Ultrasonic CT imaging process by measuring skeleton broad band ultrasonic attenuation

A CT imaging and ultrasound technology, applied in ultrasonic/sonic/infrasonic diagnosis, sonic diagnosis, infrasonic diagnosis, etc., can solve the problems of poor BUA directionality, large equipment volume, and large effective sound field diameter, achieving low cost and small size Effect

Inactive Publication Date: 2007-08-15
UNIV OF SCI & TECH OF CHINA
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of the traditional method are: 1. It can only measure the BUA value of the whole bone, and cannot reflect the point-by-point distribution of BUA in the bone; 2. The sound field emitted by the traditional ultrasonic probe has a diffraction effect, which gradually diverges during the propagation process. The diameter of the effective sound field becomes larger accordingly, so the directionality of BUA measurement is poor, which directly affects the resolution of detection imaging
However, it is well known that X-rays are harmful to the human body, and the cost of measurement is high, the equipment is large in size, requires ultra-high voltage power supply, and cannot be carried at all.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ultrasonic CT imaging process by measuring skeleton broad band ultrasonic attenuation
  • Ultrasonic CT imaging process by measuring skeleton broad band ultrasonic attenuation
  • Ultrasonic CT imaging process by measuring skeleton broad band ultrasonic attenuation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The specific embodiments of the present invention will be described below in conjunction with the drawings. First, the arbitrary waveform generator [1] outputs the set waveform, which is amplified by the high-frequency broadband amplifier [2] as an excitation signal to drive the annular ultrasonic transmitter sensor [3] to emit non-diffracted ultrasonic pulse waves. The non-diffracted ultrasonic pulse beam penetrates the bone [4] and is converted into a receiving signal by the ultrasonic receiving sensor [5] (ie receiving probe [5]), and the receiving signal passes through the receiving high-frequency amplifier and analog-to-digital (A / D) converter [6] becomes a digital signal, and then is converted into a BUA projection signal by the data processing and BUA calculation unit [7], and finally the BUA slice image unit is reconstructed by the BUA slice image unit [8], and the BUA slice image of the bone is reconstructed by the CT imaging algorithm. In addition, in order to mee...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an ultrasonic CT imaging method of bone broad-band attenuation (BUA) detected by non-diffraction ultrasound, which is characterized by the following: adopting non-diffraction ultrasonic field as launching field to pierce bone; obtaining BUA parameter through fitful mathematical and physical method; reconstructing BUA cut image of bone through CT imaging technique; selecting Bessel ultrasonic field or X-wave ultrasonic field as non-diffraction ultrasonic field; improving imaging distinguishability with low cost effectively.

Description

Technical field: [0001] The invention belongs to the application field of medical ultrasound, and measures the density of bone (mineral) based on the absorption characteristics of the bone to ultrasonic waves, and realizes tomographic imaging of the bone broadband ultrasonic attenuation (BUS). Background technique: [0002] Osteoporosis (Osteoporosis, referred to as: OP) is a problem commonly faced by the elderly. Since there is no effective and safe method to cure OP, timely and accurate early diagnosis of OP has become a research hotspot in various countries. The main indicator that reflects OP syndrome is bone mineral density (Bone mineral density, referred to as: BMD). At present, the use of Quantitative Ultrasonic technique (Quitative Ultrasonic technique, referred to as: QUS) to detect bone (mineral) density is a non-invasive and innovative technology. QUS is the use of broadband ultrasound attenuation (Broadband ultrasound attenuation, referred to as: BUA) changes to refle...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/13A61B8/00
Inventor 彭虎郑驰超
Owner UNIV OF SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap