Laksari, K; Wu, L C; Kurt, M; Kuo, C; Camarillo, D C
Resonance of human brain under head acceleration Journal Article
In: Journal of the Royal Society Interface, vol. 12, no. 108, pp. 20150331, 2015.
Abstract | BibTeX | Tags: *Acceleration/ae [Adverse Effects], *BRAIN, *Brain Injuries, *Craniocerebral Trauma, *MAGNETIC resonance imaging, *Skull, adult, Brain Injuries/dg [Diagnostic Imaging], Brain Injuries/pp [Physiopathology], Brain/dg [Diagnostic Imaging], Brain/pp [Physiopathology], Craniocerebral Trauma/dg [Diagnostic Imaging], Craniocerebral Trauma/pp [Physiopathology], Humans, Male, Radiography, Skull/dg [Diagnostic Imaging], Skull/pp [Physiopathology]
@article{Laksari2015,
title = {Resonance of human brain under head acceleration},
author = {Laksari, K and Wu, L C and Kurt, M and Kuo, C and Camarillo, D C},
year = {2015},
date = {2015-01-01},
journal = {Journal of the Royal Society Interface},
volume = {12},
number = {108},
pages = {20150331},
abstract = {Although safety standards have reduced fatal head trauma due to single severe head impacts, mild trauma from repeated head exposures may carry risks of long-term chronic changes in the brain's function and structure. To study the physical sensitivities of the brain to mild head impacts, we developed the first dynamic model of the skull-brain based on in vivo MRI data. We showed that the motion of the brain can be described by a rigid-body with constrained kinematics. We further demonstrated that skull-brain dynamics can be approximated by an under-damped system with a low-frequency resonance at around 15 Hz. Furthermore, from our previous field measurements, we found that head motions in a variety of activities, including contact sports, show a primary frequency of less than 20 Hz. This implies that typical head exposures may drive the brain dangerously close to its mechanical resonance and lead to amplified brain-skull relative motions. Our results suggest a possible cause for mild brain trauma, which could occur due to repetitive low-acceleration head oscillations in a variety of recreational and occupational activities. Copyright © 2015 The Author(s) Published by the Royal Society. All rights reserved.},
keywords = {*Acceleration/ae [Adverse Effects], *BRAIN, *Brain Injuries, *Craniocerebral Trauma, *MAGNETIC resonance imaging, *Skull, adult, Brain Injuries/dg [Diagnostic Imaging], Brain Injuries/pp [Physiopathology], Brain/dg [Diagnostic Imaging], Brain/pp [Physiopathology], Craniocerebral Trauma/dg [Diagnostic Imaging], Craniocerebral Trauma/pp [Physiopathology], Humans, Male, Radiography, Skull/dg [Diagnostic Imaging], Skull/pp [Physiopathology]},
pubstate = {published},
tppubtype = {article}
}
Raukar, N; Chao, L
Concussion: a primer for the physician Journal Article
In: Rhode Island Medicine, vol. 98, no. 6, pp. 27–29, 2015.
BibTeX | Tags: *Brain Concussion/co [Complications], *Brain Concussion/pp [Physiopathology], *Brain Concussion/th [Therapy], *Sports Medicine/st [Standards], Alzheimer Disease/ep [Epidemiology], Athletes, Brain/pp [Physiopathology], Humans, Schools
@article{Raukar2015,
title = {Concussion: a primer for the physician},
author = {Raukar, N and Chao, L},
year = {2015},
date = {2015-01-01},
journal = {Rhode Island Medicine},
volume = {98},
number = {6},
pages = {27--29},
keywords = {*Brain Concussion/co [Complications], *Brain Concussion/pp [Physiopathology], *Brain Concussion/th [Therapy], *Sports Medicine/st [Standards], Alzheimer Disease/ep [Epidemiology], Athletes, Brain/pp [Physiopathology], Humans, Schools},
pubstate = {published},
tppubtype = {article}
}
Chun, I Y; Mao, X; Breedlove, E L; Leverenz, L J; Nauman, E A; Talavage, T M
DTI Detection of Longitudinal WM Abnormalities Due to Accumulated Head Impacts Journal Article
In: Developmental Neuropsychology, vol. 40, no. 2, pp. 92–97, 2015.
