Method, device, storage medium and equipment for calculating central hemodynamic index
A hemodynamics and computing center technology, applied in the field of biomedical engineering, can solve problems such as the influence of the accuracy of calculation results and the factors that do not consider the influence of transfer functions, so as to improve applicability and flexibility, fast calculation speed, and small calculation amount Effect
Active Publication Date: 2020-06-19
北京动亮健康科技有限公司
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However, this model does not take into account the influence of the transfer function, which can have a very large impact on the accuracy of the calculation results
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[0052] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0053] According to one aspect of the present invention, a method for calculating central hemodynamic indexes is provided, comprising the following steps, such as figure 1 Shown:
[0054] 1. Use the collected brachial artery blood pressure to calibrate the collected radial artery pulse wave signal to obtain the radial artery pressure waveform;
[0055] 2. According to the pressure waveform of the radial artery, the linear regression model is used to predict the waveform shape of the central artery;
[0056] 3. According to the shape of the central artery waveform, select the transfer function between the corresponding radial artery pressure waveform and the central artery pressure waveform, and use the radial artery pulse wave signal to reconstruct the central artery pressure waveform according to the transfer function;
[0057] 4. Calculate the central hemodynamic...
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The invention provides a method, a device, a storage medium and equipment for calculating central haemodynamic indexes. The method for calculating the central haemodynamic indexes comprises the following steps: calibrating an acquired radial artery pulse wave signal by utilizing acquired brachial artery blood pressure to obtain a radial artery pressure waveform; according to the radial artery pressure waveform, predicting a central artery waveform form by utilizing a linear regression model; according to the central artery waveform form, selecting a corresponding transmission function betweenthe radial artery pressure waveform and a central artery pressure waveform, and according to the transmission function, reconstructing the central artery pressure waveform by utilizing the radial artery pulse wave signal; and calculating the central haemodynamic indexes according to the central artery pressure waveform. The method provided by the invention has the advantages that haemodynamic indexes such as central arterial pressure can be acquired by only extracting a radial artery pulse wave, the radial artery pulse wave is relatively stable and is easy to extract, and no potential safety hazard exists during testing of human body.
Description
technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to a method, device, computer-readable storage medium, computer equipment and computer program product for calculating central hemodynamic indexes. Background technique [0002] Central arterial pressure refers to the pressure that the central aortic root bears on the blood vessel wall per unit area. Studies have shown that central arterial pressure can accurately reflect the load on the left ventricle, coronary arteries and cerebrovascular. In the meta-analysis by Vlachopoulos et al., it was shown that for every 10 mmHg increase in central arterial systolic blood pressure (SBP), the overall risk of cardiovascular events increased by 8.8%. Therefore, accurate measurement of central arterial pressure is of great significance for the prevention and treatment of cardiovascular diseases. [0003] Clinically, methods for measuring central arterial pressure are divided in...
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IPC IPC(8): G16H50/50
Inventor 叶骏杨剑郭桥赵鹏
Owner 北京动亮健康科技有限公司