肥厚型心肌病与高血压左心室肥厚应变率比较分析  

Compare and analysis about hypertrophic cardiomyopathy and hypertensive left ventricular hypertrophy with strain rate imaging

作　　者：姜志荣[1] 李大海[2] 张小花[1] 

机构地区：[1]青岛大学医学院附属医院心脏超声科,266003 [2]河北大学附属医院超声科

出　　处：《中华超声影像学杂志》2006年第12期888-891,共4页Chinese Journal of Ultrasonography

摘　　要：目的比较肥厚型心肌病(HCM)与高血压左心室肥厚(H-LVH)应变率变化的差异,探讨应变率显像技术对二者的鉴别诊断价值。方法测定23例HCM患者、30例H-LVH患者及20例正常对照组常规超声心动图参数及室间隔与左室后壁应变率参数并进行对比。结果HCM患者室间隔与左室后壁相比,收缩期应变(εsys)、收缩期应变率峰值(SRsys)、舒张早期应变率峰值(SRdia)减小,心房收缩期应变率峰值(SRa)增大。HCM组与H-LVN组相比,室间隔εsys、SRsys、SRdia减小,SRa增大;左室后壁εsys、SRdia亦减小,差异有统计学意义。SRsys、SRa在两组间无明显差别。与对照组相比,HCM组和H-LVH组室间隔与左室后壁εsys、SRsys、SRdia减小,SRa增大,差异有统计学意义。结论应变率显像能检测HCM患者局域心肌运动功能,并可作为鉴别HCM和H-LVH较为准确、实用的方法。Objective To analyze strain characteristics of hypertrophic cardiomyopathy（HCM） and explore the clinical value of strain rate imaging in differentiating HCM from hypertensive left ventricular hypertrophy（H-LVH）. Methods Parameters of strain and strain rate were obtained and compared among 23 HCM patients, 30 patients with H-LVH and 20 healthy people（control group）. Results In HCM group, systolic strain（εsys ）,peak systolic strain rate（SRsys ）, early diastolic strain rate（SRdia ） obtained from inter-ventricle septum（IVS） were smaller than that obtained from left ventricle posterior wall（LVPW）, while SRa increased in IVS. εsys,SRsys ,SRdia in both patients with HCM and H-LVH were smaller than that in control group, while atrial systolic strain rate（SRa ） increased in HCM group and H-LVH group, εsys, SRsys SRdia, SRa obtained from IVS and εsys, SRdia obtained from LVPW in HCM group showed statistic differences compared with H-LVH group. Conclusions Strain rate imaging could accurately detect the abnormal regional myocardial function of HCM and can be applied as a useful tool in discriminating HCM from H-LVH.

关 键 词：超声心动描记术 心肌病 肥厚性 高血压 肥大 左心室 

分 类 号：R542.2[医药卫生—心血管疾病]