Device and method for sliding type multi-layer magnetic induction tomography

A tomography and magnetic induction technology, applied in the field of sliding multi-layer magnetic induction tomography imaging devices, can solve the problems such as no reports on multi-layer magnetic induction tomography methods.

Active Publication Date: 2013-04-10
FOURTH MILITARY MEDICAL UNIVERSITY
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Problems solved by technology

[0004] Existing magnetic induction tomography is aimed at the imaging of a certain fixed slice, for example, the Chinese patent with the application number 200510042937.6 and the title of the invention is "Monitoring Method of Non-contact Magnetic Induction Brain Conductivity Distribution Change"; the application number is 200710092746.X, The Chinese patent with the title of invention "A hig

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  • Device and method for sliding type multi-layer magnetic induction tomography
  • Device and method for sliding type multi-layer magnetic induction tomography
  • Device and method for sliding type multi-layer magnetic induction tomography

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[0040] The present invention will be further described in detail below in conjunction with specific embodiments, which are for explanation rather than limitation of the present invention.

[0041] See Figure 1 ~ Figure 7 , A sliding type multilayer magnetic induction tomography imaging device, comprising a flat plate, the object to be measured is placed on the flat plate, the excitation measurement coil array surrounds the object and the flat plate, and the centers of each coil of the excitation measurement coil array are coplanar;

[0042] The excitation measurement coil array and the plate can move relative to each other, the excitation measurement module is connected with the excitation measurement coil array, and the excitation measurement module sends the detection data to the control unit;

[0043] When the excitation measurement coil array completes a magnetic induction tomography data acquisition on a certain slice of the measured object, the control unit reconstructs the co...

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Abstract

The invention discloses a device and a method for sliding type multi-layer magnetic induction tomography. According to the method of sliding type multi-layer magnetic induction tomography, a measured object is put on a plate, a measuring coil array is driven to surround the measured object and the plate, the coil array can slide on the plate so that the central surface of the coil array is corresponding with different faults of the object, one magnetic induction tomography data collection is carried out when the coil array is corresponding with one fault of the object, the conductivity distribution map of the object at the fault is rebuilt through imaging algorithm, data collection can be carried out for a plurality of times by sliding the coil array or plate and a conductivity distribution map at the fault is rebuild each time, a plurality of conductivity distribution maps of the object at adjacent faults are obtained though a plurality of times of data collection and maps rebuilding, and the overall conductivity distribution condition of the object is obtained. The device and the method for sliding type multiple layer magnetic induction tomography has the advantages that conductivity distribution maps of the measured object at different faults are obtained conveniently, and multiple layer non-contact electrical impedance tomography is achieved.

Description

technical field [0001] The invention belongs to the technical field of electrical impedance tomography, and relates to a sliding multilayer magnetic induction tomography device and method. Background technique [0002] Electrical impedance is a measure of the passive electrical properties of matter. The traditional electrical impedance measurement method is to calculate the electrical impedance by respectively applying an excitation signal and measuring a response signal to a pair of electrodes in contact with the measured object. Using this basic principle, a distribution image of electrical impedance is formed by stimulating measurement data at multiple locations, and its typical representative is electrical impedance tomography. According to the principle of electromagnetic induction, alternating eddy currents of the same frequency will be induced inside the volume conductor in the alternating magnetic field, and the nature of the eddy current is directly related to the ...

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Application Information

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IPC IPC(8): G01V3/10
Inventor 董秀珍刘锐岗付峰尤富生史学涛季振宇王雷杨滨徐灿华代萌王楠
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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