Hemodynamics and signal analysis system and method of carotid arterial system

Abstract

The invention provides a simple and convenient method and a simple and convenient system for evaluating hemodynamic indexes and characteristic parameters of a blood signal of a carotid arterial system through non-invasive detection on blood pressure of brachial arteries and an axial blood velocity signal of a common carotid artery. The method comprises the following steps: detecting the waveform and a numerical value of an axial blood velocity of the common carotid artery by using a continuous Doppler blood velocity waveform detecting module, detecting diastolic pressure and systolic pressure of a human body by using an arm-type electronic blood pressure detecting module, and then calculating hemodynamic parameters of the carotid arterial system by a simplified method; and selecting Morlet mother wavelet for wavelet analysis on the waveform of the blood velocity of the common carotid artery, and calculating the characteristic parameters of the blood signal. The method is an analysis method which combines the hemodynamic principle and wavelet transformation; compared with the method adopted by the conventional cerebral hemodynamic analysis device, the signal acquisition and analysis method is simpler; and to a great extent, the defects that the conventional analysis device is complicated in structure, huge in volume, complex in operation, high in price and the like are overcome.

Description

technical field [0001] The invention belongs to a medical detection method and system, and relates to a non-invasive early diagnosis method for cerebrovascular diseases, in particular to a carotid system hemodynamics and signal analysis method and system, which is based on blood pressure and common carotid artery blood Non-invasive detection of flow velocity signals, an analysis method and system for early assessment of common carotid artery blood flow signals and cerebrovascular hemodynamic function by combining classical hemodynamic theory with modern signal analysis techniques. Background technique [0002] Cerebrovascular diseases, especially cerebral apoplexy, have the characteristics of high morbidity, disability, mortality and recurrence, and many complications. According to the results of a national survey in 2008, the incidence of stroke in my country is about twice that of the United States, with an average of 6.5 million patients and 1.2 million new patients every...

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Problems solved by technology

Due to the adoption of a simpler signal acquisition and analysis method than the existing cerebral hemodynamics analysis device, it can overcome the defects of the existing device such as complex structure, bulky volume, complicated operation, and high price

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