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TBI Neuroimaging

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https://www.readbyqxmd.com/read/28538329/perioperative-care-for-pediatric-patients-with-penetrating-brain-injury-a-review
#1
Marco Mikhael, Elizabeth Frost, Maria Cristancho
Traumatic brain injury (TBI) continues to be the leading cause of death and acquired disability in young children and adolescents, due to blunt or penetrating trauma, the latter being less common but more lethal. Penetrating brain injury (PBI) has not been studied extensively, mainly reported as case reports or case series, due to the assumption that both types of brain injury have common pathophysiology and consequently common management. However, recommendations and guidelines for the management of PBI differ from those of blunt TBI in regards to neuroimaging, intracranial pressure (ICP) monitoring, and surgical management including those pertaining to vascular injury...
May 19, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28390522/research-frontiers-in-traumatic-brain-injury-defining-the-injury
#2
REVIEW
Andrew J Gardner, Shirley L Shih, Elizabeth V Adamov, Ross D Zafonte
With the continued advancement in technology, such as increasingly sophisticated neuroimaging parameters, and the ongoing development of various scientific fields, like serum and blood biomarkers, genetics, and physiology, traumatic brain injury (TBI) research is a dynamic field of study. TBI remains a significant public health concern and research has continued to grow exponentially over the past decade. This review provides an overview of the frontiers of TBI research, from sports concussion to severe TBI, from acute and subacute injury to long-term/chronic outcomes, from assessment and management to prognosis, specifically examining recent neuroimaging, biomarkers, genetics, and physiologic studies...
May 2017: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/28381654/disorder-of-executive-function-of-the-brain-after-head-injury-and-mild-traumatic-brain-injury-neuroimaging-and-diagnostic-criteria-for-implementation-of-administrative-support-in-japan
#3
Jun Shinoda, Yoshitaka Asano
The diagnotic criteria for disorder of the executive function of the brain (DEFB) as a syndrome of sequela were administratively established (ad-DEFB) in Japan in 2006 to support disabled patients whose impairment, limited to cognition (memory, attention, execution, and behavior), emerges after organic brain injuries regardless of physical deficits. However, some patients suffering from traumatic brain injury (TBI) have been excluded from receiving medico-social services. In particular, this tendency is more prominent in patients with mild TBI because no lesions are apparent on conventional computed tomography (CT) or magnetic resonance imaging (MRI) in the chronic phase...
April 6, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28373856/investigating-microstructural-abnormalities-and-neurocognition-in-sub-acute-and-chronic-traumatic-brain-injury-patients-with-normal-appearing-white-matter-a-preliminary-diffusion-tensor-imaging-study
#4
Eyesha Hashim, Eduardo Caverzasi, Nico Papinutto, Caroline E Lewis, Ruiwei Jing, Onella Charles, Shudong Zhang, Amy Lin, Simon J Graham, Tom A Schweizer, Aditya Bharatha, Michael D Cusimano
For a significant percentage of subjects, with chronic traumatic brain injury (TBI), who report persisting cognitive impairment and functional loss, the diagnosis is often impeded by the fact that routine neuroimaging often does not reveal any abnormalities. In this paper, we used diffusion tensor imaging (DTI) to investigate the apparently normal white matter (as assessed by routine magnetic resonance imaging) in the brains of 19 subjects with sub-acute (9) and chronic (10) TBI. We also assessed memory, executive function, and visual-motor coordination in these subjects...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28363253/the-traumatic-brain-injury-endpoints-development-ted-initiative-progress-on-a-public-private-regulatory-collaboration-to-accelerate-diagnosis-and-treatment-of-traumatic-brain-injury
#5
Geoffrey T Manley, Christine L MacDonald, Amy Markowitz, Diane Stephenson, Ann Robbins, Raquel C Gardner, Ethan A Winkler, Yelena Bodien, Sabrina Taylor, John K Yue, Lakshmi Kannan, Allison Kumar, Michael McCrea, Kevin K W Wang
The Traumatic Brain Injury Endpoints Development (TED) Initiative is a 5-year, Department of Defense (DoD) funded project that is working toward the ultimate goal of developing better designed clinical trials, leading to more precise diagnosis, and effective treatments for traumatic brain injury (TBI). TED is comprised of leading academic clinician-scientists, along with innovative industry leaders in biotechnology and imaging technology, patient advocacy organizations, and philanthropists, working collaboratively with regulatory authorities, specifically the US Food and Drug Administration (FDA)...
