Blood pressure evaluation method based on nonlinear analysis of pulse wave velocity

A non-linear analysis and conduction velocity technology, applied in vascular assessment, cardiac catheterization, etc., it can solve the problems of undifferentiated object input, blood pressure assessment limitation, low fitting accuracy, etc., to achieve wide applicability, improve accuracy, and experimental cost. low effect

Active Publication Date: 2019-05-10
SHANGHAI UNIV
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  • Application Information

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Problems solved by technology

The linear model is relatively simple in formula, but the fitting accuracy is not high, and the applicability is not strong
A single nonlinear model has higher fitting accuracy than linear in some cases, but its applicability is not strong, and its characteristics cannot be input for different objects
[0003] In summary, the current linear model or a single nonlinear model still has great limitations and deficiencies in blood pressure assessment

Method used

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  • Blood pressure evaluation method based on nonlinear analysis of pulse wave velocity
  • Blood pressure evaluation method based on nonlinear analysis of pulse wave velocity
  • Blood pressure evaluation method based on nonlinear analysis of pulse wave velocity

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Experimental program
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Effect test

Embodiment 1

[0041] refer to figure 1 , the blood pressure assessment method based on the non-linear analysis of pulse wave velocity, the operation steps are as follows:

[0042] (1) Design the human body PWV data collection experiment: collect the two pulse wave signals of the same finger through a specific device to calculate the human body PWV data.

[0043] (2) Preprocessing the PWV data of the human body: processing the PWV data sequence to remove data that is too small or too large due to errors or improper operations.

[0044] (3) Establishing a nonlinear model for evaluating blood pressure: obtaining the nonlinear model for evaluating blood pressure by analyzing and comparing linear and nonlinear models, and initializing parameters in the model at the same time.

[0045](4) Calibration optimization of the nonlinear model: two parameters related to the specific characteristics of different objects are introduced into the nonlinear model as calibration quantities to highlight the ch...

Embodiment 2

[0047] In this embodiment, the blood pressure assessment method based on the non-linear analysis of pulse wave velocity is carried out in the following steps:

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Abstract

The invention provides a blood pressure evaluation method based on nonlinear analysis of pulse wave velocity and belongs to the field of nonlinear analysis and medical treatment. The method includes the steps of acquisition of original data, processing of the original data, construction of a nonlinear model and calibration optimization of the nonlinear model. A method for extracting and processingthe original data is provided according to the close relationship between the pulse wave velocity of the human body and the blood pressure of the human body, and the nonlinear model and a calibrationprocess of the model are provided. The data measurement method has high portability and continuity and includes processing steps. After screening and fitting to establish a fitting curve, the precision of the nonlinear model is calibrated by means of two feature items, and the fitting precision and application of the nonlinear model are provided, so that a general blood pressure calculation modelwhich can be widely used is obtained.

Description

technical field [0001] The invention relates to the fields of nonlinear regression and medical detection, in particular to a blood pressure evaluation method based on nonlinear analysis of pulse wave velocity. Background technique [0002] Various diseases in today's life endanger people's health, and cardiovascular disease is one of the common diseases. While studying the cure of cardiovascular diseases, it is of great significance to explore the timely prevention and prediction of cardiovascular diseases. The physiological index of the human body closely related to cardiovascular disease is blood pressure, which is divided into systolic blood pressure, which is high pressure, and diastolic blood pressure, which is low pressure. Therefore, there is a necessary demand for research on the level of blood pressure and its changes. From a clinical point of view, invasive blood pressure measurement is the gold standard for measuring blood pressure values, and the common cuff bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/021
Inventor 李敏贺东赵绎涵杨浩南康文博车心泽
Owner SHANGHAI UNIV
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