Download or read book Three Dimensional Deformable Modeling of the Spine written by Rania Atef and published by . This book was released on 2002 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this work is the development of a 3D deformable model of the spinal lumbar region.
Download or read book Automated Analysis of Spinal Structures in Three dimensional Medical Images Using Deformable Models written by Robert Korez and published by . This book was released on 2016 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book THREE DIMENSIONAL MODELING OF THE LUMBAR SPINE written by Ayman Kassem and published by . This book was released on 2010-04 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Refinement and Validation of a Three Dimensional Head Spine Model written by and published by . This book was released on 1978 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three dimensional discrete model of human spine, torso and head has been refined and validated by comparison with available experimental results. The model consists of a system of rigid bodies, representing the head, vertebrae, and ribs, interconnected by deformable elements which represent the intervertebral discs, ligaments, and other connective tissues. Four models of varying orders of complexity have been developed, ranging from a complex model to a very simplified model with 32 degrees of freedom. The simplified model is able to closely reproduce many of the response characteristics of the more complex models in G sub z loadings, and, because of its simplicity and short running time, may be well suited for design use. Experimental results for human subjects suitable for validation of models are primarily available in the form of impedance curves for vertical harmonic excitation so techniques were developed which efficiently obtain impedance curves for the model. Comparisons of the impedance curves show good agreement, both in the magnitudes and locations of peaks. Furthermore, it was shown that the primary peaks in the impedance curve in the 5 to 7 Hz range result from a combination of buttock-seat resonance, the flexural response of the spine and visceral resonance. Analogous head-spine models were developed for the chimpanzee, baboon, and rhesus monkey. The objective of this development was to provide a scaling methodology for dynamic response and injury data among these non-human primates and man. Impedance curves are presented for these models and show significant differences in character from that of the human spine models.
Download or read book A Two dimensional Human Spine Simulation and Three dimensional Spine Model Construction written by Jianzhi Liu and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: This thesis describes two different, but complementary modeling tasks for the human spine. Methodologies for modeling and simulation of the motion of the human spine vary dramatically in complexity. While providing detailed stress and strain field representations, full finite element modeling of the human spine can be computationally expensive. Alternatively, nonlinear multibody dynamics representations are often used because of their simplicity. These formulations employ rigid models of vertebrae interconnected via conventional mechanical joints. However, it is well documented that inter-vertebral motion can depart significantly from conventional mechanical joint constraints. We present an identification methodology that employs a relaxation technique in which joint mechanical properties are represented via a probability measure. In addition we describe an effort to obtain accurate three-dimensional models of the human spine. These efforts are motivated by considering scoliosis. Scoliosis is defined as abnormal lateral curvature of the spine. It is usually considered as a three-dimensional deformity, because axial rotation will always accompany the lateral curvature. The correction of the deformity is required when the patient risks severe deformity. A three-dimensional spine model is constructed and a computer simulation tool is provided.
Download or read book Three Dimensional Modeling of the Lumbar Spine for Simulation Purposes written by Ayman Hamdy Mohamed Kassem and published by . This book was released on 2002 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research, a spinal toolbox, for modeling lumbar spine, was built which contains different types of models (i.e. spinal element, Ligaments, discs, and beam models) to be used for specific loading cases.
Download or read book 3 dimensional Model of the Kinematics of the Human Spine written by Tsang Yeou Chen and published by . This book was released on 1985 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spinal Imaging and Image Analysis written by Shuo Li and published by Springer. This book was released on 2014-12-17 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is instrumental to building a bridge between scientists and clinicians in the field of spine imaging by introducing state-of-the-art computational methods in the context of clinical applications. Spine imaging via computed tomography, magnetic resonance imaging, and other radiologic imaging modalities, is essential for noninvasively visualizing and assessing spinal pathology. Computational methods support and enhance the physician’s ability to utilize these imaging techniques for diagnosis, non-invasive treatment, and intervention in clinical practice. Chapters cover a broad range of topics encompassing radiological imaging modalities, clinical imaging applications for common spine diseases, image processing, computer-aided diagnosis, quantitative analysis, data reconstruction and visualization, statistical modeling, image-guided spine intervention, and robotic surgery. This volume serves a broad audience as contributions were written by both clinicians and researchers, which reflects the intended readership as well, being a potentially comprehensive book for all spine related clinicians, technicians, scientists, and graduate students.
Download or read book Three Dimensional Analysis of Spinal Deformities written by M. D'Amico and published by IOS Press. This book was released on 1995 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in Shape of the Spine with Idiopathic Scoliosis after Harrington or C-D Instrumentation: The Plan View -- 3-D Correction Obtained with the C-D Procedure During Surgery -- Results of Treatment of Scoliosis with the Cotrel-Dubousset Technique -- Technics and Preliminary Results Colorado -- A Preliminary Report on the Surgical Realignment of Adolescent Idiopathic Scoliosis with Isola Instrumentation -- Osteoporotic Fractures with Neurological Complications -- Simulation of Surgical Maneuvers with C-D Instrumentation -- Adolescence and Orthopaedic Braces: Psychological Conflicts? -- Preliminary Results of Specific Exercises During In-Patient Scoliosis Rehabilitation -- Cardiopulmonary Performance in Patients with Severe Scoliosis - Outcome after Specific Rehabilitation -- Scoliotic Flatback and Specific Rehabilitation -- Chapter 6. Surface Topography & Internal 3-D Spinal and/or Trunk Anatomy -- Scoliosis Follow-Up by Back Shape Analysis -- Evaluation of Its Reliability -- Digital 3D Moiré - Topography -- Evolution of Scoliosis by Optical Scanner I.S.I.S. -- Automated 360° Degree Profilometry of Human Trunk for Spinal Deformity Analysis -- Spinal Surface Digitization Using 'Metrecom' in Scoliosis Screening -- High-Resolution Rasterstereography -- Reproducibility and Reliability of the Quantec Surface Imaging System in the Assessment of Spinal Deformity -- Investigation of the Diurnal Variation in the Water Content of the Intervertebral Disc Using MRI and Its Implications for Scoliosis -- Author Index
Download or read book Biomechanics of the Spine written by Navid Soltani and published by LAP Lambert Academic Publishing. This book was released on 2014-02 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: To achieve a new method for predicting the result of disc replacement or to predict biomechanics of lumbar (or any other skeletal segment) by finite element model analysis, its necessary to follow an organized procedure including 3D bone model, meshing the proposed model, designing an artificial implant and simulation of loading condition. In this study we try to explain the whole procedure step by step from importing the CT image to analysis of lumbar section with designed implant. First it's explained how the 3D model can be made based on the CT image using MIMICS software and some details related to simulation of the skeletal model by this software will be released. Second part shows the tutorial method for importing proposed model in ABAQUS software and how it can be analyzed. This step by step tutorial is helpful in lumbar biomechanics and creating human body skeletal model. Also it is useful to achieve a perfect procedure for creating and analyzing lumbar disc implant.
Download or read book A Three Dimensional Finite Element Model to Study the Biomechanical and Kinematic Characteristics of the Human Lumbar Spine in Flexion written by Dhruv Jitesh Mehta and published by . This book was released on 2007 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the research was to develop a three-dimensional finite element model to study the biomechanical and kinematic characteristics of the human lumbar spine in flexion. An analytical model of the lumbar spine capable of taking into consideration the actual geometry, non-linear material properties and realistic loading would be of benefit in studying normal biomechanics, as well as in-vivo behavior in injured and surgically altered spines. Fundamental to this approach is an accurate model of the spine. This was achieved by modeling the lumbar segments L2-L4 from Computed Tomography (CT) data and analyzing them under loading conditions that best approximated the human lumbar segments in flexion. An in-vitro study was performed for validation of the finite element model. Human lumbar cadaveric spinal segments (L2-L4) were loaded based on test conditions similar to those defined in the finite element analysis. The results of the cadaver biomechanical study and finite element analysis were compared. The results suggest that the model is a valid approach to assessing the range of motion of the L3 segment under flexion. Rotation under lateral bending moments was additionally investigated to provide a thorough validation of the model.
Download or read book Computational Methods and Clinical Applications for Spine Imaging written by Jianhua Yao and published by Springer. This book was released on 2014-07-11 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the full papers presented at the MICCAI 2013 workshop Computational Methods and Clinical Applications for Spine Imaging. The workshop brought together researchers representing several fields, such as Biomechanics, Engineering, Medicine, Mathematics, Physics and Statistic. The works included in this book present and discuss new trends in those fields, using several methods and techniques in order to address more efficiently different and timely applications involving signal and image acquisition, image processing and analysis, image segmentation, image registration and fusion, computer simulation, image based modelling, simulation and surgical planning, image guided robot assisted surgical and image based diagnosis.
