Study of an infant brain subjected to periodic motion via a custom experimental apparatus design and finite element modelling

Abstract This paper presents a rig that was specifically designed to simulate the shaking of mechanical models of biological systems, especially those related to shaken baby syndrome (SBS). The scope of this paper includes the testing of an anthropomorphic model that simulates an infant head and pro...

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Veröffentlicht in:Journal of biomechanics 2010-11, Vol.43 (15), p.2887-2896
Hauptverfasser: Cheng, J, Howard, I.C, Rennison, M
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creator Cheng, J
Howard, I.C
Rennison, M
description Abstract This paper presents a rig that was specifically designed to simulate the shaking of mechanical models of biological systems, especially those related to shaken baby syndrome (SBS). The scope of this paper includes the testing of an anthropomorphic model that simulates an infant head and provides validation data for complex finite element (FE) modelling using three numerical methods (Lagrangian, Arbitrary-Lagrangian–Eulerian (ALE) and Eulerian method) for fluid structure coupling. The experiments for this study aim to provide an understanding of the influence of two factors on intracranial brain movement of the infant head during violent shaking: (1) the specific paediatric head structure: the anterior fontanelle and (2) the brain–skull interface. The results show that the Eulerian analysis method has significant advantages for the FSI modelling of brain–CSF–skull interactions over the more commonly used methods, e.g. the Lagrangian method. To the knowledge of the authors, this methodology has not been discussed in previous publication. The results indicate that the biomechanical investigation of SBS can provide more accurate results only if the skull with paediatric features and the brain–skull interface are correctly represented, which were overlooked in previous SBS studies.
doi_str_mv 10.1016/j.jbiomech.2010.07.023
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The scope of this paper includes the testing of an anthropomorphic model that simulates an infant head and provides validation data for complex finite element (FE) modelling using three numerical methods (Lagrangian, Arbitrary-Lagrangian–Eulerian (ALE) and Eulerian method) for fluid structure coupling. The experiments for this study aim to provide an understanding of the influence of two factors on intracranial brain movement of the infant head during violent shaking: (1) the specific paediatric head structure: the anterior fontanelle and (2) the brain–skull interface. The results show that the Eulerian analysis method has significant advantages for the FSI modelling of brain–CSF–skull interactions over the more commonly used methods, e.g. the Lagrangian method. To the knowledge of the authors, this methodology has not been discussed in previous publication. The results indicate that the biomechanical investigation of SBS can provide more accurate results only if the skull with paediatric features and the brain–skull interface are correctly represented, which were overlooked in previous SBS studies.</description><identifier>ISSN: 0021-9290</identifier><identifier>EISSN: 1873-2380</identifier><identifier>DOI: 10.1016/j.jbiomech.2010.07.023</identifier><identifier>PMID: 20708735</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Adult and adolescent clinical studies ; Algorithms ; Anterior fontanelle ; Arbitrary-Lagrangian–Eulerian (ALE) ; Biological and medical sciences ; Biomechanical Phenomena ; Biomechanics ; Biomedical Engineering - instrumentation ; Brain ; Brain - physiopathology ; Brain–skull interface ; Computer simulation ; Computerized, statistical medical data processing and models in biomedicine ; Experimental apparatus ; Experiments ; Finite element ; Finite Element Analysis ; Finite element method ; Fluid structural interaction (FSI) ; Gelatin ; Head injuries ; Head injury ; Humans ; Infant ; Infants ; Injuries of the nervous system and the skull. 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The scope of this paper includes the testing of an anthropomorphic model that simulates an infant head and provides validation data for complex finite element (FE) modelling using three numerical methods (Lagrangian, Arbitrary-Lagrangian–Eulerian (ALE) and Eulerian method) for fluid structure coupling. The experiments for this study aim to provide an understanding of the influence of two factors on intracranial brain movement of the infant head during violent shaking: (1) the specific paediatric head structure: the anterior fontanelle and (2) the brain–skull interface. The results show that the Eulerian analysis method has significant advantages for the FSI modelling of brain–CSF–skull interactions over the more commonly used methods, e.g. the Lagrangian method. To the knowledge of the authors, this methodology has not been discussed in previous publication. The results indicate that the biomechanical investigation of SBS can provide more accurate results only if the skull with paediatric features and the brain–skull interface are correctly represented, which were overlooked in previous SBS studies.