March 31, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28355230/a-blood-based-biomarker-panel-to-risk-stratify-mild-traumatic-brain-injury
#6
Richa Sharma, Alexandra Rosenberg, Ellen R Bennett, Daniel T Laskowitz, Shawn K Acheson
Mild traumatic brain injury (TBI) accounts for the vast majority of the nearly two million brain injuries suffered in the United States each year. Mild TBI is commonly classified as complicated (radiographic evidence of intracranial injury) or uncomplicated (radiographically negative). Such a distinction is important because it helps to determine the need for further neuroimaging, potential admission, or neurosurgical intervention. Unfortunately, imaging modalities such as computed tomography (CT) and magnetic resonance imaging (MRI) are costly and not without some risk...
2017: PloS One
https://www.readbyqxmd.com/read/28337475/age-at-injury-is-associated-with-the-long-term-cognitive-outcome-of-traumatic-brain-injuries
#7
Wei Li, Shannon L Risacher, Thomas W McAllister, Andrew J Saykin
INTRODUCTION: The association between age at injury (AAI) and long-term cognitive outcome of traumatic brain injuries (TBI) is debatable. METHODS: Eligible participants with a history of TBI from Alzheimer's Disease Neuroimaging Initiative were divided into a childhood TBI (cTBI) group (the AAI ≤ 21 years old) and an adult TBI (aTBI) group (the AAI > 21 years old). RESULTS: The cTBI group has a higher Everyday Cognition total score than the aTBI group...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28316319/epileptic-spasms-in-paediatric-post-traumatic-epilepsy-at-a-tertiary-referral-centre
#8
Jun T Park, Harry T Chugani
To recognize epileptic spasms (ES) as a seizure type after traumatic brain injury (TBI), accidental or non-accidental, in infants and children. In the process, we aim to gain some insight into the mechanisms of epileptogenesis in ES. A retrospective electronic chart review was performed at the Children's Hospital of Michigan from 2002 to 2012. Electronic charts of 321 patients were reviewed for evidence of post-traumatic epilepsy. Various clinical variables were collected including age at TBI, mechanism of trauma, severity of brain injury, electroencephalography/neuroimaging data, and seizure semiology...
March 17, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28281095/a-national-study-on-the-effects-of-concussion-in-collegiate-athletes-and-us-military-service-academy-members-the-ncaa-dod-concussion-assessment-research-and-education-care-consortium-structure-and-methods
#9
Steven P Broglio, Michael McCrea, Thomas McAllister, Jaroslaw Harezlak, Barry Katz, Dallas Hack, Brian Hainline
BACKGROUND: The natural history of mild traumatic brain injury (TBI) or concussion remains poorly defined and no objective biomarker of physiological recovery exists for clinical use. The National Collegiate Athletic Association (NCAA) and the US Department of Defense (DoD) established the Concussion Assessment, Research and Education (CARE) Consortium to study the natural history of clinical and neurobiological recovery after concussion in the service of improved injury prevention, safety and medical care for student-athletes and military personnel...
March 9, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28243574/5-year-imaging-sequelae-of-concussive-blast-injury-and-relation-to-early-clinical-outcome
#10
Christine L Mac Donald, Jason Barber, Jalal Andre, Nicole Evans, Chris Panks, Samantha Sun, Kody Zalewski, R Elizabeth Sanders, Nancy Temkin
Current imaging diagnostic techniques are often insensitive to the underlying pathological changes following mild traumatic brain injury (TBI) or concussion so much so that the explicit definition of these uncomplicated mild brain injuries includes the absence of radiological findings. In the US military, this is complicated by the natural tendency of service members to down play symptoms for fear of removal from their unit particularly in combat making it challenging for clinicians to definitively diagnose and determine course of treatment...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28211592/a-methodology-for-assessing-deployment-trauma-and-its-consequences-in-oef-oif-ond-veterans-the-tracts-longitudinal-prospective-cohort-study
#11
Regina E McGlinchey, William P Milberg, Jennifer R Fonda, Catherine Brawn Fortier
Many US veterans of Afghanistan and Iraq have multiple physical and psychiatric problems. A major focus of research has been on determining the effects of mild Traumatic Brain Injury (mTBI), but mTBI is rarely diagnosed in the absence of co-occurring conditions such as blast exposure, post-traumatic stress disorder (PTSD), depression, substance abuse, etc. These potentially interactive psychological and physical conditions produce complex patterns of cognitive, psychological, and physical symptoms that impede civilian reintegration and complicate efficient and effective treatment planning...
