Specific conductance imaging system, specific conductance imaging method and storage medium

Abstract

The embodiment of the invention provides a specific conductance imaging system and method and a storage medium. The specific conductance imaging system comprises an electric current forming device, amagnetic field generating device, and an ultrasonic detecting device, wherein the electric current forming device is used for exerting an excitation signal to an object to be detected to form a dynamic current in a target position of the object to be detected; the magnetic field generating device is used for generating a first magnetic field; the first magnetic field is used for performing actionwith the dynamic current to produce Lorent force at the target position; the ultrasonic detecting device is used for transmitting an ultrasonic detecting signal to the target position, receiving a corresponding echoed signal, and performing specific conductance image reconstruction based on a first echoed signal segment in the echoed signal to obtain specific conductance distribution images of thetarget position; and the first echoed signal segment is a signal segment obtained in a time period when the excitation signal and the first magnetic field exist. According to the specific conductanceimaging system disclosed by the invention, a manner of actively transmitting ultrasounds is adopted, so that the vibration in tissue can be actively detected, increasing the detection accuracy is facilitated, and deeper detection depth can be obtained.

Description

Technical field [0001] The present invention relates to the field of medical imaging technology, and more specifically to a conductivity imaging system, a conductivity imaging method and a storage medium. Background technique [0002] There are a large number of inorganic ions in human tissues, which are dispersed in body fluids, blood, and intracellular fluids, which are macroscopically expressed as electrical parameters such as electrical impedance, electrical conductivity, and dielectric constant of the tissue. A large number of studies have found that the physiological and pathological changes of human tissues will cause changes in the electrical properties of the tissues. The electrical conductivity of human tissues is significantly different between normal tissues and diseased tissues, such as breast tissue, liver tissue, and prostate tissue. Measuring the electrical properties of tissues can provide information for early disease diagnosis and has important clinical value....

AI Technical Summary

Problems solved by technology

The existing technology needs to use the velocity of the particle vibration inside the tissue (particle vibration velocity) when reconstructing the sound source distribution. This velocity cannot be known by measuring the longitudinal wave (ie, the ultrasonic signal received passively), and it needs to be assumed, which will affect the conductance. rate detection accuracy

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