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Iqbal S, Seth N, Shahraki T, Filippidis A, Selim M, Thomas AJ, Wen Y, Spincemaille P, Wang Y, Soman S. Clinical Performance of Quantitative Susceptibility Mapping in Cerebral Microbleed Detection Relative to 2D GRE. Clin Neuroradiol 2025:10.1007/s00062-025-01529-0. [PMID: 40410397 DOI: 10.1007/s00062-025-01529-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2025] [Accepted: 04/30/2025] [Indexed: 05/25/2025]
Abstract
PURPOSE To evaluate the potential overestimation of cerebral microbleed (CMB) burden by Quantitative Susceptibility Mapping (QSM) compared to 2D gradient recalled echo (2D GRE), as well as the impact of increased motion degradation due to longer scan times, reduced CMB detection from skull-stripping failures, and the relative visibility of CMBs between techniques. METHODS Seventy-nine adult subjects with intracranial hemorrhage underwent same-session brain MRI including 2D GRE and multi-echo GRE for QSM processing, as part of routine clinical care. Images were reviewed by a neuroradiologist and trained research assistant for CMB detection, visibility rating, and anatomical distribution. Motion artifacts and areas of non-visualized brain due to skull-stripping were assessed. Statistical analysis included Wilcoxon signed-rank tests for CMB counts, Mann-Whitney U test for motion assessment, and Fisher's exact testing for anatomical distribution patterns. RESULTS QSM showed no significant difference in median CMB counts compared to 2D GRE (1 vs 2, p = 0.175) with strong correlation (r = 0.879, p < 1.65e-26). No significant difference in motion degradation was found between techniques (p = 0.7465). Skull-stripping failures affected only 2% of candidate CMBs, in 5 of 79 (6%) subjects. QSM-detected CMBs showed superior conspicuity (73 vs 33 better visualized lesions, p = 0.00975) with 261 rated equally visible. QSM identified 26 calcifications in 20 subjects, 25 of which were misclassified as CMBs on 2D GRE. CONCLUSION QSM demonstrates comparable or slightly lower CMB counts than 2D GRE while offering superior lesion conspicuity and ability to distinguish calcifications, supporting its potential clinical implementation for CMB detection.
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Affiliation(s)
- Sabina Iqbal
- 1Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, 02215, Boston, MA, USA
| | - Nikita Seth
- 1Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, 02215, Boston, MA, USA
| | - Tamkin Shahraki
- 1Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, 02215, Boston, MA, USA
| | - Aristotelis Filippidis
- Dept of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 02215, Boston, MA, USA
| | - Magdy Selim
- Dept of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, 02215, Boston, MA, USA
| | - Ajith J Thomas
- Dept of Neurosurgery, Cooper Hospital University Medical Center, Rowan University Cooper Medical School, 08103, Camden, NJ, USA
| | - Yan Wen
- GE Healthcare, 10451, New York, NY, USA
| | | | - Yi Wang
- Dept of Radiology, Weill Cornell Medicine, 10065, New York, USA
| | - Salil Soman
- 1Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, 02215, Boston, MA, USA.
- , Rosenberg B90, 1 Deaconess Road, 02115, Boston, MA, USA.
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Hilario A, Salvador E, Chen ZH, Cárdenas A, Romero J, Ramos A. Imaging findings for severe traumatic brain injury. RADIOLOGIA 2025; 67:331-342. [PMID: 40412846 DOI: 10.1016/j.rxeng.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 05/06/2024] [Indexed: 05/27/2025]
Abstract
Traumatic brain injury (TBI) is the leading cause of morbidity and mortality in young patients. The Marshall classification predicts six-month mortality and divides severe TBI patients into six groups based on CT findings in the acute phase of trauma. MRI also has prognostic value because it detects 30% more traumatic lesions, especially brainstem injury and diffuse axonal injury. Diffuse axonal injury occurs in three different anatomical areas, graded according to severity, and the greater the trauma, the deeper the brain involvement extends. Traumatic brainstem injuries with the worst prognosis are those of posterior location, with bilateral or haemorrhagic involvement. This article analyses the prognostic value of CT and MRI in the assessment of severe TBI and describes the main intracranial traumatic injuries.
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Affiliation(s)
- A Hilario
- Servicio de Radiodiagnóstico, Sección de Neurorradiología, Hospital Universitario 12 de Octubre, Madrid, Spain.
| | - E Salvador
- Servicio de Radiodiagnóstico, Sección de Neurorradiología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Z H Chen
- Servicio de Radiodiagnóstico, Sección de Neurorradiología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - A Cárdenas
- Servicio de Radiodiagnóstico, Sección de Neurorradiología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - J Romero
- Servicio de Radiodiagnóstico, Sección de Neurorradiología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - A Ramos
- Servicio de Radiodiagnóstico, Sección de Neurorradiología, Hospital Universitario 12 de Octubre, Madrid, Spain
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Jellinger KA. Parkinsonism associated with prolonged unresponsive wakefulness syndrome after blunt head injury: a clinico-pathological study. FREE NEUROPATHOLOGY 2025; 6:3. [PMID: 39906544 PMCID: PMC11792656 DOI: 10.17879/freeneuropathology-2025-5982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/23/2024] [Accepted: 11/11/2024] [Indexed: 02/06/2025]
Abstract
Objective: Survival after traumatic brain injury (TBI) and posttraumatic parkinsonian-like symptoms is increasing, in particular in those patients developing during disease course an unresponsive wakefulness syndrome (UWS) previously termed persistent vegetative state. Material & methods: 100 patients with disorders of consciousness after a blunt TBI ranging from deep coma to defective states / minimal cognitive state survived between 12 and 900 days. 15 patients developed parkinsonian symptoms, which were correlated with their neuropathological changes. Results: The patients, surviving either UWS recovery (n = 10) or defective minimally conscious state (MCS) (n = 5), clinically presented with severe (n = 7), moderate (n = 5), or mild (n = 3) parkinsonian symptoms mainly comprising symmetrical rigidity, amimia, hypo- / akinesia and convergence disorder, which in six patients were associated with unilateral or bilateral resting tremor. Following levodopa treatment, 11 patients showed mild to moderate improvement and four patients almost complete improvement of UWS, parkinsonism or both. Neuropathology revealed in most cases supratentorial traumatic lesions such as contusions, cerebral hemorrhages and diffuse white matter lesions. In addition to lesions in the basal ganglia and hippocampus, all cases displayed older lesions in the dorsolateral or lateral parts of the pons and in lower midbrain with various involvement of substantia nigra. The periaqueductal gray and upper midbrain tegmentum were however preserved. The pattern of brainstem lesions correlated with the sequelae of transtentorial shifting due to increased intracranial pressure. Conclusions: These and other rare observations following blunt TBI confirm the importance of the pattern of secondary brainstem lesions for the development and prognosis of UWS and rare parkinson-like symptoms.
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Naeimi A, Aghajanian S, Jafarabady K, Aletaha R, Maroufi SF, Khorasanizadeh M, Stippler M. Prognostic value of computed tomography and magnetic resonance imaging findings in acute traumatic brain injury in prediction of poor neurological outcome and mortality: a systematic review and meta-analysis. Neurosurg Rev 2024; 47:837. [PMID: 39503919 DOI: 10.1007/s10143-024-03071-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 10/16/2024] [Accepted: 10/20/2024] [Indexed: 11/20/2024]
Abstract
Traumatic brain injury (TBI) is a major cause of morbidity and mortality, impacting healthcare systems and economies. Early identification of poor outcomes is crucial for effective treatment. This systematic review assesses the prognostic value of computed tomography (CT) and magnetic resonance imaging (MRI) findings in predicting poor neurological outcomes and mortality in the acute phase of TBI. A comprehensive search of Scopus, MEDLINE, and Web of science databases was performed to identify studies examining CT and MR-based imaging findings and their association with poor outcomes as assessed by Glasgow outcome score as well as mortality within the early acute phase of TBI following injury/admission. Qualitative evaluation of included studies revealed several imaging sequences that modify the outcome of the patients, including extra-axial and intra-axial hemorrhage, swirl sign, contrast extravasation, midline shift, closed and open cranial cisterns, signs of edema, presence of cranial fractures, intracranial hemorrhage, cerebral microbleeds, diffuse axonal injury, apparent diffusion coefficient and fractional anisotropy in diffusion tensor imaging, as well as, concentrations of brain metabolites(N-acetyl aspartate, Creatinine, Choline, Myo-inositol, glutamate, and glutamine) in magnetic resonance spectroscopy. Among these markers, subarachnoid hemorrhage (SAH) and subdural hematoma (SDH) emerged as the most predictive of poor outcomes based on meta-analysis findings. SAH was significantly associated with an increased risk of mortality (OR: 3.35, 95% CI: 2.41-4.65, I²=51.3%) and poor outcomes (OR: 2.69, 95% CI: 2.44-2.96, I²=0%). Similarly, SDH correlated with higher mortality risk (OR: 2.44, 95% CI: 2.14-2.78, I²=0%) and worse outcomes (OR: 2.00, 95% CI: 1.12-3.59, I²=60.9%). In contrast, epidural hematoma (EDH) was linked to better outcomes (OR: 0.60, 95% CI: 0.52-0.68, I²=0%) but not significantly associated with mortality (OR: 0.38, 95% CI: 0.09-1.65, I²=73.7%). The results of this systematic review and meta-analysis provide an overview of clinically feasible imaging markers of prognostic value and may inform clinical decision-making in the future.
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Affiliation(s)
- Arvin Naeimi
- Student Research Committee, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Sepehr Aghajanian
- Neuroscience Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Kyana Jafarabady
- Student Research Committee, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
- Department of Neurosurgery, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Reza Aletaha
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Farzad Maroufi
- Neurosurgical Research Network (NRN), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Martina Stippler
- Division of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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Qu X, Song X, Da L, Zhang C, Zhang Y, Sun Y, Qiao Z, Ha L, Li L, Hu R. Predictors of Outcome After Traumatic Brain Injury: Experience at a Tertiary Healthcare Facility in Inner Mongolia, China. World Neurosurg 2024; 182:e478-e485. [PMID: 38048962 DOI: 10.1016/j.wneu.2023.11.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/24/2023] [Accepted: 11/25/2023] [Indexed: 12/06/2023]
Abstract
BACKGROUND Traumatic brain injury (TBI) is 1 of the leading causes of death in all age groups globally. Understanding TBI causative factors and early interventions that may result in poor outcomes plays an important role in decreasing the mortality and disability associated with TBI. METHODS In this retrospective case-control study, we collected electronic case data from patients with TBI who visited our hospital between 2018 and 2022. We collected patient information from accident to discharge, and by using linear regression predicted factors influencing death from TBI. RESULTS A total of 957 patients with a mean age of 56.4 ± 17.0 years and a Glasgow Coma Scale score of 12 ± 3.7 on admission were included in the study. Of the total, 54 patients died in the hospital. Multifactorial logistic regression showed that the Glasgow Coma Scale scores, degree of injury on admission, surgical treatment, and brainstem hemorrhage all had a significant effect on the survival status of the patients at discharge. CONCLUSIONS Understanding the causes, patterns, and distribution of people with TBI in this study will benefit our country and others to develop policies, research, health management, and rehabilitation tools at the national level.
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Affiliation(s)
- XingBo Qu
- School of Public Health, Inner Mongolia Medical University, Hohhot, China
| | - XiaoMing Song
- Department of Mathematics, School of Mathematical Sciences, Inner Mongolia University, Hohhot, China
| | - Lin Da
- Department of Mathematics, School of Mathematical Sciences, Inner Mongolia University, Hohhot, China
| | - ChunYu Zhang
- Department of Neurology, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Yan Zhang
- Department of Rehabilitation Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - YanDong Sun
- Department of Rehabilitation Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - ZhuoJun Qiao
- Department of Rehabilitation Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - LiYa Ha
- Department of Rehabilitation Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - LanJun Li
- Department of Rehabilitation Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Riletemuer Hu
- Department of Rehabilitation Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China.
