Breathing signal acquisition system used for magnetic resonance coronary artery imaging

Abstract

The invention relates to a breathing signal acquisition system used for magnetic resonance coronary artery imaging. The breathing signal acquisition system comprises a pressure sensor, a gain amplifier, an analogue signal digital sampling module, a data processing module and a display module, wherein the pressure sensor is used for converting an abdominal pressure of an experimenter in a breathing process into an electric signal; the gain amplifier is used for performing gain amplification processing on the electric signal output from the pressure sensor; the analogue signal digital sampling module is used for outputting sampling data after converting the electric signal on which the gain amplification processing is performed into a digital signal; the data processing module is used for performing denoising processing on the sampling data and calculating an average value; and the display module is used for receiving data output from the data processing output and displaying an output breathing amplitude waveform in real time. The breathing signal acquisition system can realize a self-feedback breathing navigation gating-based improved magnetic resonance whole heart coronary artery imaging method.

Description

technical field [0001] The invention relates to medical equipment, in particular to a respiratory signal acquisition system for magnetic resonance coronary artery imaging. Background technique [0002] Coronary heart disease is a major disease that endangers human health. The annual medical expenses caused by it have exceeded 100 billion yuan, which brings a heavy economic burden to the country and the people. Cardiovascular disease has become an increasingly urgent major social public problem. If it cannot be effectively prevented and treated, it will affect the overall improvement of people's health quality and the rapid development of the national economy. Finding a truly non-invasive and X-ray-free method plays a very important role in the early diagnosis of coronary heart disease, risk stratification, treatment decision-making and efficacy evaluation. [0003] The clinical application of magnetic resonance imaging (MRI) is becoming more and more extensive, and it plays...

AI Technical Summary

Problems solved by technology

In this process, if only the respiratory navigation waveform on the machine operation interface is directly fed back to the subjects, it is often necessary to fully train them before the examination, which often presents certain difficulties for elderly patients with low education levels, and, Sometimes patients are unable to cooperate well due to nervousness

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