Download or read book A Study of a Three Dimensional Finite Element Model of L2 3 Vertebra disc vertebra of Human Lumbar Spine written by Qiming Lian and published by . This book was released on 1996 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Three dimensional Finite Element Modeling in Investigating Injury Mechanism in the Cervical Spine written by Kevin J. Bozic and published by . This book was released on 1994 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Medical Image Computing and Computer Assisted Intervention MICCAI 98 written by William M. Wells and published by Springer. This book was released on 2006-08-18 with total page 1279 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the First International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI'98, held in Cambridge, MA, USA, in October 1998. The 134 revised papers presented were carefully selected from a total of 243 submissions. The book is divided into topical sections on surgical planning, surgical navigation and measurements, cardiac image analysis, medical robotic systems, surgical systems and simulators, segmentation, computational neuroanatomy, biomechanics, detection in medical images, data acquisition and processing, neurosurgery and neuroscience, shape analysis, feature extraction, registration, and ultrasound.
Download or read book Construction of a Three dimensional Geometric Model for Segmentation and Visualization of Cervical Spine Images written by Ramani Pichumani and published by . This book was released on 1997 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report introduces a new technique for automatically extracting vertebral segments from three-dimensional computerized tomography (CT) and magnetic resonance (MR) images of the human cervical spine. An important motivation for this work is to provide accurate information for registration and for fusion of CT and MR images into a composite three-dimensional image. One of the major hurdles in performing image fusion is the difficulty of extracting and matching corresponding anatomical regions in an accurate, robust, and timely manner. The complementary properties of soft and bony tissues revealed in CT and MR imaging modalities makes it challenging to extract corresponding regions that can be correlated in an accurate and robust manner. Ambiguities in the images due to noise, distortion, limited resolution, and patient-specific structural variations also create additional challenges. Whereas fusion of CT and MR images of the cranium have already been performed, no one has yet developed an automated technique for fusing multimodality images of the spine. Unlike the head, which is relatively rigid, the spine is a complex, articulating object and is subject to structural deformation throughout the multimodal scanning process.
Download or read book Intelligent Robotics and Applications written by Huayong Yang and published by Springer Nature. This book was released on 2023-11-06 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 9-volume set LNAI 14267-14275 constitutes the proceedings of the 16th International Conference on Intelligent Robotics and Applications, ICIRA 2023, which took place in Hangzhou, China, during July 5–7, 2023. The 413 papers included in these proceedings were carefully reviewed and selected from 630 submissions. They were organized in topical sections as follows: Part I: Human-Centric Technologies for Seamless Human-Robot Collaboration; Multimodal Collaborative Perception and Fusion; Intelligent Robot Perception in Unknown Environments; Vision-Based Human Robot Interaction and Application. Part II: Vision-Based Human Robot Interaction and Application; Reliable AI on Machine Human Reactions; Wearable Sensors and Robots; Wearable Robots for Assistance, Augmentation and Rehabilitation of Human Movements; Perception and Manipulation of Dexterous Hand for Humanoid Robot. Part III: Perception and Manipulation of Dexterous Hand for Humanoid Robot; Medical Imaging for Biomedical Robotics; Advanced Underwater Robot Technologies; Innovative Design and Performance Evaluation of Robot Mechanisms; Evaluation of Wearable Robots for Assistance and Rehabilitation; 3D Printing Soft Robots. Part IV: 3D Printing Soft Robots; Dielectric Elastomer Actuators for Soft Robotics; Human-like Locomotion and Manipulation; Pattern Recognition and Machine Learning for Smart Robots. Part V: Pattern Recognition and Machine Learning for Smart Robots; Robotic Tactile Sensation, Perception, and Applications; Advanced Sensing and Control Technology for Human-Robot Interaction; Knowledge-Based Robot Decision-Making and Manipulation; Design and Control of Legged Robots. Part VI: Design and Control of Legged Robots; Robots in Tunnelling and Underground Space; Robotic Machining of Complex Components; Clinically Oriented Design in Robotic Surgery and Rehabilitation; Visual and Visual-Tactile Perception for Robotics. Part VII: Visual and Visual-Tactile Perception for Robotics; Perception, Interaction, and Control of Wearable Robots; Marine Robotics and Applications; Multi-Robot Systems for Real World Applications; Physical and Neurological Human-Robot Interaction. Part VIII: Physical and Neurological Human-Robot Interaction; Advanced Motion Control Technologies for Mobile Robots; Intelligent Inspection Robotics; Robotics in Sustainable Manufacturing for Carbon Neutrality; Innovative Design and Performance Evaluation of Robot Mechanisms. Part IX: Innovative Design and Performance Evaluation of Robot Mechanisms; Cutting-Edge Research in Robotics.