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Zamora E, Chun KJ, Zamora C. Neuroimaging in Coma, Brain Death, and Related Conditions. NEUROGRAPHICS 2023; 13:190-209. [DOI: 10.3174/ng.2200001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2025]
Abstract
Coma is a state of unresponsiveness to external stimuli, which can be secondary to a variety of CNS alterations affecting essential neuronal pathways, particularly the ascending reticular activating system. A comprehensive clinical evaluation is necessary for assessment of motor function and brainstem reflexes but is often insufficient for determination of the underlying etiology and extent of injury. Diagnostic brain imaging is typically needed for management and decision-making, particularly in acute settings where prompt diagnosis of reversible/treatable conditions is essential, as well as for prognostication. Understanding the pathophysiologic mechanisms leading to coma and comalike states and their imaging manifestations will enable selection of appropriate modalities and facilitate a clinically relevant interpretation. For evaluation of brain death, diagnostic imaging has a supportive role, and when indicated, selection of an ancillary diagnostic test is based on multiple factors, including susceptibility to confounding factors and specificity, in addition to safety, convenience, and availability.Learning objective: To describe the pathophysiology of alterations of consciousness and discuss the role of neuroimaging modalities in the evaluation of coma, brain death, and associated conditions
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de Oliveira DV, Vieira RDCA, Pipek LZ, de Sousa RMC, de Souza CPE, Santana-Santos E, Paiva WS. Long-Term Outcomes in Severe Traumatic Brain Injury and Associated Factors: A Prospective Cohort Study. J Clin Med 2022; 11:6466. [PMID: 36362693 PMCID: PMC9655294 DOI: 10.3390/jcm11216466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/14/2022] [Accepted: 10/26/2022] [Indexed: 04/03/2024] Open
Abstract
OBJECTIVE The presence of focal lesion (FL) after a severe traumatic brain injury is an important factor in determining morbidity and mortality. Despite this relevance, few studies show the pattern of recovery of patients with severe traumatic brain injury (TBI) with FL within one year. The objective of this study was to identify the pattern of recovery, independence to perform activities of daily living (ADL), and factors associated with mortality and unfavorable outcome at six and twelve months after severe TBI with FL. METHODOLOGY This is a prospective cohort, with data collected at admission, hospital discharge, three, six, and twelve months after TBI. RESULTS The study included 131 adults with a mean age of 34.08 years. At twelve months, 39% of the participants died, 80% were functionally independent by the Glasgow Outcome Scale Extended, 79% by the Disability Rating Scale, 79% were independent for performing ADLs by the Katz Index, and 53.9% by the Lawton Scale. Report of alcohol intake, sedation time, length of stay in intensive care (ICU LOS), Glasgow Coma Scale, trauma severity indices, hyperglycemia, blood glucose, and infection were associated with death. At six and twelve months, tachypnea, age, ICU LOS, trauma severity indices, respiratory rate, multiple radiographic injuries, and cardiac rate were associated with dependence. CONCLUSIONS Patients have satisfactory functional recovery up to twelve months after trauma, with an accentuated improvement in the first three months. Clinical and sociodemographic variables were associated with post-trauma outcomes. Almost all victims of severe TBI with focal lesions evolved to death or independence.
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Affiliation(s)
- Daniel Vieira de Oliveira
- Hospital das Clínicas, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, Sao Paulo 05403-010, SP, Brazil
| | | | - Leonardo Zumerkorn Pipek
- Hospital das Clínicas, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, Sao Paulo 05403-010, SP, Brazil
| | | | | | | | - Wellingson Silva Paiva
- Hospital das Clínicas, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Rua Dr. Enéas de Carvalho Aguiar, 255, Sao Paulo 05403-010, SP, Brazil
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Janas AM, Qin F, Hamilton S, Jiang B, Baier N, Wintermark M, Threlkeld Z, Lee S. Diffuse Axonal Injury Grade on Early MRI is Associated with Worse Outcome in Children with Moderate-Severe Traumatic Brain Injury. Neurocrit Care 2021; 36:492-503. [PMID: 34462880 PMCID: PMC8405042 DOI: 10.1007/s12028-021-01336-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 08/16/2021] [Indexed: 01/15/2023]
Abstract
Background Traumatic brain injury (TBI) is the leading cause of death and disability in children, but effective tools for predicting outcome remain elusive. Although many pediatric patients receive early magnetic resonance imaging (MRI), data on its utility in prognostication are lacking. Diffuse axonal injury (DAI) is a hallmark of TBI detected on early MRI and was shown previously to improve prognostication in adult patients with TBI. In this exploratory study, we investigated whether DAI grade correlates with functional outcome and improves prognostic accuracy when combined with core clinical variables and computed tomography (CT) biomarkers in pediatric patients with moderate-severe TBI (msTBI). Methods Pediatric patients (≤ 19 years) who were admitted to two regional level one trauma centers with a diagnosis of msTBI (Glasgow Coma Scale [GCS] score < 13) between 2011 and 2019 were identified through retrospective chart review. Patients who underwent brain MRI within 30 days of injury and had documented clinical follow-up after discharge were included. Age, pupil reactivity, and initial motor GCS score were collected as part of the International Mission for Prognosis and Analysis of Clinical Trials in TBI (IMPACT) model. Imaging was reviewed to calculate the Rotterdam score (CT) and DAI grade (MRI) and to evaluate for presence of hypoxic-ischemic injury (MRI). The primary outcome measure was the Pediatric Cerebral Performance Category Scale (PCPCS) score at 6 months after TBI, with favorable outcome defined as PCPCS scores 1–3 and unfavorable outcome defined as PCPCS scores 4–6. The secondary outcome measure was discharge disposition to home versus to an inpatient rehabilitation facility. Result Of 55 patients included in the study, 45 (82%) had severe TBI. The most common mechanism of injury was motor vehicle collision (71%). Initial head CT scans showed acute hemorrhage in 84% of patients. MRI was acquired a median of 5 days after injury, and hemorrhagic DAI lesions were detected in 87% of patients. Each 1-point increase in DAI grade increased the odds of unfavorable functional outcome by 2.4-fold. When controlling for core IMPACT clinical variables, neither the DAI grade nor the Rotterdam score was independently correlated with outcome and neither significantly improved outcome prediction over the IMPACT model alone. Conclusions A higher DAI grade on early MRI is associated with worse 6-month functional outcome and with discharge to inpatient rehabilitation in children with acute msTBI in a univariate analysis but does not independently correlate with outcome when controlling for the GCS score. Addition of the DAI grade to the core IMPACT model does not significantly improve prediction of poor neurological outcome. Further study is needed to elucidate the utility of early MRI in children with msTBI. Supplementary Information The online version contains supplementary material available at 10.1007/s12028-021-01336-8.
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Affiliation(s)
- Anna M Janas
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA. .,Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - FeiFei Qin
- Quantitative Science Unit, Department of Medicine, Stanford University, Stanford, CA, USA
| | - Scott Hamilton
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Bin Jiang
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Nicole Baier
- Department of Pediatrics, Santa Clara Valley Medical Center, San Jose, CA, USA
| | - Max Wintermark
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Zachary Threlkeld
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Sarah Lee
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
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Castaño-Leon AM, Cicuendez M, Navarro-Main B, Paredes I, Munarriz PM, Hilario A, Ramos A, Gomez PA, Lagares A. Traumatic axonal injury: is the prognostic information produced by conventional MRI and DTI complementary or supplementary? J Neurosurg 2021; 136:242-256. [PMID: 34214979 DOI: 10.3171/2020.11.jns203124] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/09/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE A traumatic axonal injury (TAI) diagnosis has traditionally been based on conventional MRI, especially on those sequences with a higher sensitivity to edema and blood degradation products. A more recent technique, diffusion tensor imaging (DTI), can infer the microstructure of white matter (WM) due to the restricted diffusion of water in organized tissues. However, there is little information regarding the correlation of the findings obtained by both methods and their use for outcome prognosis. The main objectives of this study were threefold: 1) study the correlation between DTI metrics and conventional MRI findings; 2) evaluate whether the prognostic information provided by the two techniques is supplementary or complementary; and 3) determine the incremental value of the addition of these variables compared to a traditional prognostic model. METHODS The authors studied 185 patients with moderate to severe traumatic brain injury (TBI) who underwent MRI with DTI study during the subacute stage. The number and volume of lesions in hemispheric subcortical WM, corpus callosum (CC), basal ganglia, thalamus, and brainstem in at least four conventional MRI sequences (T1-weighted, T2-weighted, FLAIR, T2* gradient recalled echo, susceptibility-weighted imaging, and diffusion-weighted imaging) were determined. Fractional anisotropy (FA) was measured in 28 WM bundles using the region of interest method. Nonparametric tests were used to evaluate the colocalization of macroscopic lesions and FA. A multivariate logistic regression analysis was performed to assess the independent prognostic value of each neuroimaging modality after adjustment for relevant clinical covariates, and the internal validation of the model was evaluated in a contemporary cohort of 92 patients. RESULTS Differences in the lesion load between patients according to their severity and outcome were found. Colocalization of macroscopic nonhemorrhagic TAI lesions (not microbleeds) and lower FA was limited to the internal and external capsule, corona radiata, inferior frontooccipital fasciculus, CC, and brainstem. However, a significant association between the FA value and the identification of macroscopic lesions in distant brain regions was also detected. Specifically, lower values of FA of some hemispheric WM bundles and the splenium of the CC were related to a higher number and volume of hyperintensities in the brainstem. The regression analysis revealed that age, motor score, hypoxia, FA of the genu of the CC, characterization of TAI lesions in the CC, and the presence of thalamic/basal ganglia lesions were independent prognostic factors. The performance of the proposed model was higher than that of the IMPACT (International Mission on Prognosis and Analysis of Clinical Trials in TBI) model in the validation cohort. CONCLUSIONS Very limited colocalization of hyperintensities (none for microbleeds) with FA values was discovered. DTI and conventional MRI provide complementary prognostic information, and their combination can improve the performance of traditional prognostic models.
