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Estimating the Relative Stiffness between a Hepatic Lesion and the Liver Parenchyma through Biomechanical Simulations of the Breathing Process

S. Martínez-Sanchis, M. J. Rupérez, E. Nadal, E. Pareja, S. Brugger, D. Borzacchiello, R. López-Andújar, C. Monserrat
2018 Mathematical Problems in Engineering  
Finally, the relative stiffness of the tumour with respect to the liver parenchyma is calculated by means of a Genetic Algorithm, which does a blind search of this parameter.  ...  In this paper, a method to in vivo estimate the relative stiffness between a hepatic lesion and the liver parenchyma is presented.  ...  Acknowledgments This work has been funded by the Spanish Ministry of Economy and Competitiveness (MINECO) through research projects DPI2013-40859-R and TIN2014-52033-R, both also supported by European  ... 
doi:10.1155/2018/5317324 fatcat:i5mcvc4fkfd3tctqbl7nxelkl4

Towards the Virtual Physiological Human [article]

Nadia Magnenat-Thalmann, Benjamin Gilles, Hervé Delingette, Andrea Giachetti, Marco Agus
2007 Eurographics State of the Art Reports  
The objective of this tutorial is to train students and researchers in the various domains involving the modelling and simulation of the human body for medical purposes.  ...  Examples will be given in the musculoskeletal, cardiac and neurological domains. All speakers are partners of the EU project "3D Anatomical Human" led by MIRALab - University of Geneva.  ...  By linearizing equation 4, the stiffness parameter can be identified with the stiffness of a linear elastic model.  ... 
doi:10.2312/egt.20071062 fatcat:iyybqfp4nnadhfkaeagp6qr63q

Predictive Models with Patient Specific Material Properties for the Biomechanical Behavior of Ascending Thoracic Aneurysms

Olfa Trabelsi, Ambroise Duprey, Jean-Pierre Favre, Stéphane Avril
2015 Annals of Biomedical Engineering  
The identification is based on the simultaneous minimization of two cost functions, which define the difference between model predictions and gated CT measurements of the aneurysm volume at respectively  ...  Rupture risk indexes were estimated and compared, 2 showing promising results of the patient-specific identification method based on gated CT.  ...  ., and López-Andújar, R. Estimation of the elastic parameters of human liver biomechanical models by means of medical images and evolutionary computation. Comput.  ... 
doi:10.1007/s10439-015-1374-8 pmid:26178871 fatcat:zlfgizt3grd57ipdj2ylctx4n4

Towards a unified approach in the modeling of fibrosis: A review with research perspectives

Martine Ben Amar, Carlo Bianca
2016 Physics of Life Reviews  
Specifically by means of a critical analysis of the different models that have been proposed in the mathematical, computational and physical biology, from molecular to tissue scales, a multiscale approach  ...  The comprehension and the related modeling of the different mechanisms that trigger fibrosis is a challenge of many researchers that work in the field of medicine and biology.  ...  In [113] an agent-based model of liver tissue has been developed in order to computationally examine the consequence of liver inflammation.  ... 
doi:10.1016/j.plrev.2016.03.005 pmid:27079617 fatcat:xwnwacktz5hfhlzphrhurnridq

Deformable Medical Image Registration: A Survey

A. Sotiras, C. Davatzikos, N. Paragios
2013 IEEE Transactions on Medical Imaging  
Deformable image registration is a fundamental task in medical image processing.  ...  Additional emphasis has been given to techniques applied to medical images. In order to study image registration methods in depth, their main components are identified and studied independently.  ...  In medical image registration, the computation of the derivative information can be computationally demanding because of the great dimensionality of both the data and the search space.  ... 
doi:10.1109/tmi.2013.2265603 pmid:23739795 pmcid:PMC3745275 fatcat:svbac4wihzhylmlntlodzrmple

Biomechanics as an Element of the Motion Clinimetry System [chapter]

Andrzej Jan Dyszkiