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A Multi-PWV Acquisition Method Based On- Peripheral Artery Waveform Analysis

Author: LiXiuLong
Tutor: SunZuoNing
School: University of Science and Technology of China
Course: Detection Technology and Automation
Keywords: Pulse wave velocity Waveform analysis ECG Phonocardiogram Arterial function assessment
CLC: TP274
Type: Master's thesis
Year: 2011
Downloads: 40
Quote: 2
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Abstract


Arterial waveform analysis of pulse wave velocity (PWV) measurement method has the advantages of non-invasive, simple, cheap, and widely used in clinical arterial stiffness assessment. Aortic pulse wave velocity (aoPWV) is a direct reflection of aortic stiffness is an independent predictor of cardiovascular disease, but it is difficult to direct access to waveform analysis method, the medical profession uses surface tension from superficial artery for carotid-femoral PWV (cfPWV ), brachial-ankle PWV (baPWV), the the heart shares of PWV (hfPWV) approximation instead aoPWV. Three indicators have applications both at home and abroad, but the differences of the three has not yet been well studied. Therefore necessary with other methods of the obtained three kinds of PWV aoPWV comparative analysis clearly reliability and scope of the measurement of the three. In order to achieve the above object, first developed the equipment, to achieve the synchronization acquisition of the three kinds of PWV. In response to this demand, we propose a non-invasive PWV get ideas based on peripheral arterial waveform analysis: synchronous acquisition of ECG, heart sound and multi-channel pulse wave signal using dedicated software accurately parse out the baPWV, hfPWV, cfPWV, developed a set of economic, practical multi-the PWV detection system, provide a basis for subsequent research experiment platform. Mainly to the completion of the work are as follows: (1) based on peripheral arterial waveform analysis PWV Acquisition Methodology. Analysis of the currently widely used the PWV noninvasive detector detection indicators PWV principle, explicit goal of our research program proposed based on peripheral arterial waveform analysis PWV get. (2) based on peripheral arterial waveform analysis PWV acquisition system hardware design. PWV analysis based on the peripheral arterial waveform acquisition system hardware design process carried out a detailed analysis and explanation. Elaborated pulse wave, ECG, heart sound generation mechanism, the method in accordance with their different characteristics corresponding signal acquisition hardware circuit design, the controller for the AD converter and CAN bus data communication. (3) based on peripheral arterial waveform analysis PWV acquisition system software design. Details of the peripheral arterial waveform analysis PWV acquisition system the lower machine software and PC software design. Lower computer software hardware initialization, measurement control, data acquisition and data communication, the host computer to manage users, and to accept the data and analysis, processing, preservation, calculate various PWV indicators, interactive interface to achieve control of measurement processes and parameters waveform display. (4) obtain multi-PWV PWV system applied research using this design to get a preliminary experimental study of peripheral arterial waveform analysis. Elaborated the present system to obtain a the baPWV, CFPWV, the principle of hfPWV and a design process is given the the experimental synchronization acquisition of the signal waveform, and for deriving the three PWV calculation results.

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