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Affiliation(s)
| | - Marta Cicuendez
- 2Department of Neurosurgery, Hospital Universitario Vall d'Hebron, Universidad de Barcelona, Passeig de la Vall d'Hebron, Barcelona, Spain
| | | | - Igor Paredes
- 1Department of Neurosurgery and Research Institute i+12-CIBERESP, and
| | - Pablo M Munarriz
- 1Department of Neurosurgery and Research Institute i+12-CIBERESP, and
| | - Amaya Hilario
- 3Department of Radiology, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Avda de Cordoba SN, Madrid; and
| | - Ana Ramos
- 3Department of Radiology, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Avda de Cordoba SN, Madrid; and
| | - Pedro A Gomez
- 1Department of Neurosurgery and Research Institute i+12-CIBERESP, and
| | - Alfonso Lagares
- 1Department of Neurosurgery and Research Institute i+12-CIBERESP, and
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Weppner J, Ide W, Tu J, Boomgaardt J, Chang A, Suskauer S. Prognostication and Determinants of Outcome in Adults and Children with Moderate-to-Severe Traumatic Brain Injury. CURRENT PHYSICAL MEDICINE AND REHABILITATION REPORTS 2020. [DOI: 10.1007/s40141-020-00298-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Potapov AA, Danilov GV, Sychev AA, Zakharova NE, Pronin IN, Savin IA, Oshorov AV, Polupan AA, Aleksandrova EV, Strunina YV, Likhterman LB, Okhlopkov VA, Latyshev YA, Chelushkin DM, Baranich AI, Kravchuk AD. [Clinical and MRI predictors of coma duration, intensive care and outcome of traumatic brain injury]. ZHURNAL VOPROSY NEĬROKHIRURGII IMENI N. N. BURDENKO 2020; 84:5-16. [PMID: 32759922 DOI: 10.17116/neiro2020840415] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE This research is aimed to study the clinical and MRI predictors of coma duration, the intensity of critical care, and outcome of traumatic brain injury (TBI). MATERIAL AND METHODS The data from 309 patients with TBI of varying severity were included in the analysis, of whom 257 (86.7%) were treated in the intensive care unit (ICU), including 196 (63.4%) patients admitted in a comatose state lasting longer than 1 day. All patients underwent brain MRI within 21 days after the injury. MRI findings were classified according to MRI grading scale of brain damage level and localization proposed previously. RESULTS The proposed MRI grading significantly correlated with the Glasgow coma (GCS, r=-0.67; p<0.0001) and Glasgow outcome (0.69; p<0.001) scores in the entire group. In a subgroup of comatose patients (GCS<9) it correlated with coma duration (r=0.52; p<0.0001). Spearman correlation analysis showed a significant relationship between the MRI classification and a number of parameters: ICU length of stay (r=0.62; p<0.0001), the duration of artificial ventilation (r=0.47; p<0.0001), the rate of artificial ventilation, sedatives, analgesics, mannitol, hypertonic saline and vasopressors usage (p<0.01). These data confirm the relationship between higher grades of MRI classification (deep brain damage) and the need for the escalation of intensive care main components. CONCLUSION Our results support the hypothesis that the levels and localization of brain damage, estimated by the proposed MRI grading scale, might be predictors of coma duration, intensity and duration of intensive care, and TBI outcomes. A prognosis based on clinical and neuroimaging data comparison can be valuable for planning and efficient use of the hospital beds and ICU resources, for optimizing the patient flow and timing of patient transfer to neurorehabilitation facilities.
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Affiliation(s)
- A A Potapov
- Burdenko Neurosurgical Center, Moscow, Russia
| | - G V Danilov
- Burdenko Neurosurgical Center, Moscow, Russia
| | - A A Sychev
- Burdenko Neurosurgical Center, Moscow, Russia
| | | | - I N Pronin
- Burdenko Neurosurgical Center, Moscow, Russia
| | - I A Savin
- Burdenko Neurosurgical Center, Moscow, Russia
| | - A V Oshorov
- Burdenko Neurosurgical Center, Moscow, Russia
| | - A A Polupan
- Burdenko Neurosurgical Center, Moscow, Russia
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Knutsen AK, Gomez AD, Gangolli M, Wang WT, Chan D, Lu YC, Christoforou E, Prince JL, Bayly PV, Butman JA, Pham DL. In vivo estimates of axonal stretch and 3D brain deformation during mild head impact. BRAIN MULTIPHYSICS 2020; 1. [PMID: 33870238 DOI: 10.1016/j.brain.2020.100015] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The rapid deformation of brain tissue in response to head impact can lead to traumatic brain injury. In vivo measurements of brain deformation during non-injurious head impacts are necessary to understand the underlying mechanisms of traumatic brain injury and compare to computational models of brain biomechanics. Using tagged magnetic resonance imaging (MRI), we obtained measurements of three-dimensional strain tensors that resulted from a mild head impact after neck rotation or neck extension. Measurements of maximum principal strain (MPS) peaked shortly after impact, with maximal values of 0.019-0.053 that correlated strongly with peak angular velocity. Subject-specific patterns of MPS were spatially heterogeneous and consistent across subjects for the same motion, though regions of high deformation differed between motions. The largest MPS values were seen in the cortical gray matter and cerebral white matter for neck rotation and the brainstem and cerebellum for neck extension. Axonal fiber strain (Ef) was estimated by combining the strain tensor with diffusion tensor imaging data. As with MPS, patterns of Ef varied spatially within subjects, were similar across subjects within each motion, and showed group differences between motions. Values were highest and most strongly correlated with peak angular velocity in the corpus callosum for neck rotation and in the brainstem for neck extension. The different patterns of brain deformation between head motions highlight potential areas of greater risk of injury between motions at higher loading conditions. Additionally, these experimental measurements can be directly compared to predictions of generic or subject-specific computational models of traumatic brain injury.
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Affiliation(s)
- Andrew K Knutsen
- Center for Neuroscience and Regenerative Medicine, The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Arnold D Gomez
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Mihika Gangolli
- Center for Neuroscience and Regenerative Medicine, The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Wen-Tung Wang
- Center for Neuroscience and Regenerative Medicine, The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Deva Chan
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - Yuan-Chiao Lu
- Center for the Developing Brain, Children's National Hospital, Washington, D.C., USA
| | | | - Jerry L Prince
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Philip V Bayly
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, Missouri, USA
| | - John A Butman
- Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
| | - Dzung L Pham
- Center for Neuroscience and Regenerative Medicine, The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
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Cicuendez M, Castaño-León A, Ramos A, Hilario A, Gómez PA, Lagares A. The added prognostic value of magnetic resonance imaging in traumatic brain injury: The importance of traumatic axonal injury when performing ordinal logistic regression. J Neuroradiol 2019; 46:299-306. [DOI: 10.1016/j.neurad.2018.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 07/30/2018] [Accepted: 08/15/2018] [Indexed: 12/01/2022]
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Abu Hamdeh S, Marklund N, Lewén A, Howells T, Raininko R, Wikström J, Enblad P. Intracranial pressure elevations in diffuse axonal injury: association with nonhemorrhagic MR lesions in central mesencephalic structures. J Neurosurg 2019; 131:604-611. [PMID: 30215559 DOI: 10.3171/2018.4.jns18185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 04/05/2018] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Increased intracranial pressure (ICP) in patients with severe traumatic brain injury (TBI) with diffuse axonal injury (DAI) is not well defined. This study investigated the occurrence of increased ICP and whether clinical factors and lesion localization on MRI were associated with increased ICP in patients with DAI. METHODS Fifty-two patients with severe TBI (median age 24 years, range 9-61 years), who had undergone ICP monitoring and had DAI on MRI, as determined using T2*-weighted gradient echo, susceptibility-weighted imaging, and diffusion-weighted imaging (DWI) sequences, were enrolled. The proportion of good monitoring time (GMT) with ICP > 20 mm Hg during the first 120 hours postinjury was calculated and associations with clinical and MRI-related factors were evaluated using linear regression. RESULTS All patients had episodes of ICP > 20 mm Hg. The mean proportion of GMT with ICP > 20 mm Hg was 5%, and 27% of the patients (14/52) spent more than 5% of GMT with ICP > 20 mm Hg. The Glasgow Coma Scale motor score at admission (p = 0.04) and lesions on DWI sequences in the substantia nigra and mesencephalic tegmentum (SN-T, p = 0.001) were associated with the proportion of GMT with ICP > 20 mm Hg. In multivariable linear regression, lesions on DWI sequences in SN-T (8% of GMT with ICP > 20 mm Hg, 95% CI 3%-13%, p = 0.004) and young age (-0.2% of GMT with ICP > 20 mm Hg, 95% CI -0.07% to -0.3%, p = 0.002) were associated with increased ICP. CONCLUSIONS Increased ICP occurs in approximately one-third of patients with severe TBI who have DAI. Age and lesions on DWI sequences in the central mesencephalon (i.e., SN-T) are associated with elevated ICP. These findings suggest that MR lesion localization may aid prediction of increased ICP in patients with DAI.
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Affiliation(s)
- Sami Abu Hamdeh
- 1Department of Neuroscience/Neurosurgery, Uppsala University; and
| | - Niklas Marklund
- 1Department of Neuroscience/Neurosurgery, Uppsala University; and
| | - Anders Lewén
- 1Department of Neuroscience/Neurosurgery, Uppsala University; and
| | - Tim Howells
- 1Department of Neuroscience/Neurosurgery, Uppsala University; and
| | - Raili Raininko
- 2Department of Surgical Sciences/Radiology, Uppsala University, Uppsala, Sweden
| | - Johan Wikström
- 2Department of Surgical Sciences/Radiology, Uppsala University, Uppsala, Sweden
| | - Per Enblad
- 1Department of Neuroscience/Neurosurgery, Uppsala University; and
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Sandhu S, Soule E, Fiester P, Natter P, Tavanaiepour D, Rahmathulla G, Rao D. Brainstem Diffuse Axonal Injury and Consciousness. J Clin Imaging Sci 2019; 9:32. [PMID: 31508267 PMCID: PMC6712553 DOI: 10.25259/jcis-11-2019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/04/2019] [Indexed: 12/20/2022] Open
Abstract
Background Severe traumatic brain injuries (TBI), commonly due to motor vehicle accidents may cause death and long-term disability especially when the acceleration-deceleration force on the brain is massive. This may cause shearing of the axonal connections within the cerebral cortex and brainstem in a process referred to as diffuse axonal injury (DAI). Extensive DAI has been postulated to be a poor prognostic indicator for neurological recovery. In our institution, several patients with Grade 3 DAI were observed to recover and achieve neurological outcomes greater than expected given the presence of brainstem injury. Methods MRI studies from 100 patients admitted to a large tertiary trauma center for TBI were retrospectively analyzed by two fellowship-trained neuroradiologists. The size of DAI lesions, location of injury within the brainstem, and the number of discrete DAI lesions were measured and recorded. Glasgow Coma Scale (GCS) on arrival and at discharge was noted, as well as the presence of other neurological injuries. Results Of 20 patients initially noted to have DAI with lesions of the brainstem, eight of them were discharged with Glasgow Coma Scale (GCS) of 14-15. The 12 patients discharged with reduced consciousness (average GC 7.1) demonstrated a greater number of larger lesions, with a predilection for the dorsal pons. Conclusion These results suggest that large, numerous pontine lesions may indicate worse neurological outcomes in patients with these findings.
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Affiliation(s)
- Sukhwinder Sandhu
- Department of Neuroradiology, Mayo Clinic, University of Florida Health, Jacksonville, Florida, USA
| | - Erik Soule
- Departments of Interventional Radiology, University of Florida Health, Jacksonville, Florida, USA
| | - Peter Fiester
- Neuroradiology, University of Florida Health, Jacksonville, Florida, USA
| | - Patrick Natter
- Neuroradiology, University of Florida Health, Jacksonville, Florida, USA
| | | | | | - Dinesh Rao
- Neuroradiology, University of Florida Health, Jacksonville, Florida, USA
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Abstract
BACKGROUND Determine the prognostic impact of magnetic resonance imaging (MRI)-defined diffuse axonal injury (DAI) after traumatic brain injury (TBI) on functional outcomes, quality of life, and 3-year mortality. METHODS This retrospective single center cohort included adult trauma patients (age > 17 years) admitted from 2006 to 2012 with TBI. Inclusion criteria were positive head computed tomography with brain MRI within 2 weeks of admission. Exclusion criteria included penetrating TBI or prior neurologic condition. Separate ordinal logistic models assessed DAI's prognostic value for the following scores: (1) hospital-discharge Functional Independence Measure, (2) long-term Glasgow Outcome Scale-Extended, and (3) long-term Quality of Life after Brain Injury-Overall Scale. Cox proportional hazards modeling assessed DAI's prognostic value for 3-year survival. Covariates included age, sex, race, insurance status, Injury Severity Score, admission Glasgow Coma Scale Score, Marshall Head computed tomography Class, clinical DAI on MRI (Y/N), research-level anatomic DAI Grades I-III (I, cortical; II, corpus callosum; III, brainstem), ventilator days, time to follow commands, and time to long-term follow-up (for logistic models). RESULTS Eligibility criteria was met by 311 patients, who had a median age of 40 years (interquartile range [IQR], 23-57 years), Injury Severity Score of 29 (IQR, 22-38), intensive care unit stay of 6 days (IQR, 2-11 days), and follow-up of 5 years (IQR, 3-6 years). Clinical DAI was present on 47% of MRIs. Among 300 readable MRIs, 56% of MRIs had anatomic DAI (25% Grade I, 18% Grade II, 13% Grade III). On regression, only clinical (not anatomic) DAI was predictive of a lower Functional Independence Measure score (odds ratio, 2.5; 95% confidence interval, 1.28-4.76], p = 0.007). Neither clinical nor anatomic DAI were related to survival, Glasgow Outcome Scale-Extended, or Quality of Life after Brain Injury-Overall Scale scores. CONCLUSION In this longitudinal cohort, clinical evidence of DAI on MRI may only be useful for predicting short-term in-hospital functional outcome. Given no association of DAI and long-term TBI outcomes, providers should be cautious in attributing DAI to future neurologic function, quality of life, and/or survival. LEVEL OF EVIDENCE Epidemiological, level III; Therapeutic, level IV.
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Abstract
Conventional imaging in the acute setting of brain trauma, relevant pathophysiology of injury, and advanced imaging techniques that may provide value in understanding the immediate management and long-term sequela of traumatic brain injury are reviewed. Key imaging findings that can guide clinical management related to such injuries as concussions, hematomas, dissections, dural atrioventricular fistula, and diffuse axonal injury are discussed. The role and accuracy of computed tomography, dual-energy computed tomography, computed tomography angiography, and magnetic resonance angiography in the acute setting are evaluated. In addition, caveats related to imaging the elderly and pediatric population are addressed.
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Affiliation(s)
- Mariza O Clement
- Department of Radiology, Boston Medical Center of Boston University, 820 Harrison Avenue FGH3, Boston, MA 02118, USA.
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18
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"Don't lose hope early": Hemorrhagic diffuse axonal injury on head computed tomography is not associated with poor outcome in moderate to severe traumatic brain injury patients. J Trauma Acute Care Surg 2019; 84:473-482. [PMID: 29140952 DOI: 10.1097/ta.0000000000001733] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Diffuse axonal injury (DAI) on magnetic resonance imaging has been associated with poor functional outcome after moderate-severe traumatic brain injury (msTBI). Yet, DAI assessment with highly sensitive magnetic resonance imaging techniques is unfeasible in the acute trauma setting, and computed tomography (CT) remains the key diagnostic modality despite its lower sensitivity. We sought to determine whether CT-defined hemorrhagic DAI (hDAI) is associated with discharge and favorable 3- and 12-month functional outcome (Glasgow Coma Scale score ≥4) after msTBI. METHODS We analyzed 361 msTBI patients from the single-center longitudinal Outcome Prognostication in Traumatic Brain Injury study collected over 6 years (November 2009 to November 2015) with prospective outcome assessments at 3 months and 12 months. Patients with microhemorrhages on CT were designated "CT-hDAI-positive" and those without as "CT-hDAI-negative." For secondary analyses "CT-hDAI-positive" was stratified into two phenotypes according to presence ("associated") versus absence ("predominant") of concomitant large acute traumatic lesions to determine whether presence versus absence of additional focal mass lesions portends a different prognosis. RESULTS Seventy (19%) patients were CT-hDAI-positive (n = 36 predominant; n = 34 associated hDAI). In univariate analyses, CT-hDAI-positive status was associated with discharge survival (p = 0.004) and favorable outcome at 3 months (p = 0.003) and 12 months (p = 0.005). After multivariable adjustment, CT-hDAI positivity was no longer associated with discharge survival and functional outcome (all ps > 0.05). Stratified by hDAI phenotype, predominant hDAI patients had worse trauma severity, longer intensive care unit stays, and more systemic medical complications. Predominant hDAI, but not associated hDAI, was an independent predictor of discharge survival (adjusted odds ratio, 24.7; 95% confidence interval [CI], 3.2-192.6; p = 0.002) and favorable 12-month outcome (adjusted odds ratio, 4.7; 95% CI, 1.5-15.2; p = 0.01). Sensitivity analyses using Cox regression confirmed this finding for 1-year survival (adjusted hazard ratio, 5.6; 95% CI, 1.3-23; p = 0.048). CONCLUSION The CT-defined hDAI was not an independent predictor of unfavorable short- and long-term outcomes and should not be used for acute prognostication in msTBI patients. Predominant hDAI patients had good clinical outcomes when supported to intensive care unit discharge and beyond. LEVEL OF EVIDENCE Prognostic study, level III.
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Predictive value of early MRI findings on neurocognitive and psychiatric outcomes in patients with severe traumatic brain injury. J Affect Disord 2019; 243:1-7. [PMID: 30218878 DOI: 10.1016/j.jad.2018.09.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 08/26/2018] [Accepted: 09/04/2018] [Indexed: 11/20/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) is the major public health problem worldwide, particularly in the Middle East. Diffuse axonal injury (DAI) is commonly found in TBI. Although DAI can lead to physical and psychosocial disabilities, its prognostic value is still a matter of debate. Magnetic Resonance (MR) is more sensitive for detecting DAI lesions. OBJECTIVE To identify the radiological and clinical factors associated with the functional capacity one year after the traumatic brain injury. METHODS The study included 251 patients with severe head trauma for whom Brain MRI was done within one month after injury. Demographic, clinical, and radiological data were collected during hospitalization. Neurocognitive and psychiatric evaluation were done one year thereafter. RESULTS DAI was more frequent in our patients. Psychiatric disorders, cognitive impairment, and poor functional outcome were more common in patients with DAI especially those with cerebral hemisphere and brain stem lesion, and mixed lesions. Duration of post traumatic amnesia (DPTA), lost consciousness and hospital stay (DHS) as well as the volume of diffuse axonal injury (DAI) were associated with poor neurocognitive outcome. DPTA, and DAIV may be considered independent factors that could predict the neurocognitive outcome. CONCLUSION MRI following traumatic brain injury yields important prognostic information, with several lesion patterns significantly associated with poor long-term neurocognitive and psychiatric outcomes.
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Zakharova NE, Danilov GV, Potapov AA, Pronin IN, Alexandrova EV, Kravchuk AD, Oshorov AV, Sychev AA, Polupan AA, Savin IA. [The prognostic value of mri-classification of traumatic brain lesions level and localization depending on neuroimaging timing]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2019; 83:46-55. [PMID: 31577269 DOI: 10.17116/neiro20198304146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE The aim of this study was to estimate the prognostic value of magnetic resonance imaging (MRI) classification of traumatic brain lesion localization and levels in patients with a brain injury of various severity in a few days to three weeks after the injury. MATERIAL AND METHODS The cohort of 278 patients with traumatic brain injury (TBI) of various severity aged 8-74 y.o. (average -31.4±13.8, median - 29 (21.3; 37.0) was included in the analysis. The severity of TBI at admission varied from 3 to 15 Glasgow coma scores (GCS) (average - 8±4, median - 7 (5; 12). The main indications and conditions for MRI were: inconsistency between computed tomography (CT) data and neurological status, the necessity to clarify the location and type of brain damage, the absence of metal implants, the stabilization of the patient's vital functions, etc. MRI was performed during the first three weeks after the injury using T1, T2, T2-FLAIR, DWI, T2*GRE, SWAN sequences. The damage to the brain was classified according to 8 grades depending on the lesion levels (cortical-subcortical level, corpus callosum, basal ganglia and/or thalamus, and/or internal, and/or external capsules, uni- or bilateral brain stem injury at a different level). Outcomes were assessed by the Glasgow outcome scale (GOS) 6 months after injury. RESULTS The significant correlations were found for the entire cohort between MRI grading and TBI severity (by GCS) and outcome (by GOS) of the injury (R=-0.66; p<0.0001; R=-0.69; p<0.0001, respectively). A high accuracy (77%), sensitivity (77%) and specificity (76%) of the proposed MRI classification in predicting injury outcomes (AUC=0.85) were confirmed using the logistic regression and ROC analysis. The assessment of MRI-classification prognostic value in subgroups of patients examined during the first, second, and third weeks after injury showed significant correlations between the GCS and the GOS as well as between MRI-grading and GCS, and GOS in all three subgroups. In the subgroup of patients examined during the first 14 days after the injury, the correlation coefficients were higher compared with those obtained in a subgroup examined 15-21 days after the injury. The highest correlations between MRI grading, TBI severity, and the outcome were found in the subgroup of patients who underwent MRI in the first three days after the injury (n=58). CONCLUSION The proposed MRI classification of traumatic brain lesion levels and localization based on the use of different MR sequences reliably correlated with the clinical estimate of TBI severity by GCS and the outcomes by GOS in patients examined during the first three weeks after injury. The strongest correlation was observed for patients examined during the first three days after the injury.
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Affiliation(s)
| | - G V Danilov
- Burdenko Neurosurgery Center, Moscow, Russia
| | - A A Potapov
- Burdenko Neurosurgery Center, Moscow, Russia
| | - I N Pronin
- Burdenko Neurosurgery Center, Moscow, Russia
| | | | | | - A V Oshorov
- Burdenko Neurosurgery Center, Moscow, Russia
| | - A A Sychev
- Burdenko Neurosurgery Center, Moscow, Russia
| | - A A Polupan
- Burdenko Neurosurgery Center, Moscow, Russia
| | - I A Savin
- Burdenko Neurosurgery Center, Moscow, Russia
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Mata-Mbemba D, Mugikura S, Nakagawa A, Murata T, Ishii K, Kushimoto S, Tominaga T, Takahashi S, Takase K. Traumatic midline subarachnoid hemorrhage on initial computed tomography as a marker of severe diffuse axonal injury. J Neurosurg 2018; 129:1317-1324. [PMID: 29303451 DOI: 10.3171/2017.6.jns17466] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/19/2017] [Indexed: 11/06/2022]
Abstract
OBJECTIVEThe objective of this study was to test the hypothesis that midline (interhemispheric or perimesencephalic) traumatic subarachnoid hemorrhage (tSAH) on initial CT may implicate the same shearing mechanism that underlies severe diffuse axonal injury (DAI).METHODSThe authors enrolled 270 consecutive patients (mean age [± SD] 43 ± 23.3 years) with a history of head trauma who had undergone initial CT within 24 hours and brain MRI within 30 days. Six initial CT findings, including intraventricular hemorrhage (IVH) and tSAH, were used as candidate predictors of DAI. The presence of tSAH was determined at the cerebral convexities, sylvian fissures, sylvian vallecula, cerebellar folia, interhemispheric fissure, and perimesencephalic cisterns. Following MRI, patients were divided into negative and positive DAI groups, and were assigned to a DAI stage: 1) stage 0, negative DAI; 2) stage 1, DAI in lobar white matter or cerebellum; 3) stage 2, DAI involving the corpus callosum; and 4) stage 3, DAI involving the brainstem. Glasgow Outcome Scale-Extended (GOSE) scores were obtained in 232 patients.RESULTSOf 270 patients, 77 (28.5%) had DAI; tSAH and IVH were independently associated with DAI (p < 0.05). Of tSAH locations, midline tSAH was independently associated with both overall DAI and DAI stage 2 or 3 (severe DAI; p < 0.05). The midline tSAH on initial CT had sensitivity of 60.8%, specificity of 81.7%, and positive and negative predictive values of 43.7% and 89.9%, respectively, for severe DAI. When adjusted for admission Glasgow Coma Score, the midline tSAH independently predicted poor GOSE score at both hospital discharge and after 6 months.CONCLUSIONSMidline tSAH could implicate the same shearing mechanism that underlies severe DAI, for which midline tSAH on initial CT is a probable surrogate.
