Heart disease automatic classification system based on heart sound analysis and heart sound segmentation method

An automatic classification, heart disease technology, applied in the fields of medical science, auscultation instruments, diagnosis, etc., can solve the problems of inaccurate segmentation boundaries and high segmentation error rate.

Inactive Publication Date: 2006-10-25
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology

This algorithm only performs segmentation according to the characteristics of the heart sound itself, without other...

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  • Heart disease automatic classification system based on heart sound analysis and heart sound segmentation method
  • Heart disease automatic classification system based on heart sound analysis and heart sound segmentation method
  • Heart disease automatic classification system based on heart sound analysis and heart sound segmentation method

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] refer to figure 1 , the heart sound automatic classification system based on heart sound analysis includes: a heart sound sensor 1, which is used to convert the heart sound vibration signal of the subject into an electrical signal for output, and the heart sound sensor 1 can be a microphone or a piezoelectric sensor; The computer 2 with multimedia function, it is connected with described heart sound sensor 1 by data acquisition card 21, the heart sound signal of the person under test that heart sound sensor 1 outputs is recorded and stored in storage unit; And, be installed in the described computer , the heart sound segmentation program, the CPU of the computer runs the heart sound segmentation program, accesses the heart sound signal in the storage unit, and divides the heart sound signal of a cardiac cycle into four sections: the first heart sound, systole, s...

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Abstract

The present invention relates to a heart disease automatic classification system based on heart sound analysis. It includes the following several portions: heart sound sensor, it is used for converting heart sound vibration signal of tested person into electric signal and outputting said electric signal; computer with multimedia function, it is connected with heart sound sensor by means of data acquisition card and can be used for recording the heart sound signal of tested person which is outputted by heart sound sensor and storing said signal in storage unit; and heart sound sectionalization program, heart sound characteristics extraction program and classification device which are mounted in the computer. Said invention also provides its working principle and its concrete operation method.

Description

technical field [0001] The invention relates to the field of automatic classification of heart disease, in particular to an automatic classification system for heart disease based only on heart sound analysis, which helps popularize heart sound auscultation in low-level hospitals and community medical care. Background technique [0002] Clinically, the use of new technologies such as echocardiography, color Doppler ultrasound, CT, and MRI enables doctors to obtain more direct and accurate diagnostic evidence than cardiac auscultation. However, because these devices are expensive, bulky and complicated to operate, they are not conducive to popularization in low-level hospitals and community medical care. [0003] On the other hand, heart sounds can effectively reflect the heart, especially the valve activity and blood flow conditions. For example, the closure of the atrioventricular valve is the main factor that produces the first heart sound, and the main component that prod...

Claims

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Application Information

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IPC IPC(8): A61B7/00
Inventor 叶大田陈萌辉郑燕娇
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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