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应变成像评价肥厚型心肌病左室局部心肌收缩和舒张功能

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摘要 目的应用应变成像(SI)技术评价肥厚型心肌病(HCM)患者左心室局部心肌长轴方向收缩和舒张功能。方法获取18例HCM患者和40例正常对照组心尖左室长轴、心尖两腔、心尖四腔的心肌应变曲线,测量并比较两组左室各节段水平的收缩期峰值应变(sε)。统计并比较两组左室各节段出现收缩后应变(PSS)节段数及幅度值。测量左室射血分数(LVEF)和二尖瓣血流的E峰、A峰,计算E/A值。结果HCM组各节段水平的sε明显低于正常对照组(P<0.05),绝大部分节段PSS的绝对值大于正常组(P<0.05)。LVEF和E/A在两组间差异均无显著意义(P>0.05)。结论SI能定量评价HCM左室局部心肌收缩和舒张功能。
机构地区 解放军第
出处 《浙江实用医学》 2007年第5期374-375,384,共3页 Zhejiang Practical Medicine
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