Publications

Journal Publications

Roy T., Kemper P., Mobadersany N., Shi H., Konofagou E. E., (2025) “Assessment of Spatially-Varying Arterial Wall Stiffness and Pressure Using a Physics-Informed Neural Network and Pulse Wave Imaging: An in Silico and Experimental Phantom Study of Stenotic Vessels”, Ultrasound in Medicine & Biology (https://doi.org/10.1016/j.ultrasmedbio.2025.09.012)

Roy T., Konofagou E. E., (2025) “3D finite-element study for multi-frequency harmonic shear wave elastography: shear wave speed contrast assessment and experimental verification”, Journal of Biomechanics (https://doi.org/10.1016/j.jbiomech.2025.112886)

Roy T., Lee H.-K., Capron C. B., Lopez-Jimenez F., Hesley Gina K., Greenleaf J. F., Urban M. W., Guddati M. N., (2025) “Estimation of in vivo human carotid artery elasticity using Arterial Dispersion Ultrasound Vibrometry”, Ultrasound in Medicine & Biology, Volume 51, Issue 2, Pages 250-261 (https://doi.org/10.1016/j.ultrasmedbio.2024.09.023)

Roy T., Guddati M. N., (2023) “Full Waveform Inversion for Arterial Viscoelasticity”, Physics in Medicine & Biology, Vol 68, Issue 5, 05NT02 (https://doi.org/10.1088/1361-6560/acba7a)

Roy T., Guddati M. N., (2022) “Full Wave Simulation of Arterial Response under Acoustic Radiation Force”, Computers in Biology and Medicines,106021 (https://doi.org/10.1016/j.compbiomed.2022.106021)

Roy T., Urban M. W., Xu Y., Greenleaf J. F., Guddati M. N., (2021) “Multimodal guided wave inversion for arterial stiffness: methodology and validation in phantoms”, Physics in Medicine & Biology, Vol 66, Issue 11, 115020 (https://doi.org/10.1088/1361-6560/ac01b7)

Roy T., Guddati M. N., (2021) “Shear wave dispersion analysis of incompressible waveguides”, The Journal of the Acoustical Society of America, Vol 149, Issue 2, Pages 972-982 (https://doi.org/10.1121/10.0003430)

Roy T., Capron C. B., Adhikary S., Urban M. W., Guddati M. N., “Frequency-Wavenumber Domain Inversion for Arterial Viscoelasticity: A Feasibility Study Using In Silico, Phantom, Ex Vivo, and In Vivo Shear Wave Elastography Data”, Ultrasonics (in-preparation)

Capron C. B., Roy T., Adhikary S., Guddati M. N., Urban M. W., "The Geometric Dependence of Wave Velocity in Carotid Arteries: Phantom and Finite Element Study and Implications for Vascular “Shear Wave” Elastography", Ultrasound in Medicine and Biology (https://doi.org/10.1016/j.ultrasmedbio.2025.06.012)

Gami P., Roy T., Liang P., Kemper P., Travagliati M., Baldasarre L., Bart S., Konofagou E. E., (2025) “In Vivo Characterization of Central Arterial Properties Using a Miniaturized pMUT Array Compared to a Clinical Transducer: A Feasibility Study Towards Wearable Pulse Wave Imaging”, IEEE Transactions on Biomedical Engineering, PMID: 40085470, doi: 10.1109/TBME.2025.3551281

Urban M. W., Roy T., Aquino W., Guddati M. N., Greenleaf J. F., (2023) "Understanding Arterial Biomechanics with Ultrasound and Waveguide - Models", Acoustics Today, Spring;19(1):46-54. doi: 10.1121/at.2023.19.1.46. PMID: 36970498; PMCID: PMC10035499

Lee H.-K., Capron C. B., Liu H.-C., Roy T., Guddati M. N., Greenleaf J. F., Urban M. W., (2022) "Measurement of wave propagation through a tube using dual transducers for elastography in arteries", Physics in Medicine & Biology, (https://doi.org/10.1088/1361-6560/AC9C3F)

Capriotti M., Roy T., Hugenberg N. R., Harrigan H., Lee H. C., Aquino W., Guddati M. N., Greenleaf J. F., Urban M. W., (2022) “The influence of acoustic radiation force beam shape and location on wave spectral content for arterial dispersion ultrasound vibrometry”, Physics in Medicine & Biology, Vol 67, Issue 13 (https://doi.org/10.1088/1361-6560/ac75a7)

Hugenberg N. R., Roy T., Harrigan H., Capriotti M., Lee H. K., Guddati M. N., Greenleaf J. F., Urban M. W., Aquino W., (2021) “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 & Biology, Vol 66, Issue 23 (http://dx.doi.org/10.1088/1361-6560/ac38fe)

Liu H. C., Abbasi M., Ding Y. H., Roy T., Capriotti M., Liu Y., Fitzgerald S., Doyle K. M., Guddati M. N., Urban M. W., Brinjikji W., (2021) “Characterizing blood clots using acoustic radiation force optical coherence elastography and ultrasound shear wave elastography”, Physics in Medicine & Biology, Vol 66, Issue 3 (https://doi.org/10.1088/1361-6560/abcb1e)

Doshi K., Roy T., Parihar Y., (2017) “Reliability based inspection planning using fracture mechanics based fatigue evaluations for ship structural details”, Marine Structures, Vol 54, Pages 1–22 (https://doi.org/10.1016/j.marstruc.2017.03.003)

Patent

Roy T., Guddati M. N., Urban M. W., Capron C. B., (filed in 2023) "Estimation of viscoelasticity of arterial or venous wall", US20250352173A1/EP4531695A1 (country: USA and Europe) (current status as of Feb 2026: pending)

