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Method and device for selecting electrocardiogram lead in multiple lead synchronous electrocardiographic signals

An ECG signal and multi-lead technology, applied in the field of signal processing, can solve problems such as inaccurate measurement results

Active Publication Date: 2013-12-11
EDAN INSTR
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a multi-lead synchronous ECG signal with relatively accurate measurement results when the signal quality is poor, aiming at the above-mentioned defects of the prior art that the measurement results are inaccurate when the signal quality is poor. Method and device for selecting ECG leads

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  • Method and device for selecting electrocardiogram lead in multiple lead synchronous electrocardiographic signals
  • Method and device for selecting electrocardiogram lead in multiple lead synchronous electrocardiographic signals

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Embodiment Construction

[0060] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0061] Such as figure 1 As shown, in the method and device embodiment of selecting an ECG lead in the multi-lead synchronous ECG signal of the present invention, the method includes the following steps:

[0062] Step S11 obtains multi-lead synchronous ECG signals, processes them separately to obtain their digital signals: in this step, obtains multi-lead synchronous ECG signals through physiological electrodes, and processes these ECG signals respectively to obtain their digital signals. Digital lead signals; that is to say, connect the human body through physiological electrodes, and obtain multi-lead synchronous ECG signals of the human body through pre-low-pass filter, signal differential amplification, and analog-to-digital converters. These signals are the basis for subsequent steps. Physiological electrodes are generally conductors such as limb cl...

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Abstract

The invention relates to a method for selecting electrocardiogram lead in multiple lead synchronous electrocardiographic signals. The method comprises the following steps: acquiring multiple lead synchronous electrocardiographic signals by virtue of a physiological electrode, and respectively processing the electrocardiographic signals to acquire digital lead signals of the electrocardiographic signals; respectively analyzing the signal quality of the lead signals to obtain an ECG (electrocardiogram) signal level and a noise level of each lead signal; respectively calculating any two signals of the multiple lead signals to obtain correlation coefficients of the multiple lead signals; forming a matrix P of the correlation coefficients by the multiple correlation coefficients; and selecting a lead signal with maximum absolute value of the correlated coefficient and no interference for leading and storing the lead signal. The invention also relates to a device for implementing the method. The method and device for selecting electrocardiographic lead in multiple lead synchronous electrocardiographic signals have the beneficial effects of guaranteeing the accuracy of measurement results even under the circumstance of poor quality and high noise of electrocardiographic signals.

Description

technical field [0001] The present invention relates to signal processing, more specifically, to a method and device for selecting an electrocardiographic lead in multi-lead synchronous electrocardiographic signals. Background technique [0002] An important step in automatic electrocardiogram analysis is to accurately detect each QRS wave first. If the QRS wave is detected incorrectly, subsequent T wave and P wave detection, various parameter measurement and classification will be meaningless. In recent years, the use of multi-lead ECG signal synchronous acquisition technology has become the mainstream in the industry; and in QRS wave detection and classification, most of them use fixed single-lead (such as limb II) analysis technology or fixed multi-lead (such as , II, V leads) analysis techniques. When the signal quality of the fixed lead is good, and the slope and amplitude of the QRS wave are relatively large, the detected QRS wave is more accurate; once the fixed lead...

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Application Information

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IPC IPC(8): A61B5/0402
Inventor 魏大雪廖云朋周峰
Owner EDAN INSTR
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