A Real-Time Dual-Mode High-Frequency Beamformer for Ultrafast and Focused Imaging

Nicholas A. Campbell; Jeremy A. Brown

doi:10.1109/TUFFC.2022.3151218

A Real-Time Dual-Mode High-Frequency Beamformer for Ultrafast and Focused Imaging

Nicholas A. Campbell, Jeremy A. Brown

Medicine

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A firmware-based high-frequency beam- former implementing both conventional transmit focused B-mode imaging and diverging wave ultrafast (UF) imaging for Doppler overlay was developed. The beamformer can generate one transmit focused frame with four transmit focal zones (FZs), and 68 UF frames with 16 diverging waves each at a 10-Hz frame rate. The beamformer firmware stores the beamforming delays as a single bit, enabling efficient compression within the internal memory. The beamformer was characterized using a 30-MHz 64-element phased array endoscope. The hybrid system generates a 128 line by 768-pixel focused B-mode image spanning 1.2-12.6 mm axially over a ±32° range of steering angles. In addition, the system generates an UF image that is 64 lines by 384-pixels spanning 3.5-10.8 mm axially over a ±16° angle.

Original language	English
Pages (from-to)	1268-1276
Number of pages	9
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	69
Issue number	4
DOIs	https://doi.org/10.1109/TUFFC.2022.3151218
Publication status	Published - Apr 1 2022

Bibliographical note

Publisher Copyright:
© 1986-2012 IEEE.

ASJC Scopus Subject Areas

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

PubMed: MeSH publication types

Journal Article
Research Support, Non-U.S. Gov't

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10.1109/TUFFC.2022.3151218

Cite this

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abstract = "A firmware-based high-frequency beam- former implementing both conventional transmit focused B-mode imaging and diverging wave ultrafast (UF) imaging for Doppler overlay was developed. The beamformer can generate one transmit focused frame with four transmit focal zones (FZs), and 68 UF frames with 16 diverging waves each at a 10-Hz frame rate. The beamformer firmware stores the beamforming delays as a single bit, enabling efficient compression within the internal memory. The beamformer was characterized using a 30-MHz 64-element phased array endoscope. The hybrid system generates a 128 line by 768-pixel focused B-mode image spanning 1.2-12.6 mm axially over a ±32° range of steering angles. In addition, the system generates an UF image that is 64 lines by 384-pixels spanning 3.5-10.8 mm axially over a ±16° angle. ",

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A Real-Time Dual-Mode High-Frequency Beamformer for Ultrafast and Focused Imaging

Abstract

Bibliographical note

ASJC Scopus Subject Areas

PubMed: MeSH publication types

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