[HTML][HTML] An atlas of the heterogeneous viscoelastic brain with local power-law attenuation synthesised using Prony-series

O Morrison, M Destrade, BB Tripathi - Acta Biomaterialia, 2023 - Elsevier
This review addresses the acute need to acknowledge the mechanical heterogeneity of
brain matter and to accurately calibrate its local viscoelastic material properties accordingly …

Modeling ultrasound propagation in the moving brain: applications to shear shock waves and traumatic brain injury

S Chandrasekaran, BB Tripathi… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Traumatic brain injury (TBI) studies on the living human brain are experimentally infeasible
due to ethical reasons and the elastic properties of the brain degrade rapidly postmortem …

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

BB Tripathi, D Espíndola… - International journal for …, 2019 - Wiley Online Library
Shear shock waves can be generated spontaneously deep within the brain during a
traumatic injury. This recently observed behavior could be a primary mechanism for the …

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

S Chandrasekaran, F Santibanez, BB Tripathi… - Journal of …, 2022 - Elsevier
Direct measurement of brain motion at high spatio-temporal resolutions during impacts has
been a persistent challenge in brain biomechanics. Using high frame-rate ultrasound and …

[HTML][HTML] Super-resolved shear shock focusing in the human head

BB Tripathi, S Chandrasekaran, GF Pinton - Brain Multiphysics, 2021 - Elsevier
Shear shocks, which exist in a completely different regime from compressional shocks, were
recently observed in the brain. These low phase speed (≈ 2 m/s) high Mach number (≈ 1) …

[BOOK][B] Ultrasound Imaging of Shear Shock Waves in the Brain: Application to Traumatic Brain Injury

S Chandrasekaran - 2022 - search.proquest.com
The relationship between local brain motion and the resulting Traumatic Brain Injury (TBI)
remains poorly understood despite many decades of investigation. This is due to challenges …

Shear Shock Wave Focusing in Human Skull Phantom: Observations with High-Frame Rate Ultrasound Imaging and Matched Simulations

BB Tripathi, D Espindola… - 2018 IEEE …, 2018 - ieeexplore.ieee.org
We have recently observed that smooth low acceleration shear waves develop into
destructive high acceleration shear shocks as they propagate in fresh ex vivo porcine brain …

Subresolution Displacements and Shear Shock Wave Tracking in the Human Brain

S Chandrasekaran, B Tripathi… - 2018 IEEE …, 2018 - ieeexplore.ieee.org
Highly realistic finite difference simulations of acoustical wave propagation can be used to
describe ultrasound imaging in soft tissue. They have recently been shown to also model the …