Evaluation of left ventricular diastolic function in patients with acute myocardial infarction using cardiovascular mag-netic resonance function curve
YAO Ruoqian
HU Lingjing
LIU Wanqi
LI Xiangyan
ZHAO Li
LI Shuang
SUN Zheng
LIU Zhi
LU Jie
Abstract：Objective To explore the derivative parameters of the cardiovascular magnetic resonance function curve and to evaluate the left ventricular diastolic function in patients with acute myocardial infarction(AMI).Methods Sixty patients with AMI in Xuanwu Hospital of Capital Medical University from June 2021 to October 2023 were collected retrospectively.Using echocardiography as grouping criteria,based on the analysis of the cardiac function curve of contrast enhanced-steady state free precession(CE-SSFP)sequence,the diastolic filling parameters,and diagnostic efficiency of left ventricular dilatation were quantitatively evaluated.Results The results showed that the diastolic volume recovery time(DVR)of Group Ⅱ was the lon-gest(492.2±54.8)ms,but compared with the normal group(429.8±100.8)ms and Group Ⅰ(473.0±66.7)ms,the difference was not statistically significant(P>0.05);The normalized peak E(NE)of Group Ⅱ was(3.0±0.7)s-1,and the normalized peak A(NA)was(1.7±0.4)s-1;the delay time of diastolic peak in Group Ⅱ was the shortest,at(259.8±56.7)ms.The second dia-stolic left ventricular volume rate(A)was the most effective in diagnosing ventricular dilation,with an area under the curve of 0.9 and a Jordan index of 0.82.Conclusion This study confirms that cardiac function curve analysis can effectively identify left ventricular diastolic function impairment,and provide a new way of judging the prognosis of acute myocardial infarction patients with high consistency and diagnostic efficiency.
Keywords：Cardiac function curveAcute myocardial infarctionDiastolic functionMagnetic resonance imaging
Publication Date：2024-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 43-47 )