二维应变成像技术评价肥厚型心肌病患者伴有心肌致密化不全节段的收缩功能

摘要

Objective To check if there was obvious difference between the non-compacted segments and the compacted segments in contractibility in patients with Hypertrophic Cardiomyopathy by 2D-strain echocardilgraphy. Methods The non-compacted and compacted apical segments were judged by contrast echocardiography in 39 clinical definitely-diagnosed hypertrophic cardiomyopathy. Longitudinal strain of each segment was measured by 2D-strain echocardilgraphy, the contractibility between the non-compacted segments and the compacted segments was compared. Results Longitudinal strain of the non-compacted segments in hypertrophic cardiomyopathy is much lower than that of the compacted segments (P<0.001). Conclusions The contractibility of non-compacted segments is significantly lower than that of the compacted segments.%目的 通过二维应变成像技术评价肥厚型心肌病患者伴有心肌致密化不全的节段与不伴有心肌致密化不全的节段其收缩功能是否有差异.方法 对39例临床确诊肥厚型心肌病的患者,记录其心尖位3个切面的二维图像,应用二维应变成像技术,测量左室各节段心肌的纵向应变.通过造影超声心动图判断相应各心肌节段是否伴有心肌致密化不全,比较伴有心肌致密化不全的心尖节段与不伴有心肌致密化不全的心尖节段的纵向应变的差异.结果 肥厚型心肌病患者伴有心肌致密化不全的节段其纵向应变较不伴心肌致密化不全的节段明显减低(P＜0.001).结论肥厚型心肌病患者伴有心肌致密化不全的心尖节段其收缩功能较不伴有心肌致密化不全的心尖节段明显减低.