Use of brain biomechanical models for monitoring impact exposure in contact sports

S Ji, M Ghajari, H Mao, RH Kraft… - Annals of Biomedical …, 2022 - Springer
Head acceleration measurement sensors are now widely deployed in the field to monitor
head kinematic exposure in contact sports. The wealth of impact kinematics data provides …

Real-time dynamic simulation for highly accurate spatiotemporal brain deformation from impact

S Wu, W Zhao, S Ji - Computer methods in applied mechanics and …, 2022 - Elsevier
Real-time dynamic simulation remains a significant challenge for spatiotemporal data of
high dimension and resolution. In this study, we establish a transformer neural network …

American football helmet effectiveness against a strain-based concussion mechanism

K Ghazi, M Begonia, S Rowson, S Ji - Annals of biomedical engineering, 2022 - Springer
Brain strain is increasingly being used in helmet design and safety performance evaluation
as it is generally considered as the primary mechanism of concussion. In this study, we …

Brain deformation estimation with transfer learning for head impact datasets across impact types

X Zhan, Y Liu, NJ Cecchi, O Gevaert… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Objective: The machine-learning head model (MLHM) to accelerate the calculation of brain
strain and strain rate, which are the predictors for traumatic brain injury (TBI), but the model …

A morphologically individualized deep learning brain injury model

N Lin, S Wu, S Ji - Journal of Neurotrauma, 2023 - liebertpub.com
The brain injury modeling community has recommended improving model subject specificity
and simulation efficiency. Here, we extend an instantaneous (< 1 sec) convolutional neural …

A sensor-enabled cloud-based computing platform for computational brain biomechanics

RR Menghani, A Das, RH Kraft - Computer Methods and Programs in …, 2023 - Elsevier
Abstract Background and Objectives Driven by the risk of repetitive head trauma, sensors
have been integrated into mouthguards to measure head impacts in contact sports and …

[HTML][HTML] Dynamic characteristics of impact-induced brain strain in the corpus callosum

S Ji, S Wu, W Zhao - Brain Multiphysics, 2022 - Elsevier
Impact-induced brain strains are spatially rich and intrinsically dynamic. However, the
dynamic information of brain strain is not typically used in any injury investigation. Here, we …

Efficient generation of pretraining samples for developing a deep learning brain injury model via transfer learning

N Lin, S Wu, Z Wu, S Ji - Annals of Biomedical Engineering, 2024 - Springer
The large amount of training samples required to develop a deep learning brain injury
model demands enormous computational resources. Here, we study how a transformer …

Effect of impact kinematic filters on brain strain responses in contact sports

N Lin, G Tierney, S Ji - IEEE Transactions on Biomedical …, 2024 - ieeexplore.ieee.org
Objective: Impact kinematics are widely employed to investigate mechanisms of traumatic
brain injury (TBI). However, they are susceptible to noise and artefacts; thus, require data …

[PDF][PDF] TRAUMATIC AXONAL INJURY IN THE MOUSE BRAIN

CA Bradfield - 2022 - jscholarship.library.jhu.edu
Despite decades of research into neurotrauma prevention and treatment, the underlying
mechanisms responsible for Traumatic Brain Injury (TBI) are not well understood. This is a …