Abstract | BibTeX | Tags: *Athletic Injuries/pa [Pathology], *Craniocerebral Trauma/pp [Physiopathology], *Diffusion Magnetic Resonance Imaging/mt [Methods], *Football/in [Injuries], *White Matter/ab [Abnormalities], *White Matter/pp [Physiopathology], Adolescent, Athletes, Brain Concussion/di [Diagnosis], Brain Concussion/pp [Physiopathology], Brain/pp [Physiopathology], Brain/ra [Radiography], Craniocerebral Trauma/di [Diagnosis], Head, Humans, Schools, Time Factors, White Matter/pa [Pathology]
@article{Chun2015,
title = {DTI Detection of Longitudinal WM Abnormalities Due to Accumulated Head Impacts},
author = {Chun, I Y and Mao, X and Breedlove, E L and Leverenz, L J and Nauman, E A and Talavage, T M},
year = {2015},
date = {2015-01-01},
journal = {Developmental Neuropsychology},
volume = {40},
number = {2},
pages = {92--97},
abstract = {Longitudinal evaluation using diffusion-weighted imaging and collision event monitoring was performed on high school athletes who participate in American football. Observed changes in white matter health were suggestive of injury and found to be correlated with accumulation of head collision events during practices and games.},
keywords = {*Athletic Injuries/pa [Pathology], *Craniocerebral Trauma/pp [Physiopathology], *Diffusion Magnetic Resonance Imaging/mt [Methods], *Football/in [Injuries], *White Matter/ab [Abnormalities], *White Matter/pp [Physiopathology], Adolescent, Athletes, Brain Concussion/di [Diagnosis], Brain Concussion/pp [Physiopathology], Brain/pp [Physiopathology], Brain/ra [Radiography], Craniocerebral Trauma/di [Diagnosis], Head, Humans, Schools, Time Factors, White Matter/pa [Pathology]},
pubstate = {published},
tppubtype = {article}
}
Laksari, K; Wu, L C; Kurt, M; Kuo, C; Camarillo, D C
Resonance of human brain under head acceleration Journal Article
In: Journal of the Royal Society Interface, vol. 12, no. 108, pp. 20150331, 2015.
@article{Laksari2015,
title = {Resonance of human brain under head acceleration},
author = {Laksari, K and Wu, L C and Kurt, M and Kuo, C and Camarillo, D C},
year = {2015},
date = {2015-01-01},
journal = {Journal of the Royal Society Interface},
volume = {12},
number = {108},
pages = {20150331},
abstract = {Although safety standards have reduced fatal head trauma due to single severe head impacts, mild trauma from repeated head exposures may carry risks of long-term chronic changes in the brain's function and structure. To study the physical sensitivities of the brain to mild head impacts, we developed the first dynamic model of the skull-brain based on in vivo MRI data. We showed that the motion of the brain can be described by a rigid-body with constrained kinematics. We further demonstrated that skull-brain dynamics can be approximated by an under-damped system with a low-frequency resonance at around 15 Hz. Furthermore, from our previous field measurements, we found that head motions in a variety of activities, including contact sports, show a primary frequency of less than 20 Hz. This implies that typical head exposures may drive the brain dangerously close to its mechanical resonance and lead to amplified brain-skull relative motions. Our results suggest a possible cause for mild brain trauma, which could occur due to repetitive low-acceleration head oscillations in a variety of recreational and occupational activities. Copyright © 2015 The Author(s) Published by the Royal Society. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Raukar, N; Chao, L
Concussion: a primer for the physician Journal Article
In: Rhode Island Medicine, vol. 98, no. 6, pp. 27–29, 2015.
@article{Raukar2015,
title = {Concussion: a primer for the physician},
author = {Raukar, N and Chao, L},
year = {2015},
date = {2015-01-01},
journal = {Rhode Island Medicine},
volume = {98},
number = {6},
pages = {27--29},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Chun, I Y; Mao, X; Breedlove, E L; Leverenz, L J; Nauman, E A; Talavage, T M
DTI Detection of Longitudinal WM Abnormalities Due to Accumulated Head Impacts Journal Article
In: Developmental Neuropsychology, vol. 40, no. 2, pp. 92–97, 2015.
@article{Chun2015,
title = {DTI Detection of Longitudinal WM Abnormalities Due to Accumulated Head Impacts},
author = {Chun, I Y and Mao, X and Breedlove, E L and Leverenz, L J and Nauman, E A and Talavage, T M},
year = {2015},
date = {2015-01-01},
journal = {Developmental Neuropsychology},
volume = {40},
number = {2},
pages = {92--97},
abstract = {Longitudinal evaluation using diffusion-weighted imaging and collision event monitoring was performed on high school athletes who participate in American football. Observed changes in white matter health were suggestive of injury and found to be correlated with accumulation of head collision events during practices and games.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Laksari, K; Wu, L C; Kurt, M; Kuo, C; Camarillo, D C
Resonance of human brain under head acceleration Journal Article
In: Journal of the Royal Society Interface, vol. 12, no. 108, pp. 20150331, 2015.
