全方位M-型超声评价高血压病患者左心室Tei指数及其相关参数  

Evaluation of left ventricle Tei index and related parameters in hypertension patients with free angle M-mode echocardiography

作　　者：李楠[1] 靳忠民[2] 任卫东[1] 唐力[1] 陈昕[1] 马春燕[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 [2]沈阳市第四人民医院超声科,辽宁沈阳110031

出　　处：《中国医学影像技术》2009年第4期605-608,共4页Chinese Journal of Medical Imaging Technology

摘　　要：目的评估采用全方位M-型(FAM)超声技术检测高血压病患者左心室Tei指数、等容收缩指数(ICT/ET)、等容舒张指数(IRT/ET)等参数改变的效果。方法选取原发性高血压病患者80例,依据左心室心肌重量指数(LVMI)分为2组:左心室心肌肥厚组(A组,LVMI:男性≥120g/m2,女性≥115g/m2)21例;左心室心肌无肥厚组(B组,LVMI:男性<120g/m2,女性<115g/m2)59例。60名健康人作为对照组(C组)。先通过常规超声检查对受检者进行各基础参数指标的测量,然后采用FAM技术测量左心室Tei指数及ICT/ET、IRT/ET等各相关参数,分析评价各指标临床意义及相关性。结果B、C两组ICT/ET的差异无统计学意义。A、B两组的Tei指数及ICT/ET、IRT/ET显著大于C组(P<0.01);Tei指数及其相关参数与部分传统超声评价指标相关性良好。结论应用Tei指数结合ICT/ET、IRT/ET等相关参数可更全面地综合评价高血压病患者的左心室整体功能表现,FAM技术为Tei指数及其相关参数的测量与评价提供了新的检测手段。Objective To evaluate left ventricle Tei index and related parameters including isovolumetric contraction index （ICT/ET） and isovolumetric relaxation index （IRT/ET） in hypertension patients obtained by free angle M-mode （FAM） echocardiography technique. Methods According to left ventricular mass index （LVMI）, 80 essential hypertension patients were divided into two groups： left ventricular myocardial hypertrophy group （group A, LVMI： man≥120 g/m^2, woman≥ 115 g/m^2 , n=21） ; left ventricular myocardial no hypertrophy group （group B, LVMI： man〈120 g/m^2 , woman〈ll5 g/m^2, n=59）. There were 60 healthy volunteers in the control group （group C）. At first, some basic parameters were measured by conventional echocardiography examination, then Tel index and related parameters such as ICT/ET and IRT/ET of left ven- tricle were measured. Results There was no significant difference of ICT/ET between group B and group C. Left ventricle Tei and ICT/ET, IRT/ET in group A and B were obviously higher than those in group C （P〈0.01）. There was significant correlation between Tei index and related parameters and also some basic parameters. Conclusion Tei index combining with related parameters such as ICT/ET and IRT/ET provides favorable effect on evaluation of hypertension patients with high sensitivity. Free angle M-mode echocardiography technique is a new approach for the measurement of Tei index and related parameters.

关 键 词：超声心动描记术 全方位M-型 高血压病 左心室功能 TEI指数 

分 类 号：R540.45[医药卫生—心血管疾病] R544.1[医药卫生—内科学]