February 17, 2017: International Journal of Methods in Psychiatric Research
https://www.readbyqxmd.com/read/28210542/dynamic-association-between-perfusion-and-white-matter-integrity-across-time-since-injury-in-veterans-with-history-of-tbi
#12
Alexandra L Clark, Katherine J Bangen, Scott F Sorg, Dawn M Schiehser, Nicole D Evangelista, Benjamin McKenna, Thomas T Liu, Lisa Delano-Wood
OBJECTIVE: Cerebral blood flow (CBF) plays a critical role in the maintenance of neuronal integrity, and CBF alterations have been linked to deleterious white matter changes. Although both CBF and white matter microstructural alterations have been observed within the context of traumatic brain injury (TBI), the degree to which these pathological changes relate to one another and whether this association is altered by time since injury have not been examined. The current study therefore sought to clarify associations between resting CBF and white matter microstructure post-TBI...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28207508/concussion-mild-traumatic-brain-injury-related-chronic-pain-in-males-and-females-a-diagnostic-modelling-study
#13
Tatyana Mollayeva, J David Cassidy, Colin M Shapiro, Shirin Mollayeva, Angela Colantonio
Pain is an unpleasant, complex, and perceived experience that places a significant burden on patients and clinicians. Its severity may be mediated by emotion, attitude, and environmental influences, and pain may be expressed differently in males and females. Traumatic brain injury (TBI) is frequently associated with chronic pain. This diagnostic modeling study examined sex differences in the construct of chronic pain in patients with delayed recovery from concussion/mild traumatic brain injury (mTBI).Data were collected from standardized questionnaires, neuroimaging records, and comprehensive clinical assessments...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28187802/critical-care-management-of-traumatic-brain-injury
#14
REVIEW
D K Menon, A Ercole
Traumatic brain injury (TBI) is a growing global problem, which is responsible for a substantial burden of disability and death, and which generates substantial healthcare costs. High-quality intensive care can save lives and improve the quality of outcome. TBI is extremely heterogeneous in terms of clinical presentation, pathophysiology, and outcome. Current approaches to the critical care management of TBI are not underpinned by high-quality evidence, and many of the current therapies in use have not shown benefit in randomized control trials...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28170143/prevalence-of-brain-injuries-and-recurrence-of-seizures-in-children-with-posttraumatic-seizures
#15
Mohamed K Badawy, Peter S Dayan, Michael G Tunik, Frances M Nadel, Kathleen A Lillis, Michelle Miskin, Dominic A Borgialli, Michael C Bachman, Shireen M Atabaki, John D Hoyle, James F Holmes, Nathan Kuppermann
OBJECTIVES: Computed tomography (CT) is often used in the emergency department (ED) evaluation of children with posttraumatic seizures (PTS); however, the frequency of traumatic brain injuries (TBIs) and short-term seizure recurrence is lacking. Our main objective was to evaluate the frequency of TBIs on CT and short-term seizure recurrence in children with PTS. We also aimed to determine the associations between the likelihood of TBI on CT with the timing of onset of PTS after the traumatic event and duration of PTS...
