二维斑点追踪显像技术在评估陈旧性心肌梗死伴缺血性二尖瓣返流患者左心室乳头肌功能中的应用  

Application of two-dimensional speckle tracking imaging in evaluating left ventricular papillary muscles function of patients with old myocardial infarction combined with ischemic mitral regurgitation

作　　者：陈玲丽[1] 尤华[1] 顾卫霞[1] 雍永宏[2] CHEN Lingli YOU Hua GU Weixia et al(Department of Cardiology, Affiliated Wujiang First People＇s Hospital, Nantong University, Wujiang 215200, CHINA)

机构地区：[1]南通大学附属苏州市吴江第一人民医院心脏病科,江苏省215200 [2]南京医科大学第一附属医院心脏病科

出　　处：《江苏医药》2016年第20期2212-2215,共4页Jiangsu Medical Journal

摘　　要：目的探讨二维斑点追踪显像(2DSTI)技术在评价陈旧性心肌梗死伴缺血性二尖瓣返流患者乳头肌功能中的临床价值。方法选取陈旧性心肌梗死伴缺血性二尖瓣返流患者78例(病例组)和健康体检者58例(对照组),应用2DSTI技术测量并比较两组左心室前外侧和后内侧乳头肌的收缩期峰值应变(APM-Ls和PPM-Ls)、运动速度(APM-Vs和PPM-Vs)和应变达峰时间(APM-Ts和PPM-Ts)。结果与对照组比较,病例组的APM-Ls和PPM-Ls较低[(-18.6±5.2)%vs.(-25.6±5.0)%和(-15.6±4.7)%vs.(-25.3±5.4)%](P<0.05),APM-Vs和PPM-Vs较慢[(2.9±1.1)cm/s vs.(4.9±1.2)cm/s和(2.6±1.0)cm/s vs.(5.2±1.4)cm/s](P<0.05),APM-Ts和PPM-Ts延长[(448.3±45.6)ms vs.(278.3±56.0)ms和(478.3±50.7)ms vs.(284.5±55.5)ms](P<0.05)。结论 2DSTI技术有助于评估陈旧性心肌梗死患者乳头肌的运动功能。Objective To evaluate the value of two‐dimensional speckle tracking imaging （2DSTI） in evaluating left ventricular papillary muscles function of patients with old myocardial infarction combined with ischemic mitral regurgitation .Methods With 2DSTI technique ,the indicators of left ventricular anterolateral and posterior medial papillary muscles （APM and PPM ） were measured in 78 patients with old myocardial infarction combined with ischemic mitral regurgitation（group A） and 58 healthy subjects（group B） ,which included the peak systolic strain （Ls） ,systolic velocity （Vs） and the time to peak （Ts） .The differences of those indicators were compared between two groups .Results Compared with group B ,the patients in group A showed lower APM‐Ls and PPM‐Ls[（-18.6 ± 5.2）% vs .（-25.6 ± 5.0）% and （-15.6 ± 4.7）% vs . （-25.3±5.4）% ]（P〈0.05）,slowerAPM‐VsandPPM‐Vs[（2.9±1.1）cm/svs.（4.9±1.2）cm/s and （2.6 ± 1.0）cm/s vs .（5.2 ± 1.4）cm/s]（P〈0 .05） ,and longer APM‐Ts and PPM‐Ts[（448.3 ± 45.6）ms vs .（278.3 ± 56.0） ms and （478.3 ± 50.7） ms vs .（284.5 ± 55.5） ms]（P〈0 .05） . Conclusion 2DSTI technique is helpful in evaluating papillary muscle functions in the patients with old myocardial infarction .

关 键 词：超声心动图 斑点追踪技术 乳头肌 

分 类 号：R542[医药卫生—心血管疾病]