双参数3D动脉自旋标记灌注成像对大脑中动脉慢性闭塞患者血供情况评价及与脑梗死面积关系研究  

Evaluation of dual-parameter 3D-ASL on blood-supply of patients with CMCAO and the relationship between that and cerebral infarction area

作　　者：王丽坤 尹继磊[1] 刘海静 郑园园[1] Wang Likun;Yin Jilei;Liu Haijing;Zheng Yuanyuan(Department of CT Room,Handan Central Hospital,Handan 056000,China)

机构地区：[1]邯郸市中心医院CT室,邯郸056000

出　　处：《中国医学装备》2024年第2期64-69,共6页China Medical Equipment

基　　金：河北省医学科学研究课题计划(20200475)。

摘　　要：目的:探讨双参数3D动脉自旋标记灌注成像(3D-ASL)对大脑中动脉慢性闭塞(CMCAO)患者血供情况的评价及与脑梗死面积的关系。方法:选取2019年4月至2021年12月邯郸市中心医院收治的112例单侧CMCAO患者,根据数字减影血管造影(DSA)检查结果将其分为大脑前动脉(ACA)脑膜支代偿(LMA)的代偿组(50例)和无代偿组(62例)。分析弥散张量成像(DWI)、磁共振血管成像(MRA)以及双参数3D-ASL检测结果,对比两组临床资料、3D-ASL参数及脑梗死发生情况,分析代偿情况影响因素,根据脑血流量值[标记后延迟时间(PLD)=1.5 s、2.5 s]绘制CMCAO患者LMA诊断价值的受试者工作特征(ROC)曲线,对比不同脑梗死面积患者3D-ASL参数,并分析3D-ASL参数与脑梗死面积的关系。结果:CMCAO患者患侧表观弥散系数(ADC)为0.31±0.10、脑血流量值1.5 s和2.5 s分别为25.67±4.25和54.09±4.49,且均低于健侧,差异有统计学意义(t=27.591、34.210、3.913,P<0.05);代偿组患者的脑血流量值分别为1.5 s和2.5 s,与无代偿组相比,差异有统计学意义(t=5.584、4.090,P<0.05);logistic回归分析显示年龄、卒中、脑梗死面积、脑血流量值1.5 s和2.5 s均为CMCAO患者LMA情况的影响因素(OR=4.187、6.604、0.482、5.681、5.807,P<0.05);ROC曲线显示,PLD为1.5 s和2.5 s时,3D-ASL诊断LMA的曲线下面积(AUC)分别为0.720、0.812;代偿组正常及腔隙性脑梗死比例高于无代偿组,中小梗死及大面积脑梗死比例低于无代偿组,差异有统计学意义(t=28.062,P<0.05);不同脑梗死面积患者脑血流量值(1.5 s)相比,差异有统计学意义(t=0.202,P<0.05);3D-ASL参数脑血流量值(1.5 s)与脑梗死面积呈负相关(r=-0.261,P<0.05)。结论:双参数3D-ASL可无创、直观地评估单侧CMCAO患者LMA代偿状况,患侧大脑中动脉(MCA)血流灌注与脑梗死面积相关,PLD为1.5 s时,可对此进行敏感反应,为临床诊治及疗效判断提供客观可靠的依据。Objective:To explore the evaluation of dual-parameter three dimension arterial spin labelling(3D-ASL)perfusion imaging on blood-supply situation of patients with chronic middle cerebral artery occlusion(CMCAO)and the relationship between that and cerebral infarction area.Methods:A total of 112 patients with unilateral CMCAO admitted to Handan Central Hospital from April 2019 to December 2021 were selected,and all of them were divided into a compensatory group(50 cases)with anterior cerebral artery(ACA)leptomeningeal anastomoses(LMA)and an uncompensated group(62 cases)according to the results of digital subtraction angiography(DSA)examination.The results of diffusion weighted imaging(DWI),magnetic resonance angiography(MRA)and dual-parameter 3D-ASL detection were respectively analyzed,and the clinical data,3D-ASL parameters and the incidence of cerebral infarction between the two groups were compared.The influence factors of compensation were further analyzed.The receiver operating characteristics(ROC)curve of LMA diagnostic value of CMCAO patients was drawn according to cerebral blood flow values[post label delay(PLD)=1.5 s,2.5 s].The 3D-ASL parameters of patients with different cerebral infarction areas were compared,and the relationship between 3D-ASL parameters and cerebral infarction area was compared.Results:The apparent diffusion coefficient(ADC)at the side of lesion of CMCAO patients was(0.31±0.10),and cerebral blood flow values at 1.5s and 2.5s were respectively(25.67±4.25)and(54.09±4.49),which were significantly lower than those at the side of healthy,and the differences were statistically significant(t=27.591,34.210,3.913,P<0.05),respectively.The differences of cerebral blood flow values(1.5s and 2.5s)between compensatory group and uncompensated group were significant(t=5.584,4.090,P<0.05),respectively.The results of logistic regression analysis showed that age,stroke,cerebral infarction area and cerebral blood flow values(1.5 s and 2.5 s)were influencing factors on LMA compensation of CMCAO patients

关 键 词：双参数 3D动脉自旋标记灌注成像(3D-ASL) 大脑中动脉慢性闭塞(CMCAO) 标记后延迟时间 脑梗死面积 

分 类 号：R743.3[医药卫生—神经病学与精神病学]