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Modified Mass Spring System For Physically Based Deformation Modeling
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Book Synopsis Modified Mass-spring System for Physically Based Deformation Modeling by : Oussama Jarrousse
Download or read book Modified Mass-spring System for Physically Based Deformation Modeling written by Oussama Jarrousse and published by KIT Scientific Publishing. This book was released on 2014-09 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mass-spring systems are considered the simplest and most intuitive of all deformable models. They are computationally efficient, and can handle large deformations with ease. But they suffer several intrinsic limitations. In this book a modified mass-spring system for physically based deformation modeling that addresses the limitations and solves them elegantly is presented. Several implementations in modeling breast mechanics, heart mechanics and for elastic images registration are presented.
Book Synopsis Modified Mass-spring System for Physically Based Deformation Modeling by : Oussama Jarrousse
Download or read book Modified Mass-spring System for Physically Based Deformation Modeling written by Oussama Jarrousse and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Personalized Multi-Scale Modeling of the Atria: Heterogeneities, Fiber Architecture, Hemodialysis and Ablation Therapy by : Martin Wolfgang Krüger
Download or read book Personalized Multi-Scale Modeling of the Atria: Heterogeneities, Fiber Architecture, Hemodialysis and Ablation Therapy written by Martin Wolfgang Krüger and published by KIT Scientific Publishing. This book was released on 2014-05-22 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book targets three fields of computational multi-scale cardiac modeling. First, advanced models of the cellular atrial electrophysiology and fiber orientation are introduced. Second, novel methods to create patient-specific models of the atria are described. Third, applications of personalized models in basic research and clinical practice are presented. The results mark an important step towards the patient-specific model-based atrial fibrillation diagnosis, understanding and treatment.
Book Synopsis Modeling Human Atrial Patho-Electrophysiology from Ion Channels to ECG - Substrates, Pharmacology, Vulnerability, and P-Waves by : Loewe, Axel
Download or read book Modeling Human Atrial Patho-Electrophysiology from Ion Channels to ECG - Substrates, Pharmacology, Vulnerability, and P-Waves written by Loewe, Axel and published by KIT Scientific Publishing. This book was released on 2016-08-03 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Half of the patients suffering from atrial fibrillation (AF) cannot be treated adequately, today. This book presents multi-scale computational methods to advance our understanding of patho-mechanisms, to improve the diagnosis of patients harboring an arrhythmogenic substrate, and to tailor therapy. The modeling pipeline ranges from ion channels on the subcellular level up to the ECG on the body surface. The tailored therapeutic approaches carry the potential to reduce the burden of AF.
Book Synopsis Multiscale Modeling of Cardiac Electrophysiology: Adaptation to Atrial and Ventricular Rhythm Disorders and Pharmacological Treatment by : Mathias Wilhelms
Download or read book Multiscale Modeling of Cardiac Electrophysiology: Adaptation to Atrial and Ventricular Rhythm Disorders and Pharmacological Treatment written by Mathias Wilhelms and published by KIT Scientific Publishing. This book was released on 2014-05-22 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiscale modeling of cardiac electrophysiology helps to better understand the underlying mechanisms of atrial fibrillation, acute cardiac ischemia and pharmacological treatment. For this purpose, measurement data reflecting these conditions have to be integrated into models of cardiac electrophysiology. Several methods for this model adaptation are introduced in this thesis. The resulting effects are investigated in multiscale simulations ranging from the ion channel up to the body surface.AbstractEnglisch = Multiscale modeling of cardiac electrophysiology helps to better understand the underlying mechanisms of atrial fibrillation, acute cardiac ischemia and pharmacological treatment. For this purpose, measurement data reflecting these conditions have to be integrated into models of cardiac electrophysiology. Several methods for this model adaptation are introduced in this thesis. The resulting effects are investigated in multiscale simulations ranging from the ion channel up to the body surface.
Book Synopsis Multiscale Cohort Modeling of Atrial Electrophysiology : Risk Stratification for Atrial Fibrillation through Machine Learning on Electrocardiograms by : Nagel, Claudia
Download or read book Multiscale Cohort Modeling of Atrial Electrophysiology : Risk Stratification for Atrial Fibrillation through Machine Learning on Electrocardiograms written by Nagel, Claudia and published by KIT Scientific Publishing. This book was released on 2023-04-24 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: An early detection and diagnosis of atrial fibrillation sets the course for timely intervention to prevent potentially occurring comorbidities. Electrocardiogram data resulting from electrophysiological cohort modeling and simulation can be a valuable data resource for improving automated atrial fibrillation risk stratification with machine learning techniques and thus, reduces the risk of stroke in affected patients.