May 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28128026/amide-proton-transfer-weighted-mri-detection-of-traumatic-brain-injury-in-rats
#16
Hong Zhang, Wenzhu Wang, Shanshan Jiang, Yi Zhang, Hye-Young Heo, Xianlong Wang, Yun Peng, Jian Wang, Jinyuan Zhou
The purpose of this study was to explore the capability and uniqueness of amide proton transfer-weighted (APTw) imaging in the detection of primary and secondary injury after controlled cortical impact (CCI)-induced traumatic brain injury (TBI) in rats. Eleven adult rats had craniotomy plus CCI surgery under isoflurane anesthesia. Multi-parameter MRI data were acquired at 4.7 T, at eight time points (1, 6 h, and 1, 2, 3, 7, 14, and 28 days after TBI). At one and six hours post-injury, average APTw signal intensities decreased significantly in the impacted and peri-lesional areas due to tissue acidosis...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28095735/criterion-validity-of-the-d-kefs-color-word-and-verbal-fluency-switching-paradigms-following-traumatic-brain-injury
#17
Luke B Anderson, Rebekah Jaroh, Hillary Smith, Carrie-Ann H Strong, Jacobus Donders
The present study was composed of two parts examining the clinical utility of the Delis-Kaplan Executive Function System (D-KEFS) Verbal Fluency and Color-Word subtests in traumatic brain injury (TBI). In the first part, the performance of 128 outpatients with mild to severe TBI on the Verbal Fluency and Color-Word subtests was examined in relation to two primary indicators of TBI severity: length of coma and the presence of intracranial lesions on neuroimaging through regression analysis. After controlling for education, ethnicity, and complicating premorbid and comorbid factors, length of coma predicted performance on the Color-Word Inhibition/Switching subtest, whereas the presence of diffuse lesions was related to Verbal Fluency Category Switching performance...
January 17, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28092022/relevance-of-neuroimaging-for-neurocognitive-and-behavioral-outcome-after-pediatric-traumatic-brain-injury
#18
Marsh Königs, Petra Jw Pouwels, L W Ernest van Heurn, Roel Bakx, R Jeroen Vermeulen, J Carel Goslings, Bwee Tien Poll-The, Marleen van der Wees, Coriene E Catsman-Berrevoets, Jaap Oosterlaan
This study aims to (1) investigate the neuropathology of mild to severe pediatric TBI and (2) elucidate the predictive value of conventional and innovative neuroimaging for functional outcome. Children aged 8-14 years with trauma control (TC) injury (n = 27) were compared to children with mild TBI and risk factors for complicated TBI (mild(RF+), n = 20) or moderate/severe TBI (n = 17) at 2.8 years post-injury. Neuroimaging measures included: acute computed tomography (CT), volumetric analysis on post-acute conventional T1-weighted magnetic resonance imaging (MRI) and post-acute diffusion tensor imaging (DTI, analyzed using tract-based spatial statistics and voxel-wise regression)...
January 14, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28076834/risk-factors-for-posttraumatic-epilepsy-a-systematic-review-and-meta-analysis
#19
REVIEW
Tao Xu, Xinyuan Yu, Shu Ou, Xi Liu, Jinxian Yuan, Hao Huang, Juan Yang, Liang He, Yangmei Chen
OBJECTIVE: A systematic review and meta-analysis was performed to identify risk factors for posttraumatic epilepsy (PTE). METHODS: Two electronic databases (Medline and Embase) were searched to identify studies with a cohort, case-control, or cross-sectional design reporting on epidemiologic evidence regarding risk factors for PTE. RESULTS: Men had a higher risk of developing PTE than women [relative ratio (RR), 1.32; 95% confidence interval (CI), 1...
February 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28007768/toward-precision-and-reproducibility-of-diffusion-tensor-imaging-a-multicenter-diffusion-phantom-and-traveling-volunteer-study
#20
E M Palacios, A J Martin, M A Boss, F Ezekiel, Y S Chang, E L Yuh, M J Vassar, D M Schnyer, C L MacDonald, K L Crawford, A Irimia, A W Toga, P Mukherjee
BACKGROUND AND PURPOSE: Precision medicine is an approach to disease diagnosis, treatment, and prevention that relies on quantitative biomarkers that minimize the variability of individual patient measurements. The aim of this study was to assess the intersite variability after harmonization of a high-angular-resolution 3T diffusion tensor imaging protocol across 13 scanners at the 11 academic medical centers participating in the Transforming Research and Clinical Knowledge in Traumatic Brain Injury multisite study...
March 2017: AJNR. American Journal of Neuroradiology
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