长期过量饮酒者心肌损伤的心脏磁共振特征追踪技术的成像评价  

Imaging evaluation of long-term over-drinkers myocardial injury by cardiac magnetic resonance feature tracking techniques

作　　者：刘新峰[1] 刘江勇[1] 廖旦 付隽 王荣品[1] LIU Xinfeng;LIU Jiangyong;LIAO Dan;FU Jun;WANG Rongpin(Department of Medical Imaging,Guizhou Provincial People's Hospital,Guiyang 550002,China)

机构地区：[1]贵州省人民医院医学影像科,贵阳550002

出　　处：《磁共振成像》2024年第9期68-73,共6页Chinese Journal of Magnetic Resonance Imaging

基　　金：贵州省科技计划项目(编号:黔科合成果-LC[2023]022);贵州省卫生健康委员会科学技术基金项目(编号:gzwkj2021-373号);贵州省高层次创新型“千层次”人才培养项目(编号:GZSYQCC[2024]004);贵州省高层次创新型“百层次”人才培养项目(编号:黔科合平台人才-GCC[2022]041-1)。

摘　　要：目的探讨长期过量饮酒者心肌损伤心脏磁共振特征追踪技术(cardiovascular magneticresonance featu retracking technology,CMR-FT)成像的评价价值,并就过量饮酒者左室心肌应变参数影响因素进行分析。材料与方法39例长期过量饮酒者(饮酒组)和20例无饮酒史健康志愿者(对照组)行心脏磁共振检查,采用CVI42软件计算左室心肌各向应变参数,就两组左室整体心肌应变参数做统计学分析,采用多元线性回归方程分析饮酒组左室各向应变损伤程度与日均酒精摄入量、饮酒时长的关系,构建受试者工作特征(receiver operating characteristic,ROC)曲线,计算左室整体心肌各向应变在鉴别两组的诊断效能。结果饮酒组左室整体心肌径向、周向、纵向应变分别为29.43%(19.60%,33.97%)、-17.14%(-19.38%,-13.57%)、-13.75%(-16.37%,-9.89%),均低于对照组,饮酒组左室收缩期及舒张期各向峰值应变率也低于对照组(P<0.05)。回归方程分析表明日均酒精摄入量、饮酒时长是左室各向应变影响因素,日均酒精摄入量对各向应变影响大于饮酒时长。左室整体心肌各向应变鉴别两组的敏感度均在70%以上。结论CMR-FT技术能够定量评价过量饮酒者左室心肌应变损伤程度,日均酒精摄入量、饮酒时长是左室心肌应变损伤程度重要影响因素。Objective:To investigate the evaluation value of cardiovascular magnetic resonance feature tracking technology(CMR-FT)in patients with long-term over-drinkers,and analyze the influencing factors of left ventricular myocardial strain parameters in patients.Materials and Methods:A total of 39 long-term over-drinker were recruited(drinking group)and 20 healthy volunteers with no drinking history(control group)were examined cardiac magnetic resonance cine examination.The global left ventricular anisotropic strain parameters of two groups were calculated by CVI42 software,and the parameters of the two groups were statistically analyzed.Multiple linear regression equation was used to analyze the relationship between the degree of left ventricular strain damage and average daily alcohol consumption and drinking time in drinking group.ROC curve was constructed to calculate the overall left ventricular anisotropic strain in the differential diagnosis of the two groups.Results:The radial,circumferential and longitudinal strains of the whole left ventricular myocardium in the drinking group were 29.43%(19.60%,33.97%),-17.14%(-19.38%,-13.57%),-13.75%(-16.37%,-9.89%),respectively,which were lower than those in the control group.The peak strain rates of the left ventricular systolic and diastolic phases in the drinking group were also lower than those in the control group(P<0.05).Regression equation analysis showed that daily alcohol consumption and drinking time were the influencing factors of left ventricular strain,and daily alcohol consumption has a greater impact on strain than drinking time.The sensitivity of distinguishing the overall myocardial strain of the left ventricle in both groups is above 70%.Conclusions:CMR-FT technique can quantitatively evaluate left ventricular myocardial strain in over-drinkers.The average daily alcohol consumption and drinking time are important factors influencing the degree of left ventricular myocardial strain injury.

关 键 词：磁共振成像 过量饮酒者 特征追踪 心肌应变 影响因素 

分 类 号：R445.2[医药卫生—影像医学与核医学] R542.2[医药卫生—诊断学]