Magnetic, acoustic and electric imaging system and imaging method

Abstract

The invention discloses a magnetic, acoustic and electric imaging system and an imaging method. The system comprises an excitation source, a synchronization trigger control module (1), a water tank (7), a three-dimensional scanning platform and a signal detection system; the excitation source produces induced electromotive force in a sample to be detected; the synchronization trigger control module (1) synchronizes and controls the excitation source, the three-dimensional scanning platform and the signal detection system; decoupling plasma water or an insulation oil solution is accommodated in the water tank; the three-dimensional scanning of an ultrasonic transmitting probe is realized by the three-dimensional scanning platform; the signal detection system detects weak electric signals; and the excitation source is controlled by the synchronization trigger control module (1) to produce the induced electromotive force in the sample to be detected. By the transmission mode of ultrasonic waves in the sample to be detected, the combined action area of an acoustic source and a static magnetic field can be accurately positioned, and the electric current density of every moment is acquired by a gradual progressive mode by a time progressive method, so that the information of the electric current density of the whole acoustic wave spreading path can be acquired.

Description

technical field [0001] The invention relates to an electrical impedance imaging system and method, in particular to a medical magnetoacoustic electrical electrical impedance imaging system device and method. Background technique [0002] Magnetoacoustoelectric imaging is a new type of medical imaging method with good application prospects, and its imaging features have both high resolution and high contrast. The imaging principle is to inject a beam of ultrasonic waves into the imaging body, and the local ions in the imaging body vibrate with the propagation of the ultrasonic waves. The vibrating ions are subjected to the Lorentz force under the action of the static magnetic field, causing charge separation, and then forming The local electric field, which is a new type of electrical impedance imaging, detects electrical signals through receiving electrodes attached to the imaging body or receiving coils that are not in contact with the imaging body to reconstruct electrical...

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Problems solved by technology

[0004] (1) Traditional electrical impedance imaging applies an electric field through electrodes. Due to the at

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