根据心电图推测左心室重量  

Prediction of Left Ventricular Mass by ECG

作　　者：王振兴[1] 陈俭 恽振先 张新民 陈日新[1] 张丽容[1] 刘乃丰[1] 

机构地区：[1]南京铁道医学院附属医院心脏科

出　　处：《铁道医学》1996年第4期201-202,共2页Railway Medical Journal

摘　　要：为探讨心电图诊断左心室肥厚（ＬＶＨ）的效能，根据时７６例高血压患者进行标准１２导联心电图险查获取的数据，用多元逐步回归法，建立了推测超声心动图左心室重量指数（ＬＶＭＩ）的心电图模型。超声心动图检查和心电图估测ＬＶＭＩ的相关性为Ｒ２＝０．４９．将ＬＶＨ作为二分类的因变量，同时建立了区分ＬＶＨ的Ｌｏｇｉｓｔｉｃ回归模型．该模型选胸导联最大ＱＲＳ电压（Ｖｍａｘ）和ＲａＶＬ为指标，结果为中等度的敏感性（５０．８％）和特异性（９３．２％）。该方法值得进一步深入研究。Multiple stepwise regression methods were used to derive electrocardiographic(ECG)models for prediction of the echocardiographic left ventricular mass index(LVMI)from standard 12-lead ECG measurements using data files of 76hypertensive patients.The correlation between echocardiographic and ECG estimates of LVMI was fair(R2=0.49).A separate logistic regression model was derived for classification of left ventricular hypertrophy(LVH)as a dichotomized dependent variable.This classifier chose maximum precordial QRS voltage(Vmax)and RaVL and produced a moderate sensitivity(50.8%)and specificity(93.2%).We conclude that the initial performance of these multivariate estimators of LVMI and LVH classifiers is promising enough to subject them to further studies.

关 键 词：左心室肥厚 心电图 超声心动图 

分 类 号：R540.4[医药卫生—心血管疾病] R541.04[医药卫生—内科学]