Ultra high speed ultrasonic imaging device and method based on central processing unit (CPU) + graphic processing unit (GPU) isomeric framework

Abstract

The invention discloses an ultra high speed ultrasonic imaging device and method based on a central processing unit (CPU) + a graphic processing unit (GPU) isomeric framework. An FPGA control probe transmits multi-angle plane wave ultrasonic signals to biological texture to be detected and conducts analog-to-digital conversion and pre-amplification on received data. A large amount of data subjected to preprocessing are transferred into a CPU through a high speed PCI e channel. Data beam forming is achieved in the CPU, and functions like human-computer interaction are achieved. GPU reads data in the inner storage of the CPU, and utilizes the parallel calculation capability and variable frame rate plane wave composite technology to combine and demodulate signals to further achieve super speed imaging. By means of the device and the method, the high-integrity transmitting and receiving scheme and the unified data collection framework are adopted to simplify the front end, the beam forming module is moved to the rear end, the front end is further simplified, the rear end processing capability is fully utilized, and the system performance is improved.

Description

technical field [0001] The invention belongs to the field of ultrasonic imaging, and relates to an ultra-high-speed ultrasonic imaging device and an imaging method based on a CPU+GPU heterogeneous architecture on the basis of multi-angle plane wave emission. Background technique [0002] The traditional ultrasonic imaging system, regardless of B mode, Color mode or PW mode, uses multi-array elements to transmit pulse waves, uses delay to control the transmission focus, and receives echo signals to generate a scan line data through beam synthesis; switching Multiple echo data are obtained from different transmitting and receiving channels to form an image. This line-to-line focusing mode makes it take a relatively long scanning time for traditional ultrasonic imaging to obtain an image. Taking full-step scanning as an example, a 128-element ultrasonic transducer is used to scan a depth of 6 cm to form a frame of image It takes 0.01 seconds, increase the scanning depth, and t...

AI Technical Summary

Problems solved by technology

[0004] The advantages of ultra-high-speed ultrasound are obvious, but its fast data acquisition leads to high complexity of back-end data processing and a large amount of data

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