Tuhin Roy
Elastography, Finite element analysis, Signal processing, Acoustics, Inverse Problems
Works (15)
Updated: September 9th, 2023 05:01
2023 journal article
Full waveform inversion for arterial viscoelasticity
PHYSICS IN MEDICINE AND BIOLOGY, 68(5).
author keywords: arterial stiffness; shear wave elastography; guided waves; semi-analytical finite element method; cross-correlation
MeSH headings : Viscosity; Phantoms, Imaging; Elasticity; Arteries / diagnostic imaging; Elasticity Imaging Techniques / methods
TL;DR:
This paper develops a full waveform inversion (FWI) methodology, based on directly matching predicted and measured wall velocity in space and time, to simultaneously estimate both elasticity and viscosity, and concludes that the proposed FWI is effective in estimating arterial viscoelasticity.
(via Semantic Scholar)
open access via iopscience.iop.org (publisher PDF)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: March 13, 2023
2023 article
Improving group velocity based estimates of arterial stiffness
Capron, C., Roy, T., Guddati, M., & Urban, M. W. (2023, March). JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, Vol. 153.
TL;DR:
An interpolation-based method is developed to provide a corrected G estimate using data generated by the SAFE model, which shows severe geometry-dependent bias with the bulk method, which is partially ameliorated with the PWV method and substantially improved with the interpolation approach.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Source: Web Of Science
Added: September 5, 2023
2023 article
Shear wave elastography: From dispersion matching to full waveform inversion
Guddati, M., Roy, T., Elmeliegy, A. M., & Urban, M. W. (2023, March). JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, Vol. 153.
TL;DR:
This paper presents inversion approaches ranging from matching dispersion characteristics to matching full waveform responses and provides rationale for choosing the appropriate technique(s) depending on the problem at hand.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: September 5, 2023
2022 journal article
Full wave simulation of arterial response under acoustic radiation force
COMPUTERS IN BIOLOGY AND MEDICINE, 149.
author keywords: Arterial stiffness; Guided waves; Semi-analytical finite element method; Shear wave elastography; Viscoelasticity
MeSH headings : Acoustics; Arteries / diagnostic imaging; Arteries / physiology; Elasticity Imaging Techniques / methods; Finite Element Analysis; Humans; Phantoms, Imaging
TL;DR:
The computational effort is shown to be several orders of magnitude less than the traditional, fully three-dimensional analysis using finite element methods, leading to a practical yet accurate simulation of arterial response under ARF excitations.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: October 17, 2022
2022 journal article
Measurement of wave propagation through a tube using dual transducers for elastography in arteries
PHYSICS IN MEDICINE AND BIOLOGY, 67(22).
author keywords: artery; wave propagation; elasticity; acoustic radiation force
MeSH headings : Elasticity Imaging Techniques / methods; Phantoms, Imaging; Transducers; Arteries / diagnostic imaging; Arteries / physiology; Motion
TL;DR:
This study provides a more comprehensive understanding of the waves produced in an artery-mimicking tube with ARF application, which will provide opportunities for improving measurement of arterial mechanical properties.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: December 19, 2022
2022 journal article
The influence of acoustic radiation force beam shape and location on wave spectral content for arterial dispersion ultrasound vibrometry
PHYSICS IN MEDICINE AND BIOLOGY, 67(13).
author keywords: ultrasound; shear wave; artery; waveguide; dispersion
MeSH headings : Acoustics; Elasticity Imaging Techniques / methods; Phantoms, Imaging; Ultrasonography
TL;DR:
This investigation is important to understand the spectral content variations in ADUV measurements and to maximize inversion accuracy by tuning the ARF beam settings in clinical applications.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: July 5, 2022
2021 conference paper
Arterial Stiffness Estimation with Shear Wave Elastography
Presented at the 180th Meeting of the Acoustical Society of America.
Event: 180th Meeting of the Acoustical Society of America on June 8-10, 2021
Source: NC State University Libraries
Added: June 17, 2021
2021 journal article
Multimodal guided wave inversion for arterial stiffness: methodology and validation in phantoms
PHYSICS IN MEDICINE AND BIOLOGY, 66(11).
author keywords: elastography; dispersion; inverse problems; finite element; fluid-structure interaction
MeSH headings : Algorithms; Elastic Modulus; Elasticity Imaging Techniques; Phantoms, Imaging; Vascular Stiffness
TL;DR:
A new GWI approach is developed and validates by synthesizing various recent observations and algorithms, and the resulting inversion approach is validated using extensive experimental data from rubber tube phantoms, not only for modulus estimation but also to simultaneously estimate modulus and wall thickness.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: June 10, 2021
2021 journal article
Shear wave dispersion analysis of incompressible waveguides
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 149(2), 972–982.
TL;DR:
A suite of methodologies is presented to compute shear wave dispersion in incompressible waveguides encountered in biomedical imaging, based on semi-analytical finite element methods in the frequency domain with a specific focus on the complexities associated with the incompressibility of the solid media.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: April 12, 2021
2021 journal article
Toward improved accuracy in shear wave elastography of arteries through controlling the arterial response to ultrasound perturbation in-silico and in phantoms
PHYSICS IN MEDICINE AND BIOLOGY, 66(23).
author keywords: acoustic radiation force; ultrasound vibrometry; waveguide modes; arteries
MeSH headings : Acoustics; Arteries / diagnostic imaging; Elasticity Imaging Techniques / methods; Phantoms, Imaging; Ultrasonography
TL;DR:
It is shown that all even-numbered waveguide modes can be eliminated from the arterial response to perturbation, and the efficacy of this approach with in silico tests that show that odd modes are preferentially excited, and a set of ultrasound focal parameters are found that demonstrate the viability of inducing the desired odd-mode response in experiments.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 12, 2021
2020 journal article
Characterizing blood clots using acoustic radiation force optical coherence elastography and ultrasound shear wave elastography
PHYSICS IN MEDICINE AND BIOLOGY, 66(3).
author keywords: ischemic stroke; blood clots; mechanical thrombectomy (MT); thrombus; optical coherence elastography (OCE); shear wave elastography (SWE); acoustic radiation force (ARF)
MeSH headings : Acoustics; Elasticity Imaging Techniques; Erythrocytes / metabolism; Fibrin / metabolism; Finite Element Analysis; Humans; Thrombosis / diagnostic imaging; Thrombosis / metabolism; Tomography, Optical Coherence
TL;DR:
The study demonstrated that the composition of the clots can be characterized by elastographic methods using ARF–OCE and SWE, and OCE demonstrated better ability to discriminate between clots of different RBC compositions, compared to the ultrasound-based approach, especially in clots with low RBC composition.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: February 15, 2021
2020 conference paper
Guided wave inversion for arterial stiffness
The Journal of the Acoustical Society of America, 148(4), 2450–2450.
Event: 179th Meeting of the Acoustical Society of America on December 7-11, 2020
Sources: Crossref, NC State University Libraries
Added: June 17, 2021
2020 conference paper
Multimodal Inversion for Shear Modulus and Thickness of Arteries
Presented at the IEEE International Ultrasonics Symposium. https://api.ltb.io/show/BHQIA
Event: IEEE International Ultrasonics Symposium on September 6-11, 2020
Source: NC State University Libraries
Added: June 17, 2021
2017 journal article
Reliability based inspection planning using fracture mechanics based fatigue evaluations for ship structural details
Marine Structures, 54, 1–22.
author keywords: Fracture mechanics; Fatigue; Ship structure details; Inspection planning; S-N curve; Bayesian updating; Reliability index; Probability of detection
Sources: Crossref, NC State University Libraries
Added: June 17, 2021
2014 report
Meso level discrete element modeling for localized failure in concrete
[M.Tech. Thesis]. Kharagpur, India: Indian Institute of Technology.
Source: NC State University Libraries
Added: June 17, 2021
Employment
Updated: February 3rd, 2023 11:40
2023 - present
Columbia University New York, US
Postdoctoral Research Scientist
Biomedical Engineering
2021 - present
North Carolina State University Raleigh, North Carolina, US
Postdoctoral Research Scholar
Civil Engineering
2022 - 2022
Mayo Clinic Rochester, Minnesota, US
Research Affiliate
Biomedical Engineering
2014 - 2016
Indian Register of Shipping Mumbai, Maharashtra, IN
Assistant Surveyor
Research and Innovation
Education
Updated: January 18th, 2017 13:26
2016 - present
North Carolina State University Raleigh, NC, US
PhD
Civil Engineering
2012 - 2014
Indian Institute of Technology Kharagpur Kharagpur, West Bengal, IN
Master of Technology (M.Tech)
Civil Engineering
2008 - 2012
Indian Institute of Engineering Science and Technology Howrah, West Bengal, IN
Bachelor of Engineering (B.E.)
Civil Engineering
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