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- W2010192028 abstract "Finite element models of the human head play an important role in investigating the mechanisms of traumatic brain injury, including sports concussion. A critical limitation, however, is that they incur a substantial computational cost to simulate even a single impact. Therefore, current simulation schemes significantly hamper brain injury studies based on model-estimated tissue-level responses. In this study, we present a pre-computed brain response atlas (pcBRA) to substantially increase the simulation efficiency in estimating brain strains using isolated rotational acceleration impulses parameterized with four independent variables (peak magnitude and duration, and rotational axis azimuth and elevation angles) with values determined from on-field measurements. Using randomly generated testing datasets, the partially established pcBRA achieved a 100% success rate in interpolation based on element-wise differences in accumulated peak strain ([Formula: see text]) according to a double-10% criterion or average regional [Formula: see text] in generic regions and the corpus callosum. A similar performance was maintained in extrapolation. The pcBRA performance was further successfully validated against directly simulated responses from two independently measured typical real-world rotational profiles. The computational cost to estimate element-wise whole-brain or regional [Formula: see text] was 6 s and <0.01 s, respectively, vs. ~50 min directly simulating a 40 ms impulse. These findings suggest the pcBRA could substantially increase the throughput in impact simulation without significant loss of accuracy from the estimation itself and, thus, its potential to accelerate the exploration of the mechanisms of sports concussion in general. If successful, the pcBRA may also become a diagnostic adjunct in conjunction with sensors that measure head impact kinematics on the field to objectively monitor and identify tissue-level brain trauma in real-time for return-to-play decision-making on the sideline." @default.
- W2010192028 created "2016-06-24" @default.
- W2010192028 creator A5072003003 @default.
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- W2010192028 date "2014-12-02" @default.
- W2010192028 modified "2023-10-13" @default.
- W2010192028 title "A Pre-computed Brain Response Atlas for Instantaneous Strain Estimation in Contact Sports" @default.
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- W2010192028 doi "https://doi.org/10.1007/s10439-014-1193-3" @default.
- W2010192028 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4452476" @default.
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