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Affiliation(s)
| | | | | | | | - Kiyoshi Ishii
- 3Department of Radiology, Sendai Kousei Hospital, Sendai, Japan
| | - Shigeki Kushimoto
- 4Division of Emergency and Critical Care Medicine, Tohoku University Graduate School of Medicine; and
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Máté A, Kis D, Czigner A, Fischer T, Halász L, Barzó P. Connectivity-based segmentation of the brainstem by probabilistic tractography. Brain Res 2018; 1690:74-88. [PMID: 29555236 DOI: 10.1016/j.brainres.2018.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 02/16/2018] [Accepted: 03/08/2018] [Indexed: 11/26/2022]
Abstract
Diffusion magnetic resonance imaging is a non-invasive tool increasingly used for the investigation of brain connectivity in vivo. In this paper we propose a method that allows segmentation of the brainstem to four subregions (frontopontine, motor, sensory and reticular) based on connections to supratentorial structures, thereby eliminating the need for using anatomical landmarks within the brainstem for the identification of these subregions. The feasibility of connectivity-based brainstem segmentation was investigated in a group of healthy subjects (n = 20). Multifiber probabilistic tractography was performed using the FMRIB Software Library, and connections between a pontomesencephalic seed mask and four supratentorial target regions (anterior and posterior limbs of the internal capsule, sensory and medial thalamus) were used to determine connectivity maps of the brainstem. Results were compared with a neuroanatomy atlas and histological sections, confirming good anatomic correspondence. The four subregions detected by the connectivity-based segmentation showed good intersubject reproducibility. The presented method may be a potential tool to investigate brainstem connectivity in diseases that distort normal anatomy, and quantitative analyses of the diffusion-related parameters may provide additional information on the involvement of brainstem pathways in certain disease states (e.g., traumatic brain injury, demyelinating disorders, brainstem tumors). The potential clinical applicability of the method is demonstrated in two cases of severe traumatic brain injury.
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Affiliation(s)
- Adrienn Máté
- Department of Neurosurgery, Albert Szent-Györgyi Clinical Center, University of Szeged, 6 Semmelweis Street, H-6725 Szeged, Hungary.
| | - Dávid Kis
- Department of Neurosurgery, Albert Szent-Györgyi Clinical Center, University of Szeged, 6 Semmelweis Street, H-6725 Szeged, Hungary
| | - Andrea Czigner
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Szeged, 40 Kossuth L. Boulevard, H-6724 Szeged, Hungary
| | - Tamás Fischer
- Department of Neurosurgery, Albert Szent-Györgyi Clinical Center, University of Szeged, 6 Semmelweis Street, H-6725 Szeged, Hungary
| | - László Halász
- National Institute of Clinical Neurosciences, 44-46 Laky Adolf Street, H-1145 Budapest, Hungary
| | - Pál Barzó
- Department of Neurosurgery, Albert Szent-Györgyi Clinical Center, University of Szeged, 6 Semmelweis Street, H-6725 Szeged, Hungary
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Diffuse axonal injury (DAI) in moderate to severe head injured patients: Pure DAI vs. non-pure DAI. Clin Neurol Neurosurg 2018; 171:116-123. [PMID: 29909182 DOI: 10.1016/j.clineuro.2018.06.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/01/2018] [Accepted: 06/09/2018] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Diffuse axonal injury (DAI) is known to be associated with poor outcome. DAI often associates with other intracranial injuries but their distinct features have not been established. In this retrospective cohort study, we compared clinical outcomes between pure and non-pure DAI patients. PATIENTS AND METHODS Total of 1047 traumatic brain injury (TBI) patients visited our institute between 2011 and 2017. Age ranged between 15-85 years old and Glasgow coma scale (GCS) score less than 13 were included. DAI was diagnosed in 45 patients using CT and MRI and their clinical features and outcomes were compared depending on their associated cranial injury; 20 patients without evidence of associated injury (Pure DAI group) and other 25 patients with associated injury (Non-pure DAI group). DAI stage was adopted using Gentry, L.R. CLASSIFICATION Glasgow outcome scale (GOS) was measured at least 6 months after trauma to evaluate their functional outcome. RESULTS The mean age and follow-up period were 45.36 years and 15.09 months, respectively. There were no significant differences between pure and non-pure DAI groups regarding demographic data and clinical findings on their admission. Logistic regression model was used to examine the association between GOS and clinical factors. In this analysis, pure DAI was no significantly different to non-pure DAI (p = 0.607). However, DAI Stage, transfusion, and hypotension on admission were strongly related to poor outcome. Stage III showed sevenfold higher risk when compared to Stage I (p = 0.010). The risk was also high when Stage III was compare to Stage I and II (p = 0.002). Interestingly, no significant difference was observed between Stage I and II (p = 0.847). CONCLUSIONS Unfavorable outcome was observed in 14 patients (31.11%) which was lower than we expected. Interestingly, non-pure DAI was no worse than pure DAI on their functional outcome. However, DAI Stage III was independently associated with poor outcome when compared to Stage I or I and II. Finally, we concluded that Stage II is clinically more related to Stage I, rather than Stage III.
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Avanali R, Bhadran B, Panchal S, Kumar P. K, V. A, Gulhane K, G. H. Antero posterior elongation of midbrain in traumatic brain injury- significant sign yet a mistaken entity. Br J Neurosurg 2018; 32:129-135. [DOI: 10.1080/02688697.2018.1432748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Raghunath Avanali
- Department of Neurosurgery, Government Medical College, Alappuzha, Kerala, India
| | - Biju Bhadran
- Department of Neurosurgery, Government Medical College, Alappuzha, Kerala, India
| | - Sunil Panchal
- Department of Neurosurgery, Government Medical College, Alappuzha, Kerala, India
| | - Krishna Kumar P.
- Department of Neurosurgery, Government Medical College, Alappuzha, Kerala, India
| | - Abhishek V.
- Department of Neurosurgery, Government Medical College, Alappuzha, Kerala, India
| | - Kshitij Gulhane
- Department of Neurosurgery, Government Medical College, Alappuzha, Kerala, India
| | - Harison G.
- Department of Neurosurgery, Government Medical College, Alappuzha, Kerala, India
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Bai XF, Gao YK. Recombinant human erythropoietin for treating severe traumatic brain injury. Medicine (Baltimore) 2018; 97:e9532. [PMID: 29505528 PMCID: PMC5943123 DOI: 10.1097/md.0000000000009532] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 12/05/2017] [Accepted: 12/11/2017] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND This study aimed to explore the efficacy and safety of recombinant human erythropoietin (RHE) for the treatment of severe traumatic brain injury (STBI). METHODS One hundred and twenty eligible patients with STBI were randomly divided into an intervention group or a control group equally. Patients in the intervention group received RHE. The participants in the control group received 0.9% saline. The outcome measurements included the Glasgow Outcome Scale (GOS) scores, mortality, and any adverse events. RESULTS At the end of 10-week follow-up after treatment, RHE neither showed greater efficacy in GOS scores (1-2, P = .43; 3-4, P = .25; 5-6, P = .58; 7-8, P = .23), nor the lower mortality in the intervention group than those in the control group (P = .47). In addition, both groups had similar safety profile. CONCLUSION This study found that RHE did not improve the neurological outcomes in patients with STBI.
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Chai O, Peery D, Bdolah-Abram T, Moscovich E, Kelmer E, Klainbart S, Milgram J, Shamir MH. Computed tomographic findings in dogs with head trauma and development of a novel prognostic computed tomography–based scoring system. Am J Vet Res 2017; 78:1085-1090. [DOI: 10.2460/ajvr.78.9.1085] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Cicuendez M, Castaño-León A, Ramos A, Hilario A, Gómez PA, Lagares A. [Magnetic resonance in traumatic brain injury: A comparative study of the different conventional magnetic resonance imaging sequences and their diagnostic value in diffuse axonal injury]. Neurocirugia (Astur) 2017; 28:266-275. [PMID: 28728755 DOI: 10.1016/j.neucir.2017.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/29/2017] [Accepted: 06/05/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To compare the identification capability of traumatic axonal injury (TAI) by different sequences on conventional magnetic resonance (MR) studies in traumatic brain injury (TBI) patients. MATERIAL AND METHODS We retropectevely analyzed 264 TBI patients to whom a MR had been performed in the first 60 days after trauma. All clinical variables related to prognosis were registered, as well as the data from the initial computed tomography. The MR imaging protocol consisted of a 3-plane localizer sequence T1-weighted and T2-weighted fast spin-echo, FLAIR and gradient-echo images (GRET2*). TAI lesions were classified according to Gentry and Firsching classifications. We calculated weighted kappa coefficients and the area under the ROC curve for each MR sequence. A multivariable analyses was performed to correlate MR findings in each sequence with the final outcome of the patients. RESULTS TAI lesions were adequately visualized on T2, FLAIR and GRET2* sequences in more than 80% of the studies. Subcortical TAI lesions were well on FLAIR and GRET2* sequences visualized hemorrhagic TAI lesions. We saw that these MR sequences had a high inter-rater agreement for TAI diagnosis (0.8). T2 sequence presented the highest value on ROC curve in Gentry (0.68, 95%CI: 0.61-0.76, p<0.001, Nagerlkerke-R2 0.26) and Firsching classifications (0.64, 95%CI 0.57-0.72, p<0.001, Nagerlkerke-R2 0.19), followed by FLAIR and GRET2* sequences. Both classifications determined by each of these sequences were associated with poor outcome after performing a multivariable analyses adjusted for prognostic factors (p<0.02). CONCLUSIONS We recommend to perform conventional MR study in subacute phase including T2, FLAIR and GRET2* sequences for visualize TAI lesions. These MR findings added prognostic information in TBI patients.
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Affiliation(s)
- Marta Cicuendez
- Departamento de Neurocirugía, Hospital Universitario Vall d'Hebron, Barcelona, España.
| | - Ana Castaño-León
- Departamento de Neurocirugía, Instituto de Investigación i+12, Hospital Universitario 12 de Octubre. Universidad Complutense de Madrid, Madrid, España
| | - Ana Ramos
- Departamento de Neurorradiología, Hospital Universitario 12 de Octubre. Universidad Complutense de Madrid, Madrid, Spain
| | - Amaya Hilario
- Departamento de Neurorradiología, Hospital Universitario 12 de Octubre. Universidad Complutense de Madrid, Madrid, Spain
| | - Pedro A Gómez
- Departamento de Neurocirugía, Instituto de Investigación i+12, Hospital Universitario 12 de Octubre. Universidad Complutense de Madrid, Madrid, España
| | - Alfonso Lagares
- Departamento de Neurocirugía, Instituto de Investigación i+12, Hospital Universitario 12 de Octubre. Universidad Complutense de Madrid, Madrid, España
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Davceva N, Sivevski A, Basheska N. Traumatic axonal injury, a clinical-pathological correlation. J Forensic Leg Med 2017; 48:35-40. [PMID: 28437717 DOI: 10.1016/j.jflm.2017.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 12/09/2016] [Accepted: 04/12/2017] [Indexed: 10/19/2022]
Abstract
Traumatic axonal injury (TAI) is a distinct clinicopathological entity that can cause serious impairment of the brain function and can sometimes be found as a concrete cause of death. It has been discussed from the perspective of its biomechanical importance, and also from the standpoint of certain criteria for the pathological diagnosis of TAI. However, since the time when DAI (diffuse axonal injury) was initially described, there have been few, if any, discussions about the clinical-pathological correlation in TAI. This paper is an attempt to address this issue. For the purpose of certain pathological diagnoses of TAI, 63 cases with closed head injuries have been subjected to the complete forensic-neuropathological examination, involving immunohistochemistry with antibody against β-APP. In the diagnosis of TAI strict criteria have been followed. Then, retrograde analysis of the clinical parameters has been performed in order to determine some clinical-pathological correlation. The following two most reliable parameters of the impairment of the brain function have been analyzed: the impairment of the consciousness and the time of survival. Comparing the two groups, the one with TAI and the other without TAI, and using appropriate statistical evaluation, our results show that TAI is not a significant contributing factor to the lethal outcome in the early post injury period (24 h), but it is undoubtedly a contributing factor for the severe impairment of the brain function indicated through the status of the consciousness.
