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基于组织多普勒的应变率成像技术评价前壁心肌梗死患者右心室功能及意义 被引量:1

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摘要 目的观察前壁急性ST段抬高性心肌梗死(STEMI)患者支架植入术后右心室长轴应变及应变率变化,评价右心室局部功能。方法选取前壁STEMI且成功进行冠状动脉支架植入术患者21例(STEMI组),对照组为冠脉造影正常或冠脉狭窄率<50%的同期在我院进行冠状动脉造影检查者26例。对两组患者进行常规二维超声心动图检查,然后在组织多普勒模式下采集标准心尖四腔心图像,分析各节段的应变及应变率曲线,选取每个心动周期中最大收缩期负值作为应变及应变率峰值,连续测量3个心动周期,取其平均值。结果常规超声心动图检测结果显示,STEMI组患者左心室舒张末期内径、左心室收缩末期内径及E/A比值与对照组比较差异无统计学意义(P>0.05),STEMI组患者左心室射血分数低于对照组(P<0.01)。STEMI组右心室游离壁中段、心尖段、平均应变及应变率低于对照组(P<0.01)。结论前壁STEMI患者右心室功能存在不同程度的降低。
出处 《江苏医药》 CAS 2015年第18期2178-2180,共3页 Jiangsu Medical Journal
基金 南通市临床医学专项基金(HS2013069)
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