Bharat Tripathi

Works (4)

Updated: July 5th, 2023 15:21

2022 article

In situ ultrasound imaging of shear shock waves in the porcine brain

Chandrasekaran, S., Santibanez, F., Tripathi, B. B., DeRuiter, R., Bruegge, R. V., & Pinton, G. (2022, January 4). Journal of Biomechanics.

By: S. Chandrasekaran n, F. Santibanez  n, B. Tripathi*, R. DeRuiter n, R. Bruegge & G. Pinton n

author keywords: Ultrasound imaging; RF tracking; Motion tracking; Shear waves; Shock waves
MeSH headings : Animals; Brain / diagnostic imaging; Brain Injuries, Traumatic; Elasticity Imaging Techniques / methods; Head; Motion; Phantoms, Imaging; Swine; Ultrasonography / methods
topics (OpenAlex): Automotive and Human Injury Biomechanics; Traumatic Brain Injury Research; Traumatic Brain Injury and Neurovascular Disturbances
TL;DR: The experimental velocity, acceleration, and strain-rate waveforms in brain for the monochromatic impact are shown to be in excellent agreement with theoretical predictions from a custom higher-order finite volume method hence demonstrating the capabilities to measure rapid brain motion despite strong acoustical reverberations from the porcine skull. (via Semantic Scholar)
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Added: May 16, 2022

2020 article

Modeling Ultrasound Propagation in the Moving Brain: Applications to Shear Shock Waves and Traumatic Brain Injury

Chandrasekaran, S., Tripathi, B. B., Espindola, D., & Pinton, G. F. (2020, September 7). IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control.

By: S. Chandrasekaran n, B. Tripathi n, D. Espindola * & G. Pinton n

author keywords: Biomedical acoustics; biomedical imaging; finite difference simulations; numerical simulation; shear shock waves; traumatic brain injury (TBI)
MeSH headings : Animals; Brain / diagnostic imaging; Brain Injuries, Traumatic; Elasticity Imaging Techniques; Humans; Phantoms, Imaging; Reproduction; Swine; Ultrasonography
topics (OpenAlex): Ultrasound Imaging and Elastography; Ultrasound and Hyperthermia Applications; Advanced MRI Techniques and Applications; Microwave Imaging and Scattering Analysis
TL;DR: It is shown that the proposed generalized impedance flow method accurately captures the shear wave motion in terms of the wave profile, shock front characteristics, odd harmonic spectrum generation, and acceleration at theShear shock front. (via Semantic Scholar)
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Added: January 19, 2021

2019 article

Modeling and simulations of two dimensional propagation of shear shock waves in relaxing soft solids

Tripathi, B. B., Espíndola, D., & Pinton, G. F. (2019, June 12). Journal of Computational Physics.

By: B. Tripathi n, D. Espíndola  n & G. Pinton n

author keywords: Piecewise parabolic method; Shear shock waves; Relaxation mechanisms; Traumatic brain injury
topics (OpenAlex): Elasticity and Material Modeling; Automotive and Human Injury Biomechanics; Ultrasound and Hyperthermia Applications
TL;DR: A two-dimensional system of first-order equations modeling the propagation of shear shock waves in a relaxing soft solid is presented, and this system is solved numerically using the piecewise parabolic method, a high-order finite volume method. (via Semantic Scholar)
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Added: August 26, 2019

2019 article

Piecewise parabolic method for propagation of shear shock waves in relaxing soft solids: One‐dimensional case

Tripathi, B. B., Espíndola, D., & Pinton, G. F. (2019, March 12). International Journal for Numerical Methods in Biomedical Engineering.

By: B. Tripathi n, D. Espíndola  n & G. Pinton n

author keywords: piecewise parabolic method; relaxation mechanisms; shear shock waves; traumatic brain injury
MeSH headings : Brain / diagnostic imaging; Brain / physiology; Brain / physiopathology; Finite Element Analysis; Head Injuries, Closed / physiopathology; Humans; Models, Biological; Nonlinear Dynamics; Reproducibility of Results; Ultrasonography
topics (OpenAlex): Elasticity and Material Modeling; Computational Fluid Dynamics and Aerodynamics; Ultrasound and Hyperthermia Applications
TL;DR: A 1D inviscid velocity‐stress–like system to model the propagation of shear shock waves in a homogeneous medium is developed and a generalized Maxwell body is used to model a relaxing medium that can describe experimentally determined attenuation laws. (via Semantic Scholar)
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Added: July 1, 2019

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