Book Synopsis ECG Based Analysis of the Ventricular Repolarisation in the Human Heart by : Baas, Tobias
Download or read book ECG Based Analysis of the Ventricular Repolarisation in the Human Heart written by Baas, Tobias and published by KIT Scientific Publishing. This book was released on 2012-08-06 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: ECG recordings provide diagnostic relevant information on the de- and repolarisation sequences of the heart. A modification of the repolarisation sequence is assumed to cause Torsades de Pointes. Especially drug induced effects on the repolarisation processes are in focus, since some non-cardiac drugs have been associated with sudden cardiac death in the 1990s.The analysis of the ventricular repolarisation using a set of parameters depicting the morphology of the T-wave is introduced in this work. Therefore, new methods of fully automatic patient-specific QRS detection, beat classification and precise T-wave delineation are presented. Using these methods, medical studies are investigated regarding the modification of the T-wave by different compounds. Also the impact of the heart rate on the morphology of the T-wave is part of this research.The reliable identification of ventricular ectopic beats allows an analysis of the influence of these beats on subsequent heart beats. It turned out that the morphology of subsequent heart beats can significantly be changed. This might give new information on the proarrythmical risk of ventricular ectopic beats.
Book Synopsis Analysis of Atrial Electrograms by : Christopher Schilling
Download or read book Analysis of Atrial Electrograms written by Christopher Schilling and published by KIT Scientific Publishing. This book was released on 2012 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work provides methods to measure and analyze features of atrial electrograms - especially complex fractionated atrial electrograms (CFAEs) - mathematically. Automated classification of CFAEs into clinical meaningful classes is applied and the newly gained electrogram information is visualized on patient specific 3D models of the atria. Clinical applications of the presented methods showed that quantitative measures of CFAEs reveal beneficial information about the underlying arrhythmia.
Book Synopsis Formation of Intracardiac Electrograms under Physiological and Pathological Conditions by : Keller, Matthias
Download or read book Formation of Intracardiac Electrograms under Physiological and Pathological Conditions written by Keller, Matthias and published by KIT Scientific Publishing. This book was released on 2014-09-09 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents methods to advance electrophysiological simulations of intracardiac electrograms (IEGM). An experimental setup is introduced, which combines electrical measurements of extracellular potentials with a method for optical acquisition of the transmembrane voltage in-vitro. Thereby, intracardiac electrograms can be recorded under defined conditions. Using experimental and clinical signals, detailed simulations of IEGMs are parametrized, which can support clinical diagnosis.
Book Synopsis ECG Imaging of Ventricular Activity in Clinical Applications by : Schulze, Walther H. W.
Download or read book ECG Imaging of Ventricular Activity in Clinical Applications written by Schulze, Walther H. W. and published by KIT Scientific Publishing. This book was released on 2015-08-12 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: ECG imaging was performed in humans to reconstruct ventricular activation patterns and localize their excitation origins. The precision of the non-invasive reconstructions was evaluated against invasive measurements and found to be in line with the state-of-the-art literature. Statistics were produced for various excitation origins and reveal the beat-to-beat robustness of the imaging method.
Book Synopsis Characterizing Cardiac Electrophysiology during Radiofrequency Ablation : An Integrative Ex vivo, In silico, and In vivo Approach by : Pollnow, Stefan
Download or read book Characterizing Cardiac Electrophysiology during Radiofrequency Ablation : An Integrative Ex vivo, In silico, and In vivo Approach written by Pollnow, Stefan and published by KIT Scientific Publishing. This book was released on 2019-04-23 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Multiscale In Silico Study to Characterize the Atrial Electrical Activity of Patients With Atrial Fibrillation : A Translational Study to Guide Ablation Therapy by : Sánchez Arciniegas, Jorge Patricio
Download or read book A Multiscale In Silico Study to Characterize the Atrial Electrical Activity of Patients With Atrial Fibrillation : A Translational Study to Guide Ablation Therapy written by Sánchez Arciniegas, Jorge Patricio and published by KIT Scientific Publishing. This book was released on 2022-05-30 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The atrial substrate undergoes electrical and structural remodeling during atrial fibrillation. Detailed multiscale models were used to study the effect of structural remodeling induced at the cellular and tissue levels. Simulated electrograms were used to train a machine-learning algorithm to characterize the substrate. Also, wave propagation direction was tracked from unannotated electrograms. In conclusion, in silico experiments provide insight into electrograms' information of the substrate.