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Affiliation(s)
- N Davceva
- Institute of Forensic Medicine, Criminology and Medical Deontology, "Mother Theresa" No 19, 1000 Skopje, Republic of Macedonia.
| | - A Sivevski
- Professor of Anesthesiology, University Clinic for Gynecology and Obstetric, Medical Faculty, Ss. Cyril and Methodius University in Skopje, "Mother Theresa" No 17, 1000 Skopje, Republic of Macedonia
| | - Neli Basheska
- Department of Histopathology and Clinical Cytology, University Clinic of Radiotherapy and Oncology, Ss Cyril and Methodius University Faculty of Medicine, Skopje, Republic of Macedonia
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Cicuendez M, Castaño-León A, Ramos A, Hilario A, Gómez PA, Lagares A. Prognostic value of corpus callosum injuries in severe head trauma. Acta Neurochir (Wien) 2017; 159:25-32. [PMID: 27796652 DOI: 10.1007/s00701-016-3000-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 10/13/2016] [Indexed: 11/24/2022]
Abstract
BACKGROUND This study was performed to investigate the relationship between corpus callosum (CC) injury and prognosis in traumatic axonal injury (TAI). METHOD We retrospectively reviewed 264 patients with severe head trauma who underwent a conventional MR imaging in the first 60 days after injury. They were selected from a prospectively collected database of 1048 patients with severe head trauma admitted in our hospital. TAI lesions were defined as areas of increased signal intensity on T2 and FLAIR or areas of decreased signal on gradient-echo T2. We attempted to determine whether any MR imaging findings of TAI lesions at CC could be related to prognosis. Neurological impairment was assessed at 1 year after injury by means of GOS-E (good outcome being GOS-E 4/5 and bad outcome being GOS-E <4). We adjusted the multivariable analysis for the prognostic factors according to the IMPACT studies: the Core model (age, motor score at admission, and pupillary reactivity) and the Extended model (including CT information and second insults). RESULTS We found 97 patients (37 %) with TAI at CC and 167 patients (63 %) without CC lesions at MR. A total of 62 % of the patients with CC lesions had poor outcome, whereas 38 % showed good prognosis. The presence of TAI lesions at the corpus callosum was associated with poor outcome 1 year after brain trauma (p < 0.001, OR 3.8, 95 % CI: 2.04-7.06). The volume of CC lesions measured on T2 and FLAIR sequences was negatively correlated with the GOS-E after adjustment for independent prognostic factors (p = 0.01, OR 2.23, 95 % CI:1.17-4.26). Also the presence of lesions at splenium was statistically related to worse prognosis (p = 0.002, OR 8.1, 95 % CI: 2.2-29.82). We did not find statistical significance in outcome between hemorrhagic and non-hemorrhagic CC lesions. CONCLUSIONS The presence of CC is associated with a poor outcome. The total volume of the CC lesion is an independent prognostic factor for poor outcome in severe head trauma.
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Affiliation(s)
- Marta Cicuendez
- Department of Neurosurgery, Hospital Universitario Vall d'Hebron, Barcelona, Spain.
| | - Ana Castaño-León
- Department of Neurosurgery, Instituto de Investigación i+12, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
| | - Ana Ramos
- Department of Neuroradiology, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
| | - Amaya Hilario
- Department of Neuroradiology, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
| | - Pedro A Gómez
- Department of Neurosurgery, Instituto de Investigación i+12, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
| | - Alfonso Lagares
- Department of Neurosurgery, Instituto de Investigación i+12, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
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Li ZM, Xiao YL, Zhu JX, Geng FY, Guo CJ, Chong ZL, Wang LX. Recombinant human erythropoietin improves functional recovery in patients with severe traumatic brain injury: A randomized, double blind and controlled clinical trial. Clin Neurol Neurosurg 2016; 150:80-83. [DOI: 10.1016/j.clineuro.2016.09.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 07/26/2016] [Accepted: 09/02/2016] [Indexed: 12/25/2022]
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Abstract
Traumatic brain injury (TBI) is a major cause of morbidity and mortality worldwide. Imaging plays an important role in the evaluation, diagnosis, and triage of patients with TBI. Recent studies suggest that it also helps predict patient outcomes. TBI consists of multiple pathoanatomic entities. This article reviews the current state of TBI imaging including its indications, benefits and limitations of the modalities, imaging protocols, and imaging findings for each of these pathoanatomic entities. Also briefly surveyed are advanced imaging techniques, which include several promising areas of TBI research.
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Affiliation(s)
- Christopher A Mutch
- Department of Radiology, University of California, San Francisco, 505 Parnassus Avenue, M391, San Francisco, CA 94143, USA
| | - Jason F Talbott
- Department of Radiology, San Francisco General Hospital, University of California, San Francisco, 1001 Potrero Avenue, San Francisco, CA 94110, USA.
| | - Alisa Gean
- Department of Radiology, San Francisco General Hospital, University of California, San Francisco, 1001 Potrero Avenue, San Francisco, CA 94110, USA
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Abu Hamdeh S, Marklund N, Lannsjö M, Howells T, Raininko R, Wikström J, Enblad P. Extended Anatomical Grading in Diffuse Axonal Injury Using MRI: Hemorrhagic Lesions in the Substantia Nigra and Mesencephalic Tegmentum Indicate Poor Long-Term Outcome. J Neurotrauma 2016; 34:341-352. [PMID: 27356857 PMCID: PMC5220564 DOI: 10.1089/neu.2016.4426] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Clinical outcome after traumatic diffuse axonal injury (DAI) is difficult to predict. In this study, three magnetic resonance imaging (MRI) sequences were used to quantify the anatomical distribution of lesions, to grade DAI according to the Adams grading system, and to evaluate the value of lesion localization in combination with clinical prognostic factors to improve outcome prediction. Thirty patients (mean 31.2 years ±14.3 standard deviation) with severe DAI (Glasgow Motor Score [GMS] <6) examined with MRI within 1 week post-injury were included. Diffusion-weighted (DW), T2*-weighted gradient echo and susceptibility-weighted (SWI) sequences were used. Extended Glasgow outcome score was assessed after 6 months. Number of DW lesions in the thalamus, basal ganglia, and internal capsule and number of SWI lesions in the mesencephalon correlated significantly with outcome in univariate analysis. Age, GMS at admission, GMS at discharge, and low proportion of good monitoring time with cerebral perfusion pressure <60 mm Hg correlated significantly with outcome in univariate analysis. Multivariate analysis revealed an independent relation with poor outcome for age (p = 0.005) and lesions in the mesencephalic region corresponding to substantia nigra and tegmentum on SWI (p = 0.008). We conclude that higher age and lesions in substantia nigra and mesencephalic tegmentum indicate poor long-term outcome in DAI. We propose an extended MRI classification system based on four stages (stage I—hemispheric lesions, stage II—corpus callosum lesions, stage III—brainstem lesions, and stage IV—substantia nigra or mesencephalic tegmentum lesions); all are subdivided by age (≥/<30 years).
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Affiliation(s)
- Sami Abu Hamdeh
- 1 Department of Neuroscience, Neurosurgery, Uppsala University , Uppsala, Sweden
| | - Niklas Marklund
- 1 Department of Neuroscience, Neurosurgery, Uppsala University , Uppsala, Sweden
| | - Marianne Lannsjö
- 2 Department of Neuroscience, Rehabilitation Medicine, Uppsala University , Uppsala, Sweden .,3 Center of Research and Development, Uppsala University/County Council of Gävleborg , Gävle Hospital, Gävle, Sweden
| | - Tim Howells
- 1 Department of Neuroscience, Neurosurgery, Uppsala University , Uppsala, Sweden
| | - Raili Raininko
- 4 Department of Radiology, Uppsala University , Uppsala, Sweden
| | - Johan Wikström
- 4 Department of Radiology, Uppsala University , Uppsala, Sweden
| | - Per Enblad
- 1 Department of Neuroscience, Neurosurgery, Uppsala University , Uppsala, Sweden
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Affiliation(s)
- Kathleen R Fink
- Harborview Medical Center, University of Washington, Seattle, WA.
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34
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Drijkoningen D, Leunissen I, Caeyenberghs K, Hoogkamer W, Sunaert S, Duysens J, Swinnen SP. Regional volumes in brain stem and cerebellum are associated with postural impairments in young brain-injured patients. Hum Brain Mapp 2015; 36:4897-909. [PMID: 26441014 DOI: 10.1002/hbm.22958] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/19/2015] [Accepted: 08/20/2015] [Indexed: 01/08/2023] Open
Abstract
Many patients with traumatic brain injury (TBI) suffer from postural control impairments that can profoundly affect daily life. The cerebellum and brain stem are crucial for the neural control of posture and have been shown to be vulnerable to primary and secondary structural consequences of TBI. The aim of this study was to investigate whether morphometric differences in the brain stem and cerebellum can account for impairments in static and dynamic postural control in TBI. TBI patients (n = 18) and healthy controls (n = 30) completed three challenging postural control tasks on the EquiTest® system (Neurocom). Infratentorial grey matter (GM) and white matter (WM) volumes were analyzed with cerebellum-optimized voxel-based morphometry using the spatially unbiased infratentorial toolbox. Volume loss in TBI patients was revealed in global cerebellar GM, global infratentorial WM, middle cerebellar peduncles, pons and midbrain. In the TBI group and across both groups, lower postural control performance was associated with reduced GM volume in the vermal/paravermal regions of lobules I-IV, V and VI. Moreover, across all participants, worse postural control performance was associated with lower WM volume in the pons, medulla, midbrain, superior and middle cerebellar peduncles and cerebellum. This is the first study in TBI patients to demonstrate an association between postural impairments and reduced volume in specific infratentorial brain areas. Volumetric measures of the brain stem and cerebellum may be valuable prognostic markers of the chronic neural pathology, which complicates rehabilitation of postural control in TBI.
