实时三维超声心动图评价左室心肌肥厚患者的心肌收缩同步性  

Evaluation of the left ventricular systolic synchrony in patients with left ventricular hypertrophy using real-time three-dimensional echocardiography

作　　者：马春燕[1] 任卫东[1] 唐力[1] 陈昕[1] 李楠[1] 张立敏[1] 王晓冰[1] 

机构地区：[1]中国医科大学附属第一医院心功能科,辽宁沈阳110001

出　　处：《中国医学影像技术》2008年第3期390-392,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的应用实时三维超声心动图(RT3DE)检测左室心肌肥厚(LVH)对左室收缩同步性的影响。方法76例LVH患者分为肥厚型心肌病组(HCM组,34例)和高血压性心脏病组(HHD组,42例),RT3DE测量心率校正的16节段达收缩末最小容积的差值和标准差(Tmsv16-Dif和Tmsv16-SD)作为收缩同步性参数,并与对照组(Con组,40例)比较。结果HCM组的Tmsv16-Dif和Tmsv16-SD均显著高于HHD组和Con组,但HHD组和Con组之间无显著差异。结论LVH并不总是合并左室收缩不同步,HCM左室收缩同步性下降,而HHD左室同步收缩。RT3DE可同时检测左室16个节段的收缩同步性。Objective To evaluate left ventricular （LV） systolic dyssynchrony in patients with left ventricular hypertrophy （LVH） using real-time three-dimensional echocardiography （RT3DE）. Methods The RT3DE examination was performed in 76 patients with LVH including 34 with hypertrophic cardiomyopathy （HCM） and 42 with hypertensive heart disease （HHD）, and 40 controls. The difference （Dif） and standard deviation （SD） of the time to the point with minimal systolic volume （Tmsv） in 16 segments were measured and adjusted by the R-R interval （Tmsv 16-Dif and Tmsv 16-SD）. Results The Tmsv 16-Dif and Tmsv 16-SD were significantly higher in patients with HCM than in controls and patients with HHD, but no difference between controls and patients with HHD. Conclusion The presence of LVH is not always associated with LV dyssynchrony,and the HCM is associated with more severe LV dyssynchrony than HHD. RT3DE is an useful and reliable technique for detecting LV dyssynchrony of all 16 segments simultaneously.

关 键 词：超声心动描记术 实时 三维 左室心肌肥厚 左室收缩同步性 

分 类 号：R540.45[医药卫生—心血管疾病] R542.2[医药卫生—内科学]