BLAST-INDUCED CEREBROVASCULAR AND BRAIN INJURY

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Release : 2017
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BLAST-INDUCED CEREBROVASCULAR AND BRAIN INJURY - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook BLAST-INDUCED CEREBROVASCULAR AND BRAIN INJURY write by Soroush Assari. This book was released on 2017. BLAST-INDUCED CEREBROVASCULAR AND BRAIN INJURY available in PDF, EPUB and Kindle. The focus of this dissertation was the biomechanics of blast-induced traumatic brain injury (bTBI). This study had three specific aims. One of the specific aims was to investigate the thoracic mechanism of bTBI by characterizing the cerebral blood pressure change during local blast exposure to head or chest in a rat model. This model utilized a shock tube to simulate the blast wave. The results showed that there is a blood pressure rise with high amplitude and short duration during both Head-Only and Chest-Only exposure conditions. It was shown that cerebral blood pressure rise was significantly higher in Chest-Only exposure, and resulted in astrocyte reactivation, and infiltration of blood-borne macrophages into the brain. It was concluded that due to chest exposure to a blast wave, high amplitude pressure waves that transfer from thoracic large vessels to cerebrovasculature can lead to blood-brain barrier disruption or perivascular injury and consequently trigger secondary neuronal damage. The second and third aims were related to the viscoelasticity and heterogeneity of brain tissue respectively for blast rate loading conditions. For the second specific aim, a novel test method was developed to apply shear deformation to samples of brain tissue with strain rates in the range of 300 to 1000 s-1. The results of shear tests on cylindrical samples of bovine brain showed that the instantaneous shear modulus (about 6 kPa) increased about 3 times compared to the values reported in the literature. For the third specific aim, local viscoelastic behavior of rat brain was characterized using a micro-indentation setup with the spatial resolution of 350 mm. The results of micro-indentation tests showed that the heterogeneity of brain tissue was more pronounced in long-term shear moduli. Moreover, the inner anatomical regions were generally more compliant than the outer regions and the gray matter generally exhibited a stiffer response than the white matter. The results of this study can enhance the prediction of brain injury in finite element models of TBI in general and models of bTBI in particular. These results contribute to development of more biofidelic models that can determine the extent and severity of injury in blast loadings. Such predictions are essential for designing better injury mitigation devices for soldiers and also for improving neurosurgical procedures among other applications.

Neurotrauma

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Release : 1996
Genre : Medical
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Book Rating : 624/5 ( reviews)

Neurotrauma - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Neurotrauma write by Raj K. Narayan. This book was released on 1996. Neurotrauma available in PDF, EPUB and Kindle. This reference is a comprehensive work in the field of neurotrauma and critical care. It incorporates the fields of head injury, spinal injury and basic neurotrauma research into one source. The major emphasis is on the treatment of patients with head and spinal cord injury, including the management of all other problems that bear upon the care of these patients.

Brain Neurotrauma

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Release : 2015-02-25
Genre : Medical
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Book Rating : 993/5 ( reviews)

Brain Neurotrauma - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Brain Neurotrauma write by Firas H. Kobeissy. This book was released on 2015-02-25. Brain Neurotrauma available in PDF, EPUB and Kindle. With the contribution from more than one hundred CNS neurotrauma experts, this book provides a comprehensive and up-to-date account on the latest developments in the area of neurotrauma including biomarker studies, experimental models, diagnostic methods, and neurotherapeutic intervention strategies in brain injury research. It discusses neurotrauma mechanisms, biomarker discovery, and neurocognitive and neurobehavioral deficits. Also included are medical interventions and recent neurotherapeutics used in the area of brain injury that have been translated to the area of rehabilitation research. In addition, a section is devoted to models of milder CNS injury, including sports injuries.

Translational Research in Traumatic Brain Injury

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Release : 2016-04-21
Genre : Medical
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Book Rating : 579/5 ( reviews)

Translational Research in Traumatic Brain Injury - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Translational Research in Traumatic Brain Injury write by Daniel Laskowitz. This book was released on 2016-04-21. Translational Research in Traumatic Brain Injury available in PDF, EPUB and Kindle. Traumatic brain injury (TBI) remains a significant source of death and permanent disability, contributing to nearly one-third of all injury related deaths in the United States and exacting a profound personal and economic toll. Despite the increased resources that have recently been brought to bear to improve our understanding of TBI, the developme

Brain Injury: Applications from War and Terrorism

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Release : 2014-04-09
Genre : Medical
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Book Rating : 52X/5 ( reviews)

Brain Injury: Applications from War and Terrorism - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Brain Injury: Applications from War and Terrorism write by Alisa D. Gean. This book was released on 2014-04-09. Brain Injury: Applications from War and Terrorism available in PDF, EPUB and Kindle. Brain Injury: Applications from War and Terrorism is a single-authored book written by a world-class neuroradiologist with extensive experience in traumatic brain injury (TBI). It features six graphic-intense chapters depicting and expounding upon the complexity of TBI. Culled from nearly three decades of studying civilian TBI and five years of intensive study of TBI sustained from combat, terrorism, and natural disasters, this work is an exhaustive and innovative authority on the current approaches and applications of civilian and combat TBI. The text is sectored into six chapters based on pathophysiology, each augmented with numerous images and illustrations. The book gives special attention to neuroimaging, but is reinforced with relevant clinical correlation. This monograph is unique because it is first in class as an omnibus for the radiologist, neurologist, neurosurgeon, maxillofacial surgeon, emergency physician, pediatrician, ophthalmologist, and the rehabilitation team. Accompanied by detailed high resolution illustrations with meticulous annotation, Brain Injury: Applications from War and Terrorism contains over 500 curated radiological and clinical images that enhance the concepts detailed in each chapter. Complete with up-to-date references, it is a state of the art resource guide for any member of the team of professionals caring for those who have sustained a traumatic brain injury In the foreword, Bob Woodruff writes - “After the September 11 attacks, [Dr. Gean] realized the significant void in our understanding of brain Injury caused by war and terrorism (and) she was motivated to devote the last four years of her academic pursuits to understanding the similarities and differences between civilian TBI and TBI suffered in war, terrorism, and natural disasters... This extraordinary, magnificently illustrated and unique single-authored textbook, Brain Injury: Applications from War and Terrorism,is the culmination of Dr. Gean’s dedication and experience. It’s really not just a book – it is a telegraphed documentary of a lifelong conviction to recognizing and responding to TBI by an acknowledged global expert.”