A code-enhanced focused ultrasound bone tissue microstructure detection method in a bone ultrasound system

A technology of ultrasonic system and detection method, which is applied in ultrasonic/sonic/infrasonic diagnosis, acoustic diagnosis, infrasonic diagnosis, etc. It can solve the problems of insufficient resolution, low frequency of detection technology, inability to effectively deal with a large amount of sound attenuation and noise in tissues, etc. Achieve the effect of improving robustness and reducing impact

Active Publication Date: 2016-05-18
哈尔滨工业大学人工智能研究院有限公司
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Problems solved by technology

[0005] In order to solve the problems of low frequency, insufficient resolution, and inability to effectively deal with a large amount of sound attenuation and noise in the tissue in the existing detection technology, the present invention provides a method for detecting the microstructure of bone tissue by focused ultrasound with code enhancement in the bone ultrasound system

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  • A code-enhanced focused ultrasound bone tissue microstructure detection method in a bone ultrasound system
  • A code-enhanced focused ultrasound bone tissue microstructure detection method in a bone ultrasound system
  • A code-enhanced focused ultrasound bone tissue microstructure detection method in a bone ultrasound system

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[0033] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0034] The code-enhanced focused ultrasound bone tissue microstructure detection method adopts the ultrasonic backscatter detection method, a single ultrasonic transducer is used, the measurement environment is water immersion measurement, and the detection object is the equivalent model MSS that can characterize the bone tissue microstructure characteristics. Equivalent models such as figure 1 As shown, firstly, scan and three-dimensionally reconstruct the microstructure of cancellous bone using micro-CT, and obtain the distribution information of bone...

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Abstract

The invention discloses a coding-enhanced focused ultrasound bone tissue microstructure detection method in a bone ultrasound system. The method includes the following steps: 1, adopting an ultrasound back scattering detection method, and enabling detection of a bone tissue microstructure to be equivalent to measuring of average scatterer interval according to a Faran cylinder model; 2, adopting a high-frequency single-array-element focused transducer, utilizing a complementary Golay sequence pair to excite an ultrasound transducer to emit time width signals, taking the emitted signals as a matched filtering function perform decoded compression on echo signals, and utilizing decoded compression back scattering signals to estimate the average scatterer interval, wherein the Golay sequence pair is adjustable in length. By the method, during measuring of the bone tissue microstructure MSS by utilizing ultrasound back scattering technology, ultrasound resolution ratio is increased, and influence, of sound attenuation, on measuring results is reduced. The coding-enhanced focused ultrasound bone tissue microstructure detection method is applied to the field of biomedical detection and tissue characterization.

Description

technical field [0001] The invention relates to a bone tissue microstructure detection method in a bone ultrasound system, in particular to a code-enhanced focused ultrasound bone tissue microstructure detection method. Background technique [0002] Biological tissues are mainly composed of periodically arranged collagen fibers, which can be equivalent to periodically distributed scatterers. Based on this, many existing models are used to characterize biological tissues, such as liver disease, blood vessel thickness, and bone trabecular spacing. Diagnosis of tissue disease is made by measuring the Mean Scatterer Spacing (MSS). [0003] Ultrasonic backscattering techniques have been proven to be effective in measuring MSS. Biological tissue backscatter signals include coherent components from regular scatterers and incoherent components from diffuse scatterers. The measurement of MSS mainly utilizes the coherent scatter component, while the diffuse scatter component interf...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
Inventor 沈毅潘文磊金晶王艳章欣
Owner 哈尔滨工业大学人工智能研究院有限公司
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