Book Synopsis Medicine Meets Virtual Reality 13 by : J.D. Westwood
Download or read book Medicine Meets Virtual Reality 13 written by J.D. Westwood and published by IOS Press. This book was released on 2005-01-13 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magical describes conditions that are outside our understanding of cause and effect. What cannot be attributed to human or natural forces is explained as magic: super-human, super-natural. Even in modern societies, magic-based explanations are powerful because, given the complexity of the universe, there are so many opportunities to use them. The history of medicine is defined by progress in understanding the human body - from magical explanations to measurable results. To continue medical progress, physicians and scientists must openly question traditional models. Valid inquiry demands a willingness to consider all possible solutions without prejudice. Medical politics should not perpetuate unproven assumptions nor curtail reasoned experimentation, unbiased measurement and well-informed analysis. For thirteen years, Medicine Meets Virtual Reality has been an incubator for technologies that create new medical understanding via the simulation, visualization and extension of reality. Researchers create imaginary patients because they offer a more reliable and controllable experience to the novice surgeon. With imaging tools, reality is purposefully distorted to reveal to the clinician what the eye alone cannot see. Robotics and intelligence networks allow the healer’s sight, hearing, touch and judgment to be extended across distance, as if by magic. The moments when scientific truth is suddenly revealed after lengthy observation, experimentation and measurement, is the real magic. These moments are not miraculous, however. They are human ingenuity in progress and they are documented here in this book.
Book Synopsis Parallel Computing Technologies by : Victor Malyshkin
Download or read book Parallel Computing Technologies written by Victor Malyshkin and published by Springer. This book was released on 2015-07-24 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 13th International Conference on Parallel Computing Technologies, PaCT 2015, held in Petrozavodsk, Russia, during August / September 2015. The 37 full papers and 14 short papers presented were carefully reviewed and selected from 87 submissions. The papers are organized in topical sections on parallel models, algorithms and programming methods; unconventional computing; cellular automata; distributed computing; special processors programming techniques; applications.
Book Synopsis Medicine Meets Virtual Reality 14 by : James D. Westwood
Download or read book Medicine Meets Virtual Reality 14 written by James D. Westwood and published by IOS Press. This book was released on 2006 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: The remarkable accomplishments of the IT industry and the Internet are trickling steadily into healthcare. This series provides more effective healthcare at a lower overall cost, driven by cheaper and better computers.
Book Synopsis Graphical Simulation of Deformable Models by : Jianping Cai
Download or read book Graphical Simulation of Deformable Models written by Jianping Cai and published by Springer. This book was released on 2016-12-20 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers dynamic simulation of deformable objects, which is one of the most challenging tasks in computer graphics and visualization. It focuses on the simulation of deformable models with anisotropic materials, one of the less common approaches in the existing research. Both physically-based and geometrically-based approaches are examined. The authors start with transversely isotropic materials for the simulation of deformable objects with fibrous structures. Next, they introduce a fiber-field incorporated corotational finite element model (CLFEM) that works directly with a constitutive model of transversely isotropic material. A smooth fiber-field is used to establish the local frames for each element. To introduce deformation simulation for orthotropic materials, an orthotropic deformation controlling frame-field is conceptualized and a frame construction tool is developed for users to define the desired material properties. The orthotropic frame-field is coupled with the CLFEM model to complete an orthotropic deformable model. Finally, the authors present an integrated real-time system for animation of skeletal characters with anisotropic tissues. To solve the problems of volume distortion and high computational costs, a strain-based PBD framework for skeletal animation is explained; natural secondary motion of soft tissues is another benefit. The book is written for those researchers who would like to develop their own algorithms. The key mathematical and computational concepts are presented together with illustrations and working examples. It can also be used as a reference book for graduate students and senior undergraduates in the areas of computer graphics, computer animation, and virtual reality. Academics, researchers, and professionals will find this to be an exceptional resource.
Book Synopsis Medicine Meets Virtual Reality 12 by : James D. Westwood
Download or read book Medicine Meets Virtual Reality 12 written by James D. Westwood and published by IOS Press. This book was released on 2004 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Prototype Virtual Reality System for Preoperative Planning of Neuro-Endovascular Interventions -- Validation of Soft Tissue Properties in Surgical Simulation with Haptic Feedback -- Comparison of CAVE and HM for Visual Stimulation in Postural Control Research -- Virtual Vision Loss Simulator -- Reaction-Time Measurement and Real-Tune Data Acquisition for Neuroscientific Experiments in Virtual Environments -- A Preliminary Study of Presence inVirtual Reality Training Simulation for Medical Emergencies -- An Ali System with Intuitive User Interface for Manipulation and Visualization of 3D Medical Data -- A Haptic Surgical Simulator for the Continuous Curvilinear Capsulorhexis Procedure During Cataract Surgery -- Haptic Rendering of Tissue Cutting with Scissors -- Increasing face validity of a vascular interventional training system -- An Endoscopic Sinus Surgery Training System for Assessment of Surgical Skill -- Acquiring Laparoscopic Manipulative Skills: A Virtual Tissue Dissection Training Module -- Novel Force Resolver Designs for a Haptic Surgery Simulator -- Author Index
