房颤患者左心房及左心耳连接处心肌影像特征与左心耳形态学参数的相关性  

Correlation of myocardial imaging features at the junction of the left atrium and left atrial appendage with morphological parameters of left atrial appendage in patients with atrial fibrillation

作　　者：魏晓旋 朱芳华[2] 李彩英[1] 宋鹏[1] 胡婧 耿左军[1] 刘怀军[1] 田欣[1] WEI Xiaoxuan;ZHU Fanghua;LI Caiying(Department of Medical Imaging,the Second Hospital of Hebei Medical University,Hebei,Shijiazhuang 050000,China;不详)

机构地区：[1]河北医科大学第二医院医学影像科,石家庄市050000 [2]河北省医学情报研究所

出　　处：《河北医药》2024年第3期358-362,共5页Hebei Medical Journal

基　　金：河北省医学科学研究课题(编号:20210216)。

摘　　要：目的基于心脏CT血管造影(CTA)成像研究房颤患者的左心耳与左心房连接处的心肌影像特征与左心耳形态学参数之间的相关性,探讨其临床意义。方法回顾性分析2022年5月至2023年5月接受冠状动脉CTA扫描的房颤患者74例,非房颤患者75例,以及正常对照组56例,并记录临床信息。采用图像重建及后处理技术,对左心房与左心耳连接处的心肌、左心耳的形态学指标进行测量。结果房颤组年龄与BMI较非房颤组、对照组偏大(P<0.05),房颤组左心耳开口周长、短径、面积、左心耳体积、左心房体积、左心耳与左心房连接处的心肌厚度较非房颤组、对照组偏大(P<0.05),而非房颤组与对照组间无差异(P>0.05)。多因素logistics分析发现,相对于非房颤患者、正常对照组,房颤对左心耳与左心房连接处的心肌厚度、左心房体积有影响。左心耳与左心房连接处的心肌厚度与左心耳体积、左心房体积呈正相关,且与左心房体积相关性更高。结论房颤患者左心耳与左心房连接处的心肌厚度增加,且心肌厚度与左心耳和左心房体积正相关,左心耳与左心房连接处的心肌有可能在房颤的发生发展过程中具有重要作用。Objective To investigate the correlation of myocardial imaging features at the junction of the left atrium and left atrial appendage with morphological parameters of left atrial appendage in patients with atrial fibrillation based on the cardiac computed tomography angiography(CTA),and to explore its clinical significance.Methods A retrospective analysis was conducted on 74 patients with atrial fibrillation,75 non-atrial fibrillation patients,and 56 normal controls who underwent coronary CTA scans in our hospital from May 2022 to May 2023,and clinical information was recorded.Morphological indicators of the myocardium at the junction of the left atrium and left atrial appendage,and the left atrial appendage were recorded by image reconstruction and post-processing technology.Results The age and body mass index(BMI)of atrial fibrillation patients were significantly larger than those of non-atrial fibrillation patients and normal controls(P<0.05).The circumference,short diameter and area of the left atrial appendage orifice,left atrial appendage volume,left atrium volume,and myocardial thickness at the junction of the left atrial appendage and left atrium in atrial fibrillation patients were significantly larger than those of non-atrial fibrillation patients and normal controls(P<0.05).There was no difference between non-atrial fibrillation patients and normal controls(P>0.05).Multivariate logistic analysis showed that compared to those of non-atrial fibrillation patients and normal controls,atrial fibrillation affected the myocardial thickness at the junction of the left atrial appendage and left atrium and the left atrium volume.The myocardial thickness at the junction of the left atrial appendage and left atrium was positively correlated with the volume of the left atrial appendage and left atrium,and the correlation was much higher with the volume of the left atrium.Conclusion Myocardium at the junction of the left atrial appendage and left atrium in atrial fibrillation patients thickens,and the myocardial thic

关 键 词：左心耳 心肌厚度 房颤 CT血管造影 

分 类 号：R445[医药卫生—影像医学与核医学]