Karl Heath Martin

Works (7)

Updated: July 13th, 2023 21:14

2016 journal article

Adaptive windowing in contrast-enhanced intravascular ultrasound imaging

ULTRASONICS, 70, 123–135.

By: B. Lindsey  n, K. Martin n, X. Jiang n  & P. Dayton n

Contributors: B. Lindsey  n, K. Martin n, X. Jiang n  & P. Dayton n

author keywords: Intravascular ultrasound; Contrast-enhanced ultrasound; Adaptive beamforming; Phase coherence factor; High frequency ultrasound; Superharmonic
MeSH headings : Algorithms; Animals; Atherosclerosis / diagnostic imaging; Chick Embryo; Computer Simulation; Contrast Media; Data Interpretation, Statistical; Image Enhancement / methods; Image Interpretation, Computer-Assisted / methods; Models, Statistical; Phantoms, Imaging; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Swine; Ultrasonography, Interventional / instrumentation; Ultrasonography, Interventional / methods; Vasa Vasorum / diagnostic imaging
TL;DR: Applying signal processing approaches based on minimum variance (MV) beamforming and the phase coherence factor (PCF) for improving the spatial resolution and contrast-to-tissue ratio (CTR) in IVUS imaging can enhance image quality in conventional B-mode IVUS or in contrast-enhanced IVUS, where signal- to-noise ratio is relatively low and resolution is at a premium. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 journal article

Contrast Enhanced Superharmonic Imaging for Acoustic Angiography Using Reduced Form-Factor Lateral Mode Transmitters for Intravascular and Intracavity Applications

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 64(2), 311–319.

By: Z. Wang n, K. Martin n, W. Huang *, P. Dayton n & X. Jiang n 

Contributors: Z. Wang n, K. Martin n, W. Huang *, P. Dayton n & X. Jiang n 

author keywords: Dual frequency; lateral mode transducer; superharmonic; ultrasound transducer
MeSH headings : Acoustics / instrumentation; Angiography / instrumentation; Contrast Media / chemistry; Equipment Design; Humans; Microbubbles; Transducers; Ultrasonography / instrumentation
TL;DR: Results show that superharmonic imaging with a low frequency lateral mode transmitter is a feasible alternative to thickness mode transmitters when the final transducer size requirements dictate design choices. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 journal article

High Resolution Ultrasound Superharmonic Perfusion Imaging: In Vivo Feasibility and Quantification of Dynamic Contrast-Enhanced Acoustic Angiography

ANNALS OF BIOMEDICAL ENGINEERING, 45(4), 939–948.

By: B. Lindsey  n, S. Shelton n , K. Martin n, K. Ozgun  n, J. Rojas n, F. Foster *, P. Dayton*

author keywords: Ultrasound; Perfusion; Microbubble; High frequency; Low flow imaging; Quantitative imaging; Angiogenesis; Superharmonic
MeSH headings : Angiography / methods; Animals; Chick Embryo; Chorioallantoic Membrane / blood supply; Chorioallantoic Membrane / diagnostic imaging; Contrast Media / pharmacology; Microbubbles / therapeutic use; Perfusion Imaging / methods; Ultrasonography / methods
TL;DR: The feasibility of dynamic contrast-enhanced superharmonic perfusion imaging at low flow rates is demonstrated and the feasibility of quantitatively mapping perfusion rate in 2D in a mouse model with spatial resolution of ~100 μm is demonstrated. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

An Integrated System for Superharmonic Contrast-Enhanced Ultrasound Imaging: Design and Intravascular Phantom Imaging Study

IEEE Transactions on Biomedical Engineering, 63(9), 1933–1943.

By: Y. Li *, J. Ma  n, K. Martin n, M. Yu *, T. Ma *, P. Dayton n, X. Jiang n , K. Shung *, Q. Zhou *

Contributors: Y. Li *, J. Ma  n, K. Martin n, M. Yu *, T. Ma *, P. Dayton n, X. Jiang n , K. Shung *, Q. Zhou *

author keywords: Acoustic angiography; biomedical electronics; field-programmable gate arrays (FPGA); intravascular ultrasound (IVUS); microbubble contrast agent (MCA); ultrasonic imaging; ultrasonic transducer
MeSH headings : Arteries / diagnostic imaging; Contrast Media; Elasticity Imaging Techniques / instrumentation; Elasticity Imaging Techniques / methods; Equipment Design; Equipment Failure Analysis; Humans; Image Enhancement / instrumentation; Image Enhancement / methods; Phantoms, Imaging; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted / instrumentation; Systems Integration; Ultrasonography, Interventional / instrumentation; Ultrasonography, Interventional / methods
TL;DR: The system greatly reduced the cost and complexity of the superharmonic imaging intended for preclinical study and showed promise for high-contrast intravascular microvascular imaging, which may have significant importance in assessment of the vasa vasorum associated with atherosclerotic plaques. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, Crossref, NC State University Libraries
Added: August 6, 2018

2014 article

An array transmitter for dual-frequency contrast enhanced intravascular ultrasound imaging

2014 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS), pp. 2104–2107.

By: Z. Wang n, J. Ma n, X. Jiang n , K. Martin*, P. Dayton* & Ieee

Contributors: Z. Wang n, J. Ma n, X. Jiang n , K. Martin*, P. Dayton* & Ieee

author keywords: contrast ultrasound; transmitting array transducer; angiography lateral mode transducer; superharmonic; acoustic angiography
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging

Sensors, 14(11), 20825–20842.

By: K. Martin*, B. Lindsey *, J. Ma n, M. Lee *, S. Li n, F. Foster *, X. Jiang n , P. Dayton*

Contributors: K. Martin*, B. Lindsey *, J. Ma n, M. Lee *, S. Li n, F. Foster *, X. Jiang n , P. Dayton*

author keywords: acoustics; acoustic angiography; dual-frequency; superharmonic; harmonic; broadband; microbubbles
MeSH headings : Aircraft / instrumentation; Contrast Media; Equipment Design; Equipment Failure Analysis; Image Enhancement / instrumentation; Materials Testing / instrumentation; Micro-Electrical-Mechanical Systems / instrumentation; Miniaturization; Radio Waves; Reproducibility of Results; Sensitivity and Specificity; Transducers; Ultrasonography / instrumentation
TL;DR: The background principles and recent developments of ultrasound transducer technology for receiving signals produced by contrast agents while rejecting signals arising from soft tissue are described and this approach relies on transmitting at a low-frequency and receiving microbubble harmonic signals at frequencies many times higher than the transmitted frequency. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2014 article

Optimization of Contrast-to-tissue Ratio and Role of Bubble Destruction in Dual-Frequency Contrast-Specific "Acoustic Angiography" Imaging

2014 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS), pp. 1774–1777.

By: B. Lindsey *, J. Rojas*, K. Martin*, S. Shelton*  & P. Dayton*

author keywords: superharmonic; microbubble; high frequency ultrasound; cavitation; dual-frequency; contrast-to-tissue ratio
TL;DR: This work examines the imaging parameters for optimizing contrast-to-tissue ratio (CTR) for dual-frequency imaging and the relationship between bubble destruction and broadband harmonic signal production and indicates that superharmonic signals having the broadest bandwidth and highest energy are associated with shell fragmentation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

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