Method for enhancing synchronously recorded multichannel electrocardio signals

Abstract

A method for enhancing synchronously recorded multichannel electrocardio signals is characterized by comprising the following steps: (1) reading synchronously recorded multichannel electrocardio signals, and setting the multichannel electrocardio signal as X = [x1; x2; ...; xi...; xm], the m channel electrocardio signals can be directly recorded m channel electrocardio signals or can also be m channel electrocardio signals subjected to certain processing, the preprocessing can refer to basic preprocessing such as direct current removal, baseline drift and 50Hz interference, and also can referto comprehensive preprocessing of parent electrocardio signals removal from abdominal wall electricity; (2) performing initial detection or pre-detection of R peaks on the read m channel electrocardiosignals X, and manufacturing m channel electrocardio signal QRS wave group template matrixwa XQRS = [xQRS1; xQRS2; ...; xQRSi; ...; xQRSm] on the basis of the initial detection of the R peaks; (3) solving a maximization problem (shown in the description) to obtain the most advantageous woptimized (line vector); (4) calculating y = woptimizedX, namely enhancing and outputting the signals.

Description

technical field [0001] The present application relates to a computer program-based method for enhancing synchronously recorded multi-channel ECG signals. [0002] In practice, there are scenarios where multi-channel ECG signals are recorded synchronously. For example, people often go to the hospital for a standard 12-lead resting ECG examination, which actually records 8 channels of human ECG signals simultaneously; The electrical signals of the abdominal wall of pregnant women in multiple channels, and sometimes one or several channels of electrical signals of the chest wall of pregnant women are recorded synchronously as a reference; conventional ECG monitors and dynamic electrocardiograms (Holter) are also more common in the case of synchronous recording of multi-channel ECG signals . [0003] Synchronous recording of multi-channel ECG signals, compared with only recording single-channel ECG signals, increases the cost of the acquisition system, but it makes it possible t...

AI Technical Summary

Problems solved by technology

[0011] The above common main multi-channel enhancement methods seem to be in principle not to directly pursue the highest signal quality and the strongest signal-to-noise ratio after transformation, so there are fundamental limitations.

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