中国中西医结合影像学杂志2024，Vol.22Issue(2)：217-219,3.DOI:10.3969/j.issn.1672-0512.2024.02.019
健康小型猪心脏IVIM成像不同冠状动脉间定量参数的对比分析
Comparative analysis of quantitative parameters among different coronary arteries by IVIM imaging in healthy miniature pig hearts
摘要
Abstract
Objective:To investigate the standard values of each quantitative parameter among different coronary arteries for IVIM imaging of the miniature pig heart.Methods:Standard two-chamber,three-chamber,four-chamber heart and short-axis cine imaging of the left ventricle were performed using 3.0 T MRI FIESTA sequence in 10 healthy miniature pig.At the level of the short axis,IVIM was performed on the bottom,heart and apex.The image quality was assessed by two radiologists using a double-blind method to grade the image quality and to measure the relevant parameters(D,D*,f values)in different coronary blood supply areas separately.Results:The consistency of the image quality assessment was good(K=0.84).The differences in the D* values between RCA and LCX and between LAD and LCX were statistically significant(both P＜0.05).The difference in f value between RCA and LCX was statistically significant(P＜0.05).The difference in D values between different coronary supply regions was not statistically significant(P＞0.05).The AUCs for D*,D and f vlaues were 0.625,0.488 and 0.342,respectively.Conclusions:There are differences in the quantitative parameters among the three major branches of the coronary artery supplying the myocardium according to IVIM imaging of the miniature pig heart,and the D* value has the best diagnostic efficacy for normal myocardium.The normal parameters of the corresponding myocardial segments are also obtained,which can provide a basis for relevant studies.关键词
磁共振成像/体素内不相干运动/冠状动脉/定量分析Key words
Magnetic resonance imaging/Intravoxel incoherent motion/Coronary artery/Quantitative analysis引用本文复制引用
宋辉,王荣品..健康小型猪心脏IVIM成像不同冠状动脉间定量参数的对比分析[J].中国中西医结合影像学杂志,2024,22(2):217-219,3.基金项目
贵州省高层次创新型人才项目(黔科合平台人才-GCC[2022]041-1). （黔科合平台人才-GCC[2022]041-1）
