Methods The voltage of QRS wave were measured with 12 leads electrocardiogram by electrocardiograph.
方法应用心电图机描记常规12导联心电图，按心电图测量标准测量QRS波群电压。
As the interval between QRS waves and T wave in ECG, QT interval represents the depolarization of ventricle.
QT间期指心电波形中QRS波起点到T波终点这一段所对应的时间间隔，代表心室去极化过程。
We introduce the error analysis to the QRS wave-group integrated judgment of 12-lead synchronization ECG signal.
在12导联QRS波的综合判断上引入了误差分析的基本思想。
A novel electrocardiogram compression algorithm based on minimum root-mean-square error prediction utilizing the correlation of adjacent QRS wave is proposed.
本文提出了一种利用相邻QRS波的相关性进行最小均方差预测的心电图压缩算法。
Objective To analyze the electrocardiogram characteristics of patients with AF complicated with wide QRS wave and the underlying differential diagnosis methods.
目的分析探讨心房颤动（房颤）伴宽QRS波群的心电图特征及鉴别诊断。
The advantage of this method is that it doesn't require locating accurately the end point of QRS wave of HRECG and overcomes low resolution of frequency-domain analysis.
并且克服了时域法要求对QRS 复合波的起点和终点准确定位不易的缺点，以及频域分析法频率分辨率不足的缺陷。
The method USES both frequency property and amplitude property of QRS wave and gets better detection results than the traditional method, which USES frequency property of QRS wave only.
该方法充分利用了QRS波的频率特性和幅度特性，比传统的只利用频率特性的检测方法精度要高。
A linear analysis and pattern recognition method to detect and analyze dynamic cardiogram QRS wave are applied I this paper and an effective method for HRW analysis system is introduced.
采用线性分析和模糊模式识别理论，对动态心电图QRS波形进行检测和分析的算法进行了语法描述，并在此基础上给出了心率失常分析系统实现的具体方法。
The second one is the circuit which deals with the heart rate, it selects th voltage comparator to collect the QRS wave in one cycle, and detect the rising edge to record the heart rate.
二是心率处理电路：选用电压比较器提取一个心电周期中的R波，检测上升沿个数以记录心率。
The detection algorithm that adopts tow-level finite difference and extremal theory is used to locate the R wave and the one-level and tow-level derivative methods is used when detect QRS wave.
对于R波，采用二级差分和极值方法定位，对QRS波群采用一阶导数与二阶导数并用算法进行检测。
Objective: To observe regional systolic and diastolic function of left ventricular myocardium in dilated cardiomyopathy patients with narrow QRS wave by quantitative tissue velocity imaging (QTVI) .
目的：超声评价窄QRS波的扩张型心肌病患者左室局部心肌的收缩和舒张功能。
The rate of resource occupancy shows that the resourceful propertiy in FPGA is greatly utilitzed by the scheme and the results of simulation show that QRS wave is detected accurately in FPGA system.
从综合后的资源占有率上可以看出系统充分利用了FPGA内部丰富的资源，从仿真的结果看出在FPGA系统上准确的检测出了QRS波。
Conclusions Understanding the reasons and mechanisms of QRS wave diversity in escape beat and escape rhythm is of great reference value for the evaluation, diagnosis of all kinds of conduction block.
结论确定QRS波形态多变的逸搏及逸搏心律的形成原因，对于评价各种传导障碍的性质及临床诊治具有重要的参考价值。
At last, the validation of QRS detection and t wave detection was implemented using the MIT-BIH Arrhythmia Database and the QT Database separately.
最后分别利用了MIT—BIH数据库和QT数据库对QRS波检测效果和T波检测效果进行了验证。
In this paper, several characteristics of ECG from patients, such as QRS complex and its onset and offset T wave and S-T segment, has been detected using wavelet method.
本课题基于小波理论设计软件算法，提出了模极值线群方法，抽取心电信号中若干具有临床价值的特征：QRS波群组态及其起点和终点、T波、S-T段。
Methods We compared the surface ECG in 12 leads during sinus rhythm with tachycardia, and tried to find the relation between the different locations of retrograde P' wave and QRS complex in all leads.
方法用对比的方法分析窦律下和心动过速时12导联体表心电图，找出心动过速时逆传P’波在不同导联的位置及与QRS波的关系。
As the variation of QRS complex wave is the primary reference criteria on clinical diagnosis of arrhythmia, exact extraction of the features of QRS complex wave is the key problem.
QRS复合波群的形态变化是心律失常临床诊断的重要参考标准，因而准确地提取QRS复合波群的波形特征是心律失常自动化诊断中面临的关键问题。
Objective To investigate the age trend of the frontal QRS axis in a normal population and its effect on QRS-wave amplitude in the limb leads.
目的调查和评估正常人额面QRS电轴的年龄趋势以及对肢体导联QRS波振幅的影响。
Conclusion During moment of coronary angiography, rised pressure of coronary artery and short_lived myocardial ischemia might lead to abnormal QRS _ wave and change of ST _ t in ECG.
结论冠状动脉造影瞬间冠状动脉压力升高、短暂心肌缺血，可引起心电图QRS波群及ST_T的异常改变。
Conclusion During moment of coronary angiography, rised pressure of coronary artery and short_lived myocardial ischemia might lead to abnormal QRS _ wave and change of ST _ t in ECG.
结论冠状动脉造影瞬间冠状动脉压力升高、短暂心肌缺血，可引起心电图QRS波群及ST_T的异常改变。
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