Conference Presentations

Roy T., Konofagou E. E., (2025) “Towards characterizing soft tissue viscoelasticity using ultrasound-based harmonic shear wave elastography and physics-informed neural networks”, 188th Meeting of the Acoustical Society of America joint with the 25th International Congress on Acoustics, New Orleans, Louisiana, USA (Invited Talk)

Roy T., Kemper P., Mobadersany N., Konofagou E., (2024) “A physics-informed neural network approach for determining spatially varying arterial stiffness using ultrasound imaging: FD simulation and experimental plaque phantom validation”, IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (IEEE UFFC-JS 2024), Taipei, Taiwan

Roy T., Lee H.-K., Capron C. B., Lopez-Jimenez F., Hesley Gina K., Greenleaf J. F., Urban M. W., Guddati M. N., (2024) “Protocols for robust in vivo carotid arterial stiffness estimation using arterial dispersion ultrasound vibrometry”, IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (IEEE UFFC-JS 2024), Taipei, Taiwan

Roy T., Konofagou E., (2024) “Viscoelasticity Estimation using Physics-Informed Neural Network for Breast Shear Wave Elastography”, International Symposium on Ultrasonic Imaging and Tissue Characterization (UITC 2024), West Arlington, Virginia, USA

Roy T., Konofagou E., (2024) “3D Finite Element Study of Multi-frequency Harmonic Shear Wave Elastography (HSWE) for Stiffness Contrast Quantification with Experimental Validation”, IEEE South Asian Ultrasonics Symposium (SAUS 2024), IIT Gandhinagar, India (certificate of attendance is here)

Roy T., Lee H. C., Capron C., Urban M. W., Greenleaf J. F., Guddati M. N., (2022) “In vivo estimation of shear modulus of human carotid arteries using arterial dispersion ultrasound vibrometry”, IEEE International Ultrasonics Symposium (IUS-2022), Venice, Italy (certificate of attendance is here)

Roy T., Guddati M. N., (2022) “Viscoelasticity estimation of arterial walls using shear wave elastography”, International Symposium on Ultrasonic Imaging and Tissue Characterization (UITC-2022)

Roy T., Guddati M. N., (2022) “Viscoelasticity inversion for arterial shear wave elastography”, 182nd Acoustical Society of America Meeting (ASA, May 2022), Denver, United States (https://doi.org/10.1121/10.0011074)

Roy T., Guddati M. N., (2022) “Estimation of elastic and viscoelastic moduli of arterial walls using shear wave elastography”, IEEE International Symposium on Biomedical Imaging (ISBI-2022), Kolkata, India

Roy T., Urban M. W., Greenleaf J. F., Guddati M. N., (2021) “Viscoelasticity inversion for arterial shear wave elastography”, IEEE International Ultrasonics Symposium (IUS-2021)

Roy T., Urban M. W., Greenleaf J. F., Guddati M. N., (2021) “Efficient simulation of full-wave response of arteries under acoustic radiation force”, IEEE International Ultrasonics Symposium (IUS-2021)

Roy T., Guddati M. N., (2021) “Estimation of arterial viscoelasticity through full-wave elastography”, 16th U.S. National Congress on Computational Mechanics Conference (certificate of attendance is here)

Roy T., Guddati M. N., (2021) “Full-wave simulation for arterial shear wave elastography through semi-analytical finite element method and rational interpolation”, VI ECCOMAS Young Investigators Conference (certificate of attendance is here)

Roy T., Urban M. W., Greenleaf J. F., Guddati M. N., (2021) “Arterial stiffness estimation with shear wave elastography”, Acoustics in Focus, The 180th Meeting of the Acoustical Society of America (https://doi.org/10.1121/10.0004525)

Roy T., Urban M. W., Greenleaf J. F., Guddati M. N., (2020) “Guided wave inversion for arterial stiffness”, Acoustics Virtually Everywhere, The 179th Meeting of the Acoustical Society of America (additionally this work has been accepted for ASA press release) (https://doi.org/10.1121/1.5146760)

Roy T., Urban M. W., Greenleaf J. F., Guddati M. N., (2020) “Multimodal inversion for shear modulus and thickness of arteries”, IEEE International Ultrasonics Symposium (IUS-2020) (awarded Honourable Mention in Students’ Poster Competition), e-poster link: https://api.ltb.io/show/BHQIA

Conference Proceedings

Roy T., Kemper P., Mobadersany N., Konofagou E. E., (2024) "A physics-informed neural network approach for determining spatially varying arterial stiffness using ultrasound imaging: Finite Difference simulation and experimental plaque phantom validation", IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS), (DOI: 10.1109/UFFC-JS60046.2024.10794027)

Gami P., Xie J., Roy T., Liang P., Kemper P., Travagliati M., Baldasarre L., Bart S., Konofagou E.E., (2024) "Towards At-Home Pulse Wave Imaging: Characterization of Central Arterial Properties with a PMUT Array compared to a Clinical Diagnostics Transducer in vivo", IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS) (DOI: 10.1109/UFFC-JS60046.2024.10793816)

Doshi K., Parihar Y., Roy T., (2017) “Reliability based inspection planning using fracture mechanics based formulations for ship structures”, Proceedings of the 6th International Conference on Marine Structures (Marstruct 2017)

Doshi K., Roy T., (2017) “Benchmarking Studies for Pushover Analysis of Offshore Jacket Platforms”, Proceedings of the 5th International Conference on Ship and Offshore Technology, (ICSOT 2017), IIT Kharagpur, India

Doshi K., Roy T., (2017) “Analysis of Loads on NREL 5MW Offshore Wind Turbine”, Proceedings of the 5th International Conference on Ship and Offshore Technology, (ICSOT 2017), IIT Kharagpur, India