A Method for Assessing Arterial Elastic Function Based on Pulse Waves of Arm Position Changes

A technology of arterial elasticity and pulse wave, applied in the field of signal analysis, can solve problems such as difficult measurement and complicated operation, achieve high accuracy, simple and easy operation, and eliminate the effect of individual differences

Active Publication Date: 2020-12-08
SHANDONG UNIV
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Problems solved by technology

[0005] In order to solve the deficiencies in the prior art, the present invention discloses a method for evaluating arterial elastic function based on the pulse wave of the arm position change. The method is simple and convenient to operate, and is easy to be applied clinically. and so on

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  • A Method for Assessing Arterial Elastic Function Based on Pulse Waves of Arm Position Changes
  • A Method for Assessing Arterial Elastic Function Based on Pulse Waves of Arm Position Changes
  • A Method for Assessing Arterial Elastic Function Based on Pulse Waves of Arm Position Changes

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Embodiment Construction

[0030] The present invention is described in detail below in conjunction with accompanying drawing:

[0031] Arteriosclerosis can harden, shrink, and lose elasticity of the blood vessel wall, and then form thrombus. Since the width of the human pulse signal is negatively correlated with the degree of arteriosclerosis, that is, when the degree of arteriosclerosis is high, the speed of pulse rise and fall is faster than that of hardened arteriosclerosis. Blood vessels with a low degree of fastness show that the width of the pulse signal is narrowed, and its measurement method is simple and easy without trauma. The difference between the width value of the pulse signal at 60% and the position change is the most obvious, so this application The width value of the waveform at 60% of the peak value is used as one of the indicators for judging the performance of the arterial wall.

[0032] The velocity of the arterial wave propagating along the arterial wave depends on the elasticity...

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Abstract

The invention discloses a method for evaluating an arterial elastic function through pulse waves on basis of arm position variation. The method comprises the following steps: taking an arm of a subject as a reference arm; taking the other arm as a moving arm; synchronously measuring pulse signals of radial arteries of the two arms; recognizing collected signals by using signal analysis software; for the pulse signal at each testing position of each subject, intercepting pulse signals in set periods according to the starting point, and respectively performing normalization processing on the signals in the set periods; calculating the width of a waveform at the peak of a set percentage of the normalized pulse signals; taking the other arm of the subject as a reference arm for performing the same operation; calculating and analyzing the mean and variance of the peak width of the set percentage in two rounds of repeated experiments of each subject, and quantizing the waveform change conditions of the pulse signals in different positions of the arm, so that the arterial elastic function can be accurately evaluated according to the waveform variation.

Description

technical field [0001] The invention relates to the field of signal analysis, in particular to a method for evaluating arterial elastic function based on pulse waves of arm position changes. Background technique [0002] Arteries play an important role in cardiovascular physiology and pathophysiology. Arteries have a natural elasticity that reflects changes in arterial performance under different pressures. The elastic properties of arteries are related to many clinical and physiological factors, among which arterial volume compliance is a typical parameter to quantitatively measure arterial elasticity. The current methods for assessing arterial elastic function mainly use non-invasive methods, which are obtained by changing the pressure of blood vessels to obtain corresponding changes in blood vessel volume. However, due to the continuous change of the measurement diameter, it is impossible to use a direct measurement method with a relatively accurate measurement. [000...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/02
CPCA61B5/02A61B5/02007A61B5/7235
Inventor 魏守水江兴娥徐晓艳
Owner SHANDONG UNIV
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