中国临床医学影像杂志2026，Vol.37Issue(5)：337-341,5.DOI:10.12117/jccmi.2026.05.008
二维斑点追踪技术对急性心肌梗死患者PCI术后左心室功能恢复情况的评估价值
Evaluation value of 2D-STI for the recovery of left ventricular function in patients with acute myocardial infarction after PCI
摘要
Abstract
Objective:To explore the evaluation value of two-dimensional speckle-tracking imaging(2D-STI)for the recov-ery of left ventricular function in patients with acute myocardial infarction(AMI)after percutaneous coronary intervention(PCI).Methods:A total of 80 patients with AMI undergoing PCI in the hospital were enrolled as observation group between May 2024 and June 2025,and all underwent cardiac color Doppler ultrasound and 2D-STI examinations before and after surgery.The relevant imaging parameters were recorded.The levels of serum N-terminal pro-brain natriuretic peptide(NT-proBNP)and high-sensitivity cardiac troponin T(hs-cTnT)were detected.A total of 80 healthy individuals during the same period were en-rolled as control group.The differences in imaging parameters and serum indexes between the two groups were compared.The change trends of imaging parameters and serum indexes before and after surgery in AMI patients were observed,and the cor-relation between 2D-STI parameters and routine cardiac color Doppler ultrasound parameters,serum indexes was analyzed.Results:The left ventricular end-diastolic volume(LVEDV)and left ventricular end-systolic volume(LVESV)in observation group were significantly higher than those in control group(P<0.05),while left ventricular ejection fraction(LVEF)and stroke volume(SV)were significantly lower than those in control group(P<0.05).The levels of serum NT-proBNP and hs-cTnT in ob-servation group were significantly higher than those in control group(P<0.05).The absolute values of global longitudinal strain(GLS),global radial strain(GRS)and global circumferential strain(GCS)at different myocardial segments(basal segment,middle segment,apical segment),peak rotation angle at the base of left ventricle(Rotbase),peak rotation angle at apex of left ventricle(Rotapex)and overall rotation angle peak of left ventricle(Rot)in observation group were significantly lower than those in control group(P<0.05).At 1 week and 3 months after PCI,imaging parameters and serum indexes were significantly improved in ob-servation group(P<0.05).The absolute values of GLS,GRS,GCS,Rotbase,Rotapex and Rot in different segments were negatively correlated with LVEDV,LVESV,NT-proBNP and hs-cTnT,while positively correlated with LVEF and SV(P<0.05).Conclu-sion:2D-STI can effectively evaluate the recovery of left ventricular function in AMI patients after PCI,which provides reli-able and quantifiable evidence for clinical diagnosis and treatment.关键词
心肌梗死/超声检查,多普勒,彩色/经皮冠状动脉介入治疗Key words
Myocardial Infarction/Ultrasonography,Doppler,Color/Percutaneous Coronary Intervention分类
医药卫生引用本文复制引用
牟晓雯,王庆久,朱粮..二维斑点追踪技术对急性心肌梗死患者PCI术后左心室功能恢复情况的评估价值[J].中国临床医学影像杂志,2026,37(5):337-341,5.基金项目
2024年度青岛市医疗卫生科研项目(项目编号:2024-WJKY088). （项目编号:2024-WJKY088）