</description><subject>Adult and adolescent clinical studies</subject><subject>Algorithms</subject><subject>Anterior fontanelle</subject><subject>Arbitrary-Lagrangian–Eulerian (ALE)</subject><subject>Biological and medical sciences</subject><subject>Biomechanical Phenomena</subject><subject>Biomechanics</subject><subject>Biomedical Engineering - instrumentation</subject><subject>Brain</subject><subject>Brain - physiopathology</subject><subject>Brain–skull interface</subject><subject>Computer simulation</subject><subject>Computerized, statistical medical data processing and models in biomedicine</subject><subject>Experimental apparatus</subject><subject>Experiments</subject><subject>Finite element</subject><subject>Finite Element Analysis</subject><subject>Finite element method</subject><subject>Fluid structural interaction (FSI)</subject><subject>Gelatin</subject><subject>Head injuries</subject><subject>Head injury</subject><subject>Humans</subject><subject>Infant</subject><subject>Infants</subject><subject>Injuries of the nervous system and the skull. Diseases due to physical agents</subject><subject>Mathematical models</subject><subject>Medical research</subject><subject>Medical sciences</subject><subject>Modelling</subject><subject>Models and simulation</subject><subject>Models, Neurological</subject><subject>Movement - physiology</subject><subject>Organic mental disorders. Neuropsychology</subject><subject>Paediatrics</subject><subject>Personal relationships</subject><subject>Physical Medicine and Rehabilitation</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychopathology. Psychiatry</subject><subject>Shaken baby syndrome</subject><subject>Shaken Baby Syndrome - etiology</subject><subject>Shaken Baby Syndrome - physiopathology</subject><subject>Stress, Mechanical</subject><subject>Studies</subject><subject>Traumas. 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Diseases due to physical agents</topic><topic>Mathematical models</topic><topic>Medical research</topic><topic>Medical sciences</topic><topic>Modelling</topic><topic>Models and simulation</topic><topic>Models, Neurological</topic><topic>Movement - physiology</topic><topic>Organic mental disorders. Neuropsychology</topic><topic>Paediatrics</topic><topic>Personal relationships</topic><topic>Physical Medicine and Rehabilitation</topic><topic>Psychology. Psychoanalysis. Psychiatry</topic><topic>Psychopathology. Psychiatry</topic><topic>Shaken baby syndrome</topic><topic>Shaken Baby Syndrome - etiology</topic><topic>Shaken Baby Syndrome - physiopathology</topic><topic>Stress, Mechanical</topic><topic>Studies</topic><topic>Traumas. 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The scope of this paper includes the testing of an anthropomorphic model that simulates an infant head and provides validation data for complex finite element (FE) modelling using three numerical methods (Lagrangian, Arbitrary-Lagrangian–Eulerian (ALE) and Eulerian method) for fluid structure coupling. The experiments for this study aim to provide an understanding of the influence of two factors on intracranial brain movement of the infant head during violent shaking: (1) the specific paediatric head structure: the anterior fontanelle and (2) the brain–skull interface. The results show that the Eulerian analysis method has significant advantages for the FSI modelling of brain–CSF–skull interactions over the more commonly used methods, e.g. the Lagrangian method. To the knowledge of the authors, this methodology has not been discussed in previous publication. The results indicate that the biomechanical investigation of SBS can provide more accurate results only if the skull with paediatric features and the brain–skull interface are correctly represented, which were overlooked in previous SBS studies.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>20708735</pmid><doi>10.1016/j.jbiomech.2010.07.023</doi><tpages>10</tpages></addata></record>
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subjects Adult and adolescent clinical studies
Algorithms
Anterior fontanelle
Arbitrary-Lagrangian–Eulerian (ALE)
Biological and medical sciences
Biomechanical Phenomena
Biomechanics
Biomedical Engineering - instrumentation
Brain
Brain - physiopathology
Brain–skull interface
Computer simulation
Computerized, statistical medical data processing and models in biomedicine
Experimental apparatus
Experiments
Finite element
Finite Element Analysis
Finite element method
Fluid structural interaction (FSI)
Gelatin
Head injuries
Head injury
Humans
Infant
Infants
Injuries of the nervous system and the skull. Diseases due to physical agents
Mathematical models
Medical research
Medical sciences
Modelling
Models and simulation
Models, Neurological
Movement - physiology
Organic mental disorders. Neuropsychology
Paediatrics
Personal relationships
Physical Medicine and Rehabilitation
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Shaken baby syndrome
Shaken Baby Syndrome - etiology
Shaken Baby Syndrome - physiopathology
Stress, Mechanical
Studies
Traumas. Diseases due to physical agents
title Study of an infant brain subjected to periodic motion via a custom experimental apparatus design and finite element modelling
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