,body and tail of the pancreas,with some differences in blood perfusion between genders.