Abstract | BibTeX | Tags: *Acceleration/ae [Adverse Effects], *BRAIN, *Brain Injuries, *Craniocerebral Trauma, *MAGNETIC resonance imaging, *Skull, adult, Brain Injuries/dg [Diagnostic Imaging], Brain Injuries/pp [Physiopathology], Brain/dg [Diagnostic Imaging], Brain/pp [Physiopathology], Craniocerebral Trauma/dg [Diagnostic Imaging], Craniocerebral Trauma/pp [Physiopathology], Humans, Male, Radiography, Skull/dg [Diagnostic Imaging], Skull/pp [Physiopathology]
@article{Laksari2015,
title = {Resonance of human brain under head acceleration},
author = {Laksari, K and Wu, L C and Kurt, M and Kuo, C and Camarillo, D C},
year = {2015},
date = {2015-01-01},
journal = {Journal of the Royal Society Interface},
volume = {12},
number = {108},
pages = {20150331},
abstract = {Although safety standards have reduced fatal head trauma due to single severe head impacts, mild trauma from repeated head exposures may carry risks of long-term chronic changes in the brain's function and structure. To study the physical sensitivities of the brain to mild head impacts, we developed the first dynamic model of the skull-brain based on in vivo MRI data. We showed that the motion of the brain can be described by a rigid-body with constrained kinematics. We further demonstrated that skull-brain dynamics can be approximated by an under-damped system with a low-frequency resonance at around 15 Hz. Furthermore, from our previous field measurements, we found that head motions in a variety of activities, including contact sports, show a primary frequency of less than 20 Hz. This implies that typical head exposures may drive the brain dangerously close to its mechanical resonance and lead to amplified brain-skull relative motions. Our results suggest a possible cause for mild brain trauma, which could occur due to repetitive low-acceleration head oscillations in a variety of recreational and occupational activities. Copyright © 2015 The Author(s) Published by the Royal Society. All rights reserved.},
keywords = {*Acceleration/ae [Adverse Effects], *BRAIN, *Brain Injuries, *Craniocerebral Trauma, *MAGNETIC resonance imaging, *Skull, adult, Brain Injuries/dg [Diagnostic Imaging], Brain Injuries/pp [Physiopathology], Brain/dg [Diagnostic Imaging], Brain/pp [Physiopathology], Craniocerebral Trauma/dg [Diagnostic Imaging], Craniocerebral Trauma/pp [Physiopathology], Humans, Male, Radiography, Skull/dg [Diagnostic Imaging], Skull/pp [Physiopathology]},
pubstate = {published},
tppubtype = {article}
}
Raukar, N; Chao, L
Concussion: a primer for the physician Journal Article
In: Rhode Island Medicine, vol. 98, no. 6, pp. 27–29, 2015.
BibTeX | Tags: *Brain Concussion/co [Complications], *Brain Concussion/pp [Physiopathology], *Brain Concussion/th [Therapy], *Sports Medicine/st [Standards], Alzheimer Disease/ep [Epidemiology], Athletes, Brain/pp [Physiopathology], Humans, Schools
@article{Raukar2015,
title = {Concussion: a primer for the physician},
author = {Raukar, N and Chao, L},
year = {2015},
date = {2015-01-01},
journal = {Rhode Island Medicine},
volume = {98},
number = {6},
pages = {27--29},
keywords = {*Brain Concussion/co [Complications], *Brain Concussion/pp [Physiopathology], *Brain Concussion/th [Therapy], *Sports Medicine/st [Standards], Alzheimer Disease/ep [Epidemiology], Athletes, Brain/pp [Physiopathology], Humans, Schools},
pubstate = {published},
tppubtype = {article}
}
Chun, I Y; Mao, X; Breedlove, E L; Leverenz, L J; Nauman, E A; Talavage, T M
DTI Detection of Longitudinal WM Abnormalities Due to Accumulated Head Impacts Journal Article
In: Developmental Neuropsychology, vol. 40, no. 2, pp. 92–97, 2015.
Abstract | BibTeX | Tags: *Athletic Injuries/pa [Pathology], *Craniocerebral Trauma/pp [Physiopathology], *Diffusion Magnetic Resonance Imaging/mt [Methods], *Football/in [Injuries], *White Matter/ab [Abnormalities], *White Matter/pp [Physiopathology], Adolescent, Athletes, Brain Concussion/di [Diagnosis], Brain Concussion/pp [Physiopathology], Brain/pp [Physiopathology], Brain/ra [Radiography], Craniocerebral Trauma/di [Diagnosis], Head, Humans, Schools, Time Factors, White Matter/pa [Pathology]
@article{Chun2015,
title = {DTI Detection of Longitudinal WM Abnormalities Due to Accumulated Head Impacts},
author = {Chun, I Y and Mao, X and Breedlove, E L and Leverenz, L J and Nauman, E A and Talavage, T M},
year = {2015},
date = {2015-01-01},
journal = {Developmental Neuropsychology},
volume = {40},
number = {2},
pages = {92--97},
abstract = {Longitudinal evaluation using diffusion-weighted imaging and collision event monitoring was performed on high school athletes who participate in American football. Observed changes in white matter health were suggestive of injury and found to be correlated with accumulation of head collision events during practices and games.},
keywords = {*Athletic Injuries/pa [Pathology], *Craniocerebral Trauma/pp [Physiopathology], *Diffusion Magnetic Resonance Imaging/mt [Methods], *Football/in [Injuries], *White Matter/ab [Abnormalities], *White Matter/pp [Physiopathology], Adolescent, Athletes, Brain Concussion/di [Diagnosis], Brain Concussion/pp [Physiopathology], Brain/pp [Physiopathology], Brain/ra [Radiography], Craniocerebral Trauma/di [Diagnosis], Head, Humans, Schools, Time Factors, White Matter/pa [Pathology]},
pubstate = {published},
tppubtype = {article}
}