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Affiliation(s)
- David Drijkoningen
- KU Leuven, Movement Control and Neuroplasticity Research Group, Group Biomedical Sciences, Leuven, Belgium
| | - Inge Leunissen
- KU Leuven, Movement Control and Neuroplasticity Research Group, Group Biomedical Sciences, Leuven, Belgium
| | - Karen Caeyenberghs
- School of Psychology, Faculty of Health Sciences, Australian Catholic University, Melbourne, Victoria, Australia
| | - Wouter Hoogkamer
- KU Leuven, Movement Control and Neuroplasticity Research Group, Group Biomedical Sciences, Leuven, Belgium
| | - Stefan Sunaert
- KU Leuven, Department of Radiology, University Hospital, Leuven, Belgium
| | - Jacques Duysens
- KU Leuven, Movement Control and Neuroplasticity Research Group, Group Biomedical Sciences, Leuven, Belgium
| | - Stephan P Swinnen
- KU Leuven, Movement Control and Neuroplasticity Research Group, Group Biomedical Sciences, Leuven, Belgium.,KU Leuven, Leuven Research Institute for Neuroscience & Disease (LIND), Belgium
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Yuan L, Wei X, Xu C, Jin Y, Wang G, Li Y, Tian H, Chen S. Use of multisequence 3.0-T MRI to detect severe traumatic brain injury and predict the outcome. Br J Radiol 2015; 88:20150129. [PMID: 26067919 DOI: 10.1259/bjr.20150129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The aim of this study was to evaluate multisequence 3.0-T MRI in the detection of severe traumatic brain injury (sTBI) and in predicting the outcome. METHODS 32 patients with sTBI were prospectively enrolled, and multisequence 3.0-T MRI was performed 4-8 weeks post injury. Quantitative data were recorded on each sequence. The ability to display the parenchymal lesions was compared with that of 64-slice spiral CT. The clinical and radiological results were correlated with the Glasgow Outcome Scale Extended scores 6 months after injury. RESULTS 3.0-T MRI could display more lesions than CT, especially when the lesion was deeply located. The lesion volumes and diffuse axonal injury (DAI) scores were different between good and poor outcome groups on fluid attenuated inversion recovery (p < 0.05). The apparent diffusion coefficient (ADC) values of the splenium of the corpus callosum and brain stem were also different (p < 0.05). Patients with unfavourable outcome showed a significantly higher volume of haemorrhage on susceptibility-weighted imaging than those with favourable outcomes and had haemorrhages generally located more deeply. Logistic regression analysis revealed that the location of haemorrhage and the ADC values of the splenium of the corpus callosum were independent risk factors for poor outcome, with an overall predictive accuracy of 91.4%. CONCLUSION The joint use of conventional and advanced sequences of 3.0-T MRI can comprehensively detect the pathological changes occurring after sTBI. Haemorrhagic and non-haemorrhagic DAIs in deep structures strongly suggest poor outcome. ADVANCES IN KNOWLEDGE This article improves the understanding of advanced MRI sequences in the detection of patients with sTBI and prediction of prognosis.
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Affiliation(s)
- L Yuan
- 1 Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - X Wei
- 2 Department of Diagnostic Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - C Xu
- 1 Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Jin
- 1 Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - G Wang
- 1 Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Li
- 2 Department of Diagnostic Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - H Tian
- 1 Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - S Chen
- 1 Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Abstract
PURPOSE OF REVIEW In recent years, we have begun to better understand how to monitor the injured brain, look for less common complications and importantly, reduce unnecessary and potentially harmful intervention. However, the lack of consensus regarding triggers for intervention, best neuromonitoring techniques and standardization of therapeutic approach is in need of more careful study. This review covers the most recent evidence within this exciting and dynamic field. RECENT FINDINGS The role of intracranial pressure monitoring has been challenged; however, it still remains a cornerstone in the management of the severely brain-injured patient and should be used to compliment other techniques, such as clinical examination and serial imaging.The use of multimodal monitoring continues to be refined and it may be possible to use them to guide novel brain resuscitation techniques, such as the use of exogenous lactate supplementation in the future. SUMMARY Neurocritical care management of traumatic brain injury continues to evolve. However, it is important not to use a 'one-treatment-fits-all' approach, and perhaps look to use targeted therapies to individualize treatment.
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Immediate, irreversible, posttraumatic coma: a review indicating that bilateral brainstem injury rather than widespread hemispheric damage is essential for its production. J Neuropathol Exp Neurol 2015; 74:198-202. [PMID: 25668566 DOI: 10.1097/nen.0000000000000170] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Traumatic brain injury may result in immediate long-lasting coma. Much attention has been given to predicting this outcome from the initial examination because these predictions can guide future treatment and interactions with the patient's family. Reports of diffuse axonal injury in these cases have ascribed the coma to widespread damage in the deep white matter that disconnects the hemispheres from the ascending arousal system (AAS). However, brainstem lesions are also present in such cases, and the AAS may be interrupted at the brainstem level. This review examines autopsy and imaging literature that assesses the presence, extent, and predictive value of lesions in both sites. The evidence suggests that diffuse injury to the deep white matter is not the usual cause of immediate long-lasting posttraumatic coma. Instead, brainstem lesions in the rostral pons or midbrain are almost always the cause but only if the lesions are bilateral. Moreover, recovery is possible if critical brainstem inputs to the AAS are spared. The precise localization of the latter is subject to ongoing investigation with advanced imaging techniques using magnets of very high magnetic gradients. Limited availability of this equipment plus the need to verify the findings continue to require meticulous autopsy examination.
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Potapov AA, Krylov VV, Gavrilov AG, Kravchuk AD, Likhterman LB, Petrikov SS, Talypov AE, Zakharova NE, Oshorov AV, Solodov AA. Guidelines for the management of severe head injury. Part 1. Neurotrauma system and neuroimaging. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2015; 79:100-106. [PMID: 26977800 DOI: 10.17116/neiro2015796100-106] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Traumatic brain injury is one of the main causes of mortality and disability in young and middle-aged individuals. The patients with severe traumatic brain injury who are in coma are the most difficult to deal with. Appropriate diagnosis of the primary brain injuries and early prevention and treatment of secondary damage mechanisms largely determine the possibility of reducing mortality and severe disabling consequences. The authors compiled these guidelines based on their experience in development of international and Russian recommendations on the diagnosis and treatment of mild traumatic brain injury, penetrating gunshot injury of the skull and brain, severe traumatic brain injury, and severe consequences of brain injuries, including a vegetative state. In addition, we used the materials of international and Russian recommendations on the diagnosis, intensive care, and surgical treatment of severe traumatic brain injury published in recent years. The proposed recommendations are related to organization of medical care and diagnosis of severe traumatic brain injury in adults and are primarily addressed to neurosurgeons, neurologists, neuroradiologists, anesthesiologists, and emergency room doctors, who are routinely involved in management of these patients.
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Affiliation(s)
- A A Potapov
- Burdenko Neurosurgical Institute, Moscow, Russia
| | - V V Krylov
- Sklifosovsky Research Institute for Emergency Medicine, Moscow
| | - A G Gavrilov
- Burdenko Neurosurgical Institute, Moscow, Russia
| | - A D Kravchuk
- Burdenko Neurosurgical Institute, Moscow, Russia
| | | | - S S Petrikov
- Sklifosovsky Research Institute for Emergency Medicine, Moscow
| | - A E Talypov
- Sklifosovsky Research Institute for Emergency Medicine, Moscow
| | | | - A V Oshorov
- Burdenko Neurosurgical Institute, Moscow, Russia
| | - A A Solodov
- Sklifosovsky Research Institute for Emergency Medicine, Moscow
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Mata-Mbemba D, Mugikura S, Nakagawa A, Murata T, Kato Y, Tatewaki Y, Li L, Takase K, Ishii K, Kushimoto S, Tominaga T, Takahashi S. Intraventricular hemorrhage on initial computed tomography as marker of diffuse axonal injury after traumatic brain injury. J Neurotrauma 2014; 32:359-65. [PMID: 25026366 DOI: 10.1089/neu.2014.3453] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Intraventricular hemorrhage (IVH) on initial computed tomography (CT) was reported to predict lesions of diffuse axonal injury (DAI) in the corpus callosum (CC) on subsequent magnetic resonance imaging (MRI). We aimed to examine the relationship between initial CT findings and DAI lesions detected on MRI as well as the relationship between the severity of IVH (IVH score) and severity of DAI (DAI staging). A consecutive 140 patients with traumatic brain injury (TBI) who underwent MRI within 30 days after onset were revisited. We reviewed their initial CT for the following six findings: Status of basal cistern, status of mid-line shift, epidural hematoma, IVH, subarachnoid hemorrhage, and volume of hemorrhagic mass and IVH score were assigned in each patient. Based on MRI findings, patients were divided into DAI and non-DAI groups and were assigned a DAI staging. Then, to confirm that the IVH on initial CT predicts DAI lesions on MRI, we used multi-variate analysis of the six CT findings, including IVH, and examined the relationship between IVH score and DAI staging. The IVH detected on CT was the only predictor of DAI (p=0.0139). The IVH score and DAI staging showed significant positive correlation (p<0.0003). IVH score in DAI stage 3 (with DAI involving the brain stem; p=0.0025) or stage 2 (with DAI involving CC; p=0.0042) was significantly higher than that of DAI stage 0 (no DAI lesions). In conclusion, IVH on initial CT is the only marker of DAI on subsequent MRI, specifically severe DAI (stage 2 or 3).
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Affiliation(s)
- Daddy Mata-Mbemba
- 1 Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine , Sendai, Japan
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Beltran E, Platt S, McConnell J, Dennis R, Keys D, De Risio L. Prognostic value of early magnetic resonance imaging in dogs after traumatic brain injury: 50 cases. J Vet Intern Med 2014; 28:1256-62. [PMID: 24814522 PMCID: PMC4857941 DOI: 10.1111/jvim.12368] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 03/06/2014] [Accepted: 03/20/2014] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND The prognostic value of early magnetic resonance imaging (MRI) in dogs after traumatic brain injury (TBI) remains unclear. OBJECTIVES Determine whether MRI findings are associated with prognosis after TBI in dogs. ANIMALS Fifty client-owned dogs. METHODS Retrospective study of dogs with TBI that underwent 1.5T MRI within 14 days after head trauma. MRI evaluators were blinded to the clinical presentation, and all images were scored based on an MRI grading system (Grade I [normal brain parenchyma] to Grade VI [bilateral lesions affecting the brainstem with or without any lesions of lesser grade]). Skull fractures, percentage of intraparenchymal lesions, degree of midline shift, and type of brain herniation were evaluated. MGCS was assessed at presentation. The presence of seizures was recorded. Outcome was assessed at 48 h (alive or dead) and at 3, 6, 12, and 24 months after TBI. RESULTS Sixty-six percent of the dogs had abnormal MRI findings. MRI grade was negatively correlated (P < .001) with MGCS. A significant negative correlation of MRI grade, degree of midline shift, and percentage of intraparenchymal lesions with follow-up scores was identified. The MGCS was lower in dogs with brain herniation (P = .0191). Follow-up scores were significantly lower in dogs that had brain herniation or skull fractures. The possibility of having seizures was associated with higher percentage of intraparenchymal lesions (P = 0.0054) and 10% developed PTE. CONCLUSIONS AND CLINICAL IMPORTANCE Significant associations exist between MRI findings and prognosis in dogs with TBI. MRI can help to predict prognosis in dogs with TBI.
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Affiliation(s)
- E. Beltran
- Centre for Small Animal StudiesAnimal Health TrustNewmarketUK
| | - S.R. Platt
- College of Veterinary MedicineSmall Animal MedicineUniversity of GeorgiaAthensGA
| | - J.F. McConnell
- School of Veterinary ScienceUniversity of LiverpoolLiverpoolUK
| | - R. Dennis
- Centre for Small Animal StudiesAnimal Health TrustNewmarketUK
| | - D.A. Keys
- Independent Statistical ConsultantAthensGA
| | - L. De Risio
- Centre for Small Animal StudiesAnimal Health TrustNewmarketUK
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Moen KG, Brezova V, Skandsen T, Håberg AK, Folvik M, Vik A. Traumatic axonal injury: the prognostic value of lesion load in corpus callosum, brain stem, and thalamus in different magnetic resonance imaging sequences. J Neurotrauma 2014; 31:1486-96. [PMID: 24773587 DOI: 10.1089/neu.2013.3258] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of this study was to explore the prognostic value of visible traumatic axonal injury (TAI) loads in different MRI sequences from the early phase after adjusting for established prognostic factors. Likewise, we sought to explore the prognostic role of early apparent diffusion coefficient (ADC) values in normal-appearing corpus callosum. In this prospective study, 128 patients (mean age, 33.9 years; range, 11-69) with moderate (n = 64) and severe traumatic brain injury (TBI) were examined with MRI at a median of 8 days (range, 0-28) postinjury. TAI lesions in fluid-attenuated inversion recovery (FLAIR), diffusion-weighted imaging (DWI), and T2*-weighted gradient echo (T2*GRE) sequences were counted and FLAIR lesion volumes estimated. In patients and 47 healthy controls, mean ADC values were computed in 10 regions of interests in the normal-appearing corpus callosum. Outcome measure was the Glasgow Outcome Scale-Extended (GOS-E) at 12 months. In patients with severe TBI, number of DWI lesions and volume of FLAIR lesions in the corpus callosum, brain stem, and thalamus predicted outcome in analyses with adjustment for age, Glasgow Coma Scale score, and pupillary dilation (odds ratio, 1.3-6.9; p = <0.001-0.017). The addition of Rotterdam CT score and DWI lesions in the corpus callosum yielded the highest R2 (0.24), compared to all other MRI variables, including brain stem lesions. For patients with moderate TBI only the number of cortical contusions (p = 0.089) and Rotterdam CT score (p = 0.065) tended to predict outcome. Numbers of T2*GRE lesions did not affect outcome. Mean ADC values in the normal-appearing corpus callosum did not differ from controls. In conclusion, the loads of visible TAI lesions in the corpus callosum, brain stem, and thalamus in DWI and FLAIR were independent prognostic factors in patients with severe TBI. DWI lesions in the corpus callosum were the most important predictive MRI variable. Interestingly, number of cortical contusions in MRI and CT findings seemed more important for patients with moderate TBI.
