Novel intravascular ultrasonic imaging capture card and ultrasonic imaging system

Abstract

The invention provides a novel intravascular ultrasonic capture card and an ultrasonic imaging system. The capture card comprises an analog front end, an analog-digital conversion device, an FPGA, a power supply and a random access memory. The functions of the FPGA adopted by the ultrasonic capture card include capture control logic, impulse control logic, servo mechanism control logic and access timing sequence and time gain compensation logic. The capture card can achieve ultrasonic excitation and ultrasonic echo signal acquisition, caching, processing and transmission. Furthermore, due to the adoption of FPGA chips integrated with an interface of a PCI-Express bus, the number of chips and the number of lines of a plated circuit are reduced, and the integration level and reliability of the capture card are improved. Due to the interaction between the PCI-Express bus and an upper computer, the performance of the ultrasonic imaging system can well meet current requirements.

Description

technical field [0001] The invention relates to the field of an intravascular ultrasonic system and a data acquisition device thereof, in particular to a novel intravascular ultrasonic imaging acquisition card and an ultrasonic imaging system. Background technique [0002] Existing in-vivo ultrasound imaging systems use ultrasound center frequencies ranging from a few megahertz to tens of megahertz for different detection objects. Due to the high center frequency, there are high requirements for the collection, transmission and processing speed of the collection system. [0003] Most of the traditional in vivo ultrasound systems are based on the computer structure peripheral interconnect bus (PCI). With the continuous development of computer technology, the products are constantly updated. The configuration and structure of computer motherboards have changed, and the PCI bus has gradually been replaced by the PCI-Express bus. Therefore, PCI-compatible subsystem boards are n...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new type of intravascular ultrasonic imaging acquisition card and ultrasonic imaging system to solve the problem that the transmission rate of the existing ultrasonic acquisition card cannot meet the high performance and real-time transmission and the resulting ultrasonic imaging system cannot meet the current needs.

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