Design and implementation of an advanced high-speed data acquisition system for photoacoustic tomography

Zhengjun Tang; Dongsheng He; Bin Yu; Hongwei Zhang; Biying Yu; Wangbiao Li; Zhifang Li; Hui Li; Shulian Wu

doi:10.1117/12.3036214

20 November 2024 Design and implementation of an advanced high-speed data acquisition system for photoacoustic tomography

Zhengjun Tang, Dongsheng He, Bin Yu, Hongwei Zhang, Biying Yu, Wangbiao Li, Zhifang Li, Hui Li, Shulian Wu

Author Affiliations +

Proceedings Volume 13242, Optics in Health Care and Biomedical Optics XIV; 1324213 (2024) https://doi.org/10.1117/12.3036214
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

Photoacoustic Tomography (PAT) combines the advantages of optical imaging and ultrasound imaging, playing an indispensable role in biomedical research and clinical investigations. However, current advanced PAT systems are large in size and expensive, limiting their widespread adoption. Despite attempts to reduce costs by using low-cost light sources, research on sensor driving and data acquisition optimization remains lacking. Therefore, we present a low-cost and high-speed PAT system consisting of a 20Hz pulse frequency PhotoSonus-YAG laser, ultrasound array transducer, a multi-channel high-speed data acquisition system, and computer.This study designs a multi-channel high-speed data acquisition system (DAS) based on FPGA. The system, with FPGA as the core, DDR III SDRAM as the storage device, and a 14-bit high-performance ADC as the core analogto- digital conversion chip, utilizes a USB-based high-speed data acquisition card solution. To meet the demand for synchronous processing of multi-channel signals, the system employs high-end FPGA chips from Xilinx’s ZYNQ7000 series and Texas Instruments’ AFE5816 chips from the ultrasonic AFE series. These components are interconnected via Low Voltage Differential Signaling (LVDS) interfaces to ensure high-speed and highly reliable digital signal transmission. The designed high-speed data acquisition system achieves a collection of 65MSPS × 14 Bit × 16 channels, with a maximum data acquisition speed of 1000 frames per second. This design not only significantly reduces the volume and cost of the PAT system but also ensures the quality of image preservation through real-time data acquisition and processing.

Citation Download Citation

Zhengjun Tang, Dongsheng He, Bin Yu, Hongwei Zhang, Biying Yu, Wangbiao Li, Zhifang Li, Hui Li, and Shulian Wu "Design and implementation of an advanced high-speed data acquisition system for photoacoustic tomography", Proc. SPIE 13242, Optics in Health Care and Biomedical Optics XIV, 1324213 (20 November 2024); https://doi.org/10.1117/12.3036214

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Data acquisition

Signal processing

Analog to digital converters

Data processing

Design

Data storage

Image processing

Keywords/Phrases

Search In:

Publication Years