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Affiliation(s)
- Kent G Moen
- 1 Department of Neuroscience, Norwegian University of Science and Technology , Trondheim, Norway
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Moen KT, Jørgensen L, Olsen A, Håberg A, Skandsen T, Vik A, Brubakk AM, Evensen KAI. High-level mobility in chronic traumatic brain injury and its relationship with clinical variables and magnetic resonance imaging findings in the acute phase. Arch Phys Med Rehabil 2014; 95:1838-45. [PMID: 24814461 DOI: 10.1016/j.apmr.2014.04.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 04/12/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To compare high-level mobility in individuals with chronic moderate-to-severe traumatic brain injury (TBI) with matched healthy controls, and to investigate whether clinical variables and magnetic resonance imaging (MRI) findings in the acute phase can predict high-level motor performance in the chronic phase. DESIGN A longitudinal follow-up study. SETTING A level 1 trauma center. PARTICIPANTS Individuals (N=136) with chronic TBI (n=65) and healthy matched peers (n=71). INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES High-Level Mobility Assessment Tool (HiMAT) and the revised version of the HiMAT performed at a mean of 2.8 years (range, 1.5-5.4y) after injury. RESULTS Participants with chronic TBI had a mean HiMAT score of 42.7 (95% confidence interval [CI], 40.2-45.2) compared with 47.7 (95% CI, 46.1-49.2) in the control group (P<.01). Group differences were also evident using the revised HiMAT (P<.01). Acute-phase clinical variables and MRI findings explained 58.8% of the variance in the HiMAT score (P<.001) and 59.9% in the revised HiMAT score (P<.001). Lower HiMAT scores were associated with female sex (P=.031), higher age at injury (P<.001), motor vehicle collisions (P=.030), and posttraumatic amnesia >7 days (P=.048). There was a tendency toward an association between lower scores and diffuse axonal injury in the brainstem (P=.075). CONCLUSIONS High-level mobility was reduced in participants with chronic, either moderate or severe TBI compared with matched peers. Clinical variables in the acute phase were significantly associated with high-level mobility performance in participants with TBI, but the role of early MRI findings needs to be further investigated. The findings of this study suggest that the clinical variables in the acute phase may be useful in predicting high-level mobility outcome in the chronic phase.
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Affiliation(s)
- Kine Therese Moen
- Stiftelsen CatoSenteret, Department of Medical Rehabilitation Services, Son, Norway.
| | - Lone Jørgensen
- Department of Health and Care Sciences and the Tromsø Endocrine Research Group, University of Tromsø, Tromsø, Norway; Department of Clinical Therapeutic Services, University Hospital of North Norway, Tromsø, Norway
| | - Alexander Olsen
- Department of Physical Medicine and Rehabilitation, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway; Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Asta Håberg
- Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway
| | - Toril Skandsen
- Department of Physical Medicine and Rehabilitation, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway; Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway
| | - Anne Vik
- Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway; Department of Neurosurgery, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Ann-Mari Brubakk
- Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kari Anne I Evensen
- Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway; Department of Public Health and General Practice, Norwegian University of Science and Technology, Trondheim, Norway; Department of Physiotherapy, Trondheim Municipality, Norway
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Mata-Mbemba D, Mugikura S, Nakagawa A, Murata T, Ishii K, Li L, Takase K, Kushimoto S, Takahashi S. Early CT findings to predict early death in patients with traumatic brain injury: Marshall and Rotterdam CT scoring systems compared in the major academic tertiary care hospital in northeastern Japan. Acad Radiol 2014; 21:605-11. [PMID: 24703472 DOI: 10.1016/j.acra.2014.01.017] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/28/2014] [Accepted: 01/28/2014] [Indexed: 11/29/2022]
Abstract
RATIONALE AND OBJECTIVES Computed tomography (CT) plays a crucial role in early assessment of patients with traumatic brain injury (TBI). Marshall and Rotterdam are the mostly used scoring systems, in which CT findings are grouped differently. We sought to determine the scoring system and initial CT findings predicting the death at hospital discharge (early death) in patients with TBI. MATERIALS AND METHODS We included 245 consecutive adult patients with mild-to-severe TBI. Their initial CT and status at hospital discharge (dead or alive) were reviewed, and both CT scores were calculated. We examined whether each score was related to early death; compared the two scoring systems' performance in predicting early death, and identified the CT findings that are independent predictors of early death. RESULTS More deaths occurred among patients with higher Marshall and Rotterdam scores (both P < .05, Mann-Whitney U test). The areas under the receiver operating characteristic curve (AUCs) indicated that both scoring systems had similarly good discriminative power in predicting early death (Marshall, AUC = 0. 85 vs. Rotterdam, AUC = 0.85). Basal cistern absence (odds ratio [OR] = 771.5, P < .0001), positive midline shift (OR = 56.2, P = .0011), hemorrhagic mass volume ≥25 mL (OR = 12.9, P = .0065), and intraventricular or subarachnoid hemorrhage (OR = 3.8, P = .0395) were independent predictors of early death. CONCLUSIONS Both Marshall and Rotterdam scoring systems can be used to predict early death in patients with TBI. The performance of the Marshall score is at least equal to that of the Rotterdam score. Thus, although older, the Marshall score remains useful in predicting patients' prognosis.
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Affiliation(s)
- Daddy Mata-Mbemba
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan
| | - Shunji Mugikura
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan.
| | - Atsuhiro Nakagawa
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takaki Murata
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan
| | - Kiyoshi Ishii
- Department of Radiology, Sendai City Hospital, Sendai, Japan
| | - Li Li
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan
| | - Kei Takase
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan
| | - Shigeki Kushimoto
- Division of Emergency Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shoki Takahashi
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai 980-8574, Japan
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Abstract
PURPOSE OF REVIEW Early prognostication in acute brain damage remains a challenge in the realm of critical care. There remains controversy over the most optimal methods that can be utilized to predict outcome. The utility of recently reported prognostic biomarkers and clinical methods will be reviewed. RECENT FINDINGS Recent guidelines touch upon prognostication techniques as part of management recommendations. In addition to novel laboratory values, there have been few reports on the use of clinical parameters, diagnostic imaging techniques, and electrophysiological techniques to assist in prognostication. SUMMARY Although encouraging, newer markers are not capable of providing accurate estimates on outcomes in acute injuries of the central nervous system. Traditional markers of prognostication may not be applicable in the light of newer and effective therapies (i.e. hypothermia). Substantial research in the field of outcome determination is in progress, but these studies need to be interpreted with caution.
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45
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Roscigno CI, Grant G, Savage TA, Philipsen G. Parent perceptions of early prognostic encounters following children's severe traumatic brain injury: 'locked up in this cage of absolute horror'. Brain Inj 2013; 27:1536-48. [PMID: 24087991 DOI: 10.3109/02699052.2013.831122] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Little guidance exists for discussing prognosis in early acute care with parents following children's severe traumatic brain injury (TBI). Providers' beliefs about truth-telling can shape what is said, how it is said and how providers respond to parents. METHODS This study was part of a large qualitative study conducted in the US (42 parents/37 families) following children's moderate-to-severe TBI (2005-2007). Ethnography of speaking was used to analyse interviews describing early acute care following children's severe TBI (29 parents/25 families). RESULTS Parents perceived that: (a) parents were disadvantaged by provider delivery; (b) negative outcome values dominated some provider's talk; (c) truth-telling involves providers acknowledging all possibilities; (d) framing the child's prognosis with negative medical certainty when there is some uncertainty could damage parent-provider relationships; (e) parents needed to remain optimistic; and (f) children's outcomes could differ from providers' early acute care prognostications. CONCLUSION Parents blatantly and tacitly revealed their beliefs that providers play an important role in shaping parent reception of and synthesis of prognostic information, which constructs the family's ability to cope and participate in shared decision-making. Negative medical certainty created a fearful or threatening environment that kept parents from being fully informed.
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Hilario A, Ramos A, Lagares A. Traumatic brain stem injury: evaluation by MRI. Author reply. AJNR Am J Neuroradiol 2013; 34:E57. [PMID: 23819159 DOI: 10.3174/ajnr.a3577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Jellinger KA. Neuropathology of prolonged unresponsive wakefulness syndrome after blunt head injury: review of 100 post-mortem cases. Brain Inj 2013; 27:917-23. [PMID: 23758492 DOI: 10.3109/02699052.2013.793395] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Recently, 'unresponsive wakefulness syndrome' (UWS) was coined for challenging conditions previously termed vegetative state or apallic syndrome. MATERIALS AND METHODS In a post-mortem series of 630 patients who sustained a blunt traumatic brain injury, 100 (59 men and 41 women, aged 5-86 years; 77% traffic accidents, 23% falls and others) showed various disorders of consciousness which were compared with neuropathology with focus on brainstem lesions. RESULTS In the total autopsy series (n = 630), the incidence of cortical contusions, diffuse axonal injury (DAI) and intracranial haemorrhages was 41, 55 and 73%, respectively, of diencephalic, hypothalamic and hippocampal lesions 62% each, brainstem lesions 92%. Clinical prognosis was related to the location and extent of brainstem damage. Lesions in central parts of the rostral brainstem, frequently associated with extensive DAI, allowed no recovery from coma or UWS (n = 67), which occurred only with damage to the dorso-lateral brainstem tegmentum or pontine basis (n = 33). Only two of 11 patients with minimally conscious state (MCS), in addition to haemorrhages (n = 4), contusions (n = 10) and DAI (n = 7), showed small lesions in dorsolateral pontine tegmentum or diffuse pontine gliosis. CONCLUSIONS These and other data confirm the importance of the pattern and extent of brainstem damage for the prognosis of UWS, only small peripheral lesions in pontine tegmentum allowing progressive remission.
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Affiliation(s)
- Kurt A Jellinger
- Institute of Clinical Neurobiology, Medical University Vienna, Kenyongasse 18, Vienna, Austria.
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Pedraza S. [Usefulness of magnetic resonance imaging in traumatic brain injury]. Med Intensiva 2013; 37:373-4. [PMID: 23578481 DOI: 10.1016/j.medin.2013.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 02/06/2013] [Accepted: 02/09/2013] [Indexed: 11/19/2022]
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49
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Shibata Y. Traumatic brain stem injury: evaluation by MRI. AJNR Am J Neuroradiol 2013; 34:E56. [PMID: 23538414 DOI: 10.3174/ajnr.a3555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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