Super-resolution flow field reconstruction method and device

Abstract

The present application provides a super-resolution flow field reconstruction method, which includes: superimposing multiple frames within a time interval that respectively include images of multiple microbubbles to obtain a superposition of multiple imaging trajectories including multiple microbubbles image; performing straight line fitting on the plurality of imaging trajectories respectively to obtain a plurality of imaging trajectory straight lines of the plurality of microbubbles; according to the direction and length of the imaging trajectory straight lines of the plurality of microbubbles and the multi-frame Determining the direction and speed of the instantaneous movement of the plurality of microbubbles corresponding to the time interval by superimposing the frame number and frame rate of the contrast image; and determining the instantaneous movement of the plurality of microbubbles in different time intervals respectively The direction and speed of the super-resolution flow field can be reconstructed, avoiding the tracking and positioning of multiple microbubbles in motion, overcoming the influence of microbubble motion artifacts and the interference of microbubble positioning noise, and improving the accuracy of super-resolution flow field reconstruction. precision and efficiency.

Description

technical field [0001] The present application relates to the technical field of ultrasonic imaging, and specifically relates to a super-resolution flow field reconstruction method, a super-resolution flow field reconstruction device, electronic equipment, and a computer-readable storage medium. Background technique [0002] Functional parameters such as blood flow velocity and blood flow direction are of great significance in disease diagnosis. Ultrasonic Doppler technology is widely used in clinical blood flow functional imaging due to its safety, non-invasiveness, and low cost. However, the resolution of traditional Doppler technology is limited by the diffraction limit. On the basis of microbubble perfusion, through the combination of sparse microbubble positioning and accumulation, the nearest neighbor matching pursuit strategy is used to perform super-resolution reconstruction of blood flow velocity and flow direction functional maps, which breaks through the limitatio...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present application provides a super-resolution flow field reconstruction method, a super-resolution flow field reconstruction device, electronic equipment, and a computer-readable storage medium, which overcome the microbubble motion artifacts in the tracking and positioning process of the existing reconstruction methods. The influence of shadows and the interference of microbubble positioning noise improve the accuracy and efficiency of super-resolution flow field reconstruction

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