Microwave CT device

A technology of microwave and microwave tubes, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as visual impairment of staff, human radiation hazards, skin burns, etc., and achieve high safety, low cost, and strong adaptability Effect

Inactive Publication Date: 2014-05-21
HUNAN NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although these CTs have their own advantages, there are obvious disadvantages, such as radiation hazards to the human body. It is found that the use

Method used

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Embodiment Construction

[0025] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the patent of the present invention will be further elaborated below in conjunction with specific illustrations.

[0026] like Figure 1 to Figure 6 As shown, the microwave CT device is fixed on the scanning frame 4, and the scanning frame can also translate and rotate in addition to being fixed. The scanning part is composed of power supply 1, microwave tube 2, waveguide 3, μ detector 5, and α detector 6; the microwave tube generates microwave frequencies in the range of 8-20 GHz (2πf=ω) suitable for biological tissue imaging. The microwave is used to scan a certain part of the measured object at a certain thickness. The structural design enables the scanning methods to be translation / rotation, rotation / rotation, rotation / fixation and spiral. The specific use is from easy to difficult. The detector receives and detects the penetration value...

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Abstract

The invention discloses a microwave CT device. A certain part of a measured object is scanned according to the level with a certain thickness by microwave; a detector receives and detects a permeability value mu and an attenuation value alpha of the microwave passing through the level of an organism; an analogue/digital converter converts the permeability value mu and the attenuation value alpha into numbers, inputs the numbers into a computer system, and performs storage computation and processing on the collected information data obtained by scanning, that is the selected level is divided into a plurality of voxels with the same volume; the dielectric constant epsilon and the conductivity rho of each voxel obtained by calculating are arranged into a matrix, and are stored in a magnetic disk or an optical disk; each number in the number matrix is converted into small blocks with different gray levels from black to white, namely pixels, by a comparison enhancer and a digital/analogue converter, and the blocks are arranged in a matrix manner, namely a number matrix; a microwave CT image is formed after the number matrix is processed. According to the microwave CT device disclosed by the invention, the resolution capacity is high and the image is not damaged; the microwave CT device has high safety, low cost, easiness in popularization and high adaptability, and can be widely applied to medical clinical imaging and other fields.

Description

technical field [0001] The invention relates to a microwave CT imaging technology, in particular to a device capable of realizing microwave CT low-power detection and imaging of tissues such as muscles and fats in soft tissues that have significantly different permeability and attenuation to microwaves. Background technique [0002] At present, the field of medical clinical imaging mainly includes X-ray CT, nuclear magnetic resonance CT and ultrasonic CT. Although these CTs have their own advantages, there are obvious disadvantages, such as radiation hazards to the human body. It is found that the use of X-rays can cause hair loss in patients, skin burns, visual impairment of staff, leukemia and other radiation injuries; it is also expensive, etc. . This microwave CT device of the present invention has following advantage compared with X-ray CT, nuclear magnetic resonance CT, ultrasonic CT: 1, because the absorption of microwave mainly depends on the electrical conductivity...

Claims

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Application Information

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IPC IPC(8): A61B5/00
Inventor 彭沛夫张桂芳刘林唐蛟王开泓伍颖
Owner HUNAN NORMAL UNIVERSITY
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