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A pulse wave transmission rate detection method and system based on image ghosting

A technology of transmission rate and detection method, which is applied in the field of medical signal processing, can solve problems such as inaccurate detection results, and achieve the effects of improving detection accuracy, less sampling samples, and obvious amplitude changes

Active Publication Date: 2017-05-03
浙江慧勤医疗器械有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a pulse wave transmission rate detection method and system based on image ghosting in order to overcome the defect of inaccurate detection results in the above-mentioned prior art, and to use image ghosting technology for PWV detection

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  • A pulse wave transmission rate detection method and system based on image ghosting
  • A pulse wave transmission rate detection method and system based on image ghosting
  • A pulse wave transmission rate detection method and system based on image ghosting

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Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0049] Such as figure 1 , figure 2 As shown, a pulse wave transmission rate detection system based on image ghosting includes two parts: a data acquisition module 1 and a host computer 2 . The data acquisition module 1 is used to collect ECG signals and pulse wave signals, and includes three units, namely a sensor unit 11, a signal conditioning unit 12 and an AD conversion unit 13; the host computer 2 containing virtual instruments includes three processing modules, respectively It is a preprocessing module 21 , a peak detection module 22 and an image superimposition module 23 .

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Abstract

The invention relates to a pulse wave transmission velocity detecting method and system based on image foldover. The method comprises the steps of acquiring an electrocardiosignal and a pulse wave signal; after pretreatment and period position identification, extracting multiple corresponding period sequences; acquiring the peak position feature of the period sequences of each signal, and obtaining the position of each period sequence according to the peak position features; aligning the start points of all the period sequences of the electrocardiosignal and the pulse wave signal according to the peak position features based on image foldover, obtaining a single-period-sequence waveform after the values of corresponding positions of the aligned period sequences are superimposed, obtaining the power spectrum peak of the single-period-sequence waveform, taking the time corresponding to the power spectrum peak of the electrocardiosignal and the pulse wave signal as pulse wave transmission time PTT, and obtaining pulse wave transmission velocity PWV. Compared with the prior art, the method and system have the advantages that measurement time is short, and PWV detection precision is high.

Description

technical field [0001] The invention relates to the field of medical signal processing, in particular to a pulse wave transmission rate detection method and system based on image ghosting. Background technique [0002] Pulse Wave Velocity (PWV) refers to the rate at which the pulse wave propagates from one specific position of the artery to another specific position. Increased arterial stiffness, an index of arterial elasticity and expandability, will increase the PWV value, while weakening arterial elasticity will decrease the PWV value. So by measuring the PWV value, we can estimate the elasticity and distensibility of arteries. The PWV value is also a very useful non-invasive indicator, making it possible to detect and diagnose a variety of vascular diseases such as arteriosclerosis, hypertension, hyperlipidemia, diabetes and kidney disease early. [0003] The detection of arteriosclerosis has been paid more and more attention by the medical community. The detection res...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/0285A61B5/0265
Inventor 黄祖良邓琛张琴舜费冬冬
Owner 浙江慧勤医疗器械有限公司
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