Ultrasonic tomography method and device based on space-time array super-resolution inversion imaging

Abstract

The invention provides an ultrasonic tomography method and device based on space-time array super-resolution inversion imaging. Time delay and attenuation information of ultrasonic propagation are utilized for fast imaging, a method of one-time program-controlled scanning and background on-demand chromatography is adopted, and an ultrasonic probe is driven by a mechanical automatic scanning deviceto use a spatial multi-array to acquire point region reflection waveform data of all scanning points on different time slots according to a certain path, and then reflection strength in the depth ofeach scanning point is subjected to inversion calculation according to the principle of super-resolution imaging, and three-dimensional global information is obtained. A user performs chromatography on demand, and obtains the local shape and cross section from the three-dimensional global information to obtain local detailed imaging. The ultrasonic tomography device can obtain high-resolution imaging without scanning global 360 degrees in different directions. The program-controlled fixed path scanning is used, manpower is liberated, and standardized detection data is easily generated; no damage is caused, and high security is achieved; and low environmental requirements are achieved, equipment is compact, the price is low, and popularization and use are easy.

Description

technical field [0001] The present invention mainly relates to an ultrasonic imaging device and method, in particular to an ultrasonic tomography method and device based on space-time array super-resolution inversion imaging. Background technique [0002] Tomography (Computed Tomography, CT for short) technology refers to the technology of reconstructing the internal (cross-section) information of the object through the data detected from the outside of the object, also called computer-aided tomography (tomography) technology, mainly Used in the medical field. This technology uses X-ray beams, γ-rays, ultrasonic waves, etc., together with highly sensitive detectors, to scan a certain part of the human body one by one. It has the characteristics of fast scanning time and clear images, and can be used for the treatment of various diseases examine. According to the different rays used, it can be divided into: X-ray CT (X-CT), ultrasound CT (UCT) and γ-ray CT (γ-CT). [0003]...

AI Technical Summary

Problems solved by technology

Since X-rays propagate at the speed of light, the propagation delay time is extremely short, and different objects absorb light differently, resulting in different degrees of energy attenuation. Therefore, it is impossible to image with time-delay information, and can only rely on absorption and attenuation related parameters. scanning imaging

For the attenuation of different positions (voxels), the attenuation of each voxel can only be calculated through the global 360-degree scanning information in different directions.

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