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超声斑点追踪显像评价左心室心肌致密化不全患者心肌功能
引用本文:陆叶,吕秀章,马宁,江勇,徐楠,朱振辉,张红菊. 超声斑点追踪显像评价左心室心肌致密化不全患者心肌功能[J]. 中国医学影像技术, 2011, 27(5): 948-952
作者姓名:陆叶  吕秀章  马宁  江勇  徐楠  朱振辉  张红菊
作者单位:1. 北京协和医学院,中国医学科学院,阜外心血管病医院超声科,北京,100037
2. 北京协和医学院,中国医学科学院放射科,北京,100037
摘    要: 目的 应用超声斑点追踪显像技术(STI)定量评价左心室心肌致密化不全(LVNC)患者左心室心肌纵向收缩功能,并探讨其在LVNC诊断中的价值。方法 LVNC患者21例,分为两组:LVNC-1组(n=10):LVEF≥50%;LVNC-2组(n=11):LVEF<50%。以21名年龄性别相匹配的健康志愿者作为正常对照组。采集左心室心尖长轴动态图像,利用STI获取各节段心肌纵向应变(LS)曲线及收缩期峰值应变。结果 LVNC-2组左心室各水平LS均较正常对照组明显减低(P均<0.05),LVEF、E’、E/E’与正常对照组比较差异有统计学意义(P均<0.05)。LVNC-1组LS均较正常对照组减低(P均<0.05),但其E’、E/E’与正常对照组无明显差异。取左心室心尖段LS均值-20.71%为界值,诊断LVNC患者左心室纵向收缩功能减低的敏感度和特异度为95.00%、100%;整体LS均值-17.90%为界值,其敏感度和特异度与LS相同。结论 应用超声STI技术可对LVNC患者左心室心肌功能进行深入定量评价。

关 键 词:孤立性心室肌致密化不全  斑点追踪显像  心肌收缩
收稿时间:2010-12-25
修稿时间:2011-01-19

Assessment of left ventricular function with speckle tracking imaging in patients with left ventricular noncompaction
LU Ye,LV Xiu-zhang,MA Ning,JIANG Yong,XU Nan,ZHU Zhen-hui and ZHANG Hong-ju. Assessment of left ventricular function with speckle tracking imaging in patients with left ventricular noncompaction[J]. Chinese Journal of Medical Imaging Technology, 2011, 27(5): 948-952
Authors:LU Ye  LV Xiu-zhang  MA Ning  JIANG Yong  XU Nan  ZHU Zhen-hui  ZHANG Hong-ju
Affiliation:Department of Echocardiography, Cardiovascular Institute & Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, China;Department of Echocardiography, Cardiovascular Institute & Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, China;Department of Radiology, Cardiovascular Institute & Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, China;Department of Echocardiography, Cardiovascular Institute & Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, China;Department of Echocardiography, Cardiovascular Institute & Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, China;Department of Echocardiography, Cardiovascular Institute & Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, China;Department of Echocardiography, Cardiovascular Institute & Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, China
Abstract:
Keywords:Isolated noncompaction of the ventricular myocardium  Speckle tracking imaging  Myocardial contraction
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