Thomas Kierski

College of Engineering

Works (5)

Updated: July 5th, 2023 14:43

2022 article

Performance Assessment of Ultra-Wideband and Dual-Mode 1D CMUT Arrays for Acoustic Angiography

2022 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IEEE IUS).

By: E. Belekov n, K. Bautista*, M. Annayev n, O. Adelegan n, A. Biliroglu n, T. Kierski*, J. Sanders n, R. Kemal n ...

author keywords: capacitive micromachined ultrasonic transducer; ultra-wideband; dual-mode; acoustic angiography; ultrasound handheld probe; contrast agent
TL;DR: A custom 256-channel imaging probe with integrated low-noise amplifiers and supporting power circuitry is designed with a strong use case for the UWB and dual-mode CMUT arrays in acoustic angiography applications. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: February 6, 2023

2021 journal article

Characterization of an Array-Based Dual-Frequency Transducer for Superharmonic Contrast Imaging

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 68(7), 2419–2431.

By: J. Yang *, E. Cherin *, J. Yin *, I. Newsome n, T. Kierski n, G. Pang*, C. Carnevale*, P. Dayton n, F. Foster *, C. Demore *

author keywords: Imaging; Transducers; Probes; Harmonic analysis; Acoustics; Acoustic arrays; Ultrasonic imaging; Acoustic angiography; array transducer; dual-frequency (DF); microbubble (MB) contrast agents; superharmonic imaging
MeSH headings : Angiography; Animals; Contrast Media; Mice; Microbubbles; Phantoms, Imaging; Transducers; Ultrasonography
TL;DR: In vitro contrast channel phantom imaging and in vivo xenograft mouse tumor imaging by this probe with superharmonic imaging showed contrast-to-tissue ratio improvements, compared to line-by-line micro-ultrasound B-mode imaging. (via Semantic Scholar)
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Source: Web Of Science
Added: July 12, 2021

2021 journal article

Implementation of a Novel 288-Element Dual-Frequency Array for Acoustic Angiography: In Vitro and In Vivo Characterization

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 68(8), 2657–2666.

By: I. Newsome n, T. Kierski n, G. Pang*, J. Yin *, J. Yang *, E. Cherin *, F. Foster *, C. Carnevale*, C. Demore *, P. Dayton n

author keywords: Imaging; Acoustics; Angiography; Transducers; Frequency measurement; Ultrasonic imaging; In vitro; Acoustic angiography; contrast agent; dual-frequency (DF); microbubbles; microvasculature; superharmonic
MeSH headings : Acoustics; Angiography; Contrast Media; Transducers; Ultrasonography
TL;DR: This work presents a system for performing acoustic angiography with a novel dual-frequency DF transducer—a coaxially stacked DF array (DFA), and evaluates the system both in vitro and in vivo and demonstrates improvements in sensitivity and imaging depth up to 13.1 dB and 10 mm, respectively, compared with previous wobbler probes. (via Semantic Scholar)
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Source: Web Of Science
Added: August 9, 2021

2020 journal article

Perspectives on high resolution microvascular imaging with contrast ultrasound

APPLIED PHYSICS LETTERS, 116(21).

By: T. Kierski n & P. Dayton n

TL;DR: This Perspective article introduces microvascular imaging strategies and their underlying technology and demonstrates a potential to visualize small blood vessels in vivo, unlike anything possible with traditional grayscale ultrasound. (via Semantic Scholar)
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Source: Web Of Science
Added: June 22, 2020

2020 journal article

Superharmonic Ultrasound for Motion-Independent Localization Microscopy: Applications to Microvascular Imaging From Low to High Flow Rates

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 67(5), 957–967.

By: T. Kierski n, D. Espindola  n, I. Newsome  n, E. Cherin *, J. Yin *, F. Foster *, C. Demore *, G. Pinton n, P. Dayton n

author keywords: Acoustic angiography (AA); angiogenesis; contrast agent; microbubble (MB); microvasculature; superharmonic imaging (SHI); ultrasound localization microscopy (ULM)
MeSH headings : Angiography; Animals; Female; Image Processing, Computer-Assisted / methods; Kidney / blood supply; Kidney / diagnostic imaging; Microscopy / methods; Microvessels / diagnostic imaging; Movement; Rats; Ultrasonography / methods
TL;DR: Superharmonic imaging is applied to ULM and an average improvement in SNR of 10.3-dB in vitro when compared with the standard singular value decomposition filter approach and an increase inSNR at low flow from 5 to 16.5 dB. (via Semantic Scholar)
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Source: Web Of Science
Added: May 26, 2020

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