Improved high-frequency high frame rate duplex ultrasound linear array imaging system

Lequan Zhang, Xiaochen Xu, Changhong Hu, Lei Sun, Jesse T. Yen, Jonathan M. Cannata, K. Kirk Shung

Research output: Journal article publicationConference articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

In this paper, we report recent progress that has been made in the development of a high frame rate duplex HF ultrasound system with both B-scan imaging and Doppler flow measurements. A 32-channel HF analog beamformer module with transmitting focusing and dynamic focusing on reception was implemented. High-speed timing circuits were used to achieve high imaging frame rate by reducing the acquisition overhead. Therefore, the frame rate of the system relies only on the field of view. The system also included a 64-channel analog front-end pulser/receiver, a HF pulsed-wave (PW) Doppler module, a PC with a 200MS/s 14-bit PCI A/D card and real-time Labview software for data acquisition and image display. A wire phantom used to evaluate the resolution of the system. High frame rate B-scan images of mouse hearts have been obtained, as well as the PW Doppler blood flow velocity profiles at the specified location. The system is able to acquire real-time B-mode images at a rate greater than 400 frames per second in a 4.8 × 13 mm field of view. In vivo mouse experiment results show a promising future of this system in small animal research. The system will be expanded to support future arrays with more elements.
Original languageEnglish
Article number4803466
Pages (from-to)1730-1733
Number of pages4
JournalProceedings - IEEE Ultrasonics Symposium
DOIs
Publication statusPublished - 1 Dec 2008
Event2008 IEEE International Ultrasonics Symposium, IUS 2008 - Beijing, China
Duration: 2 Nov 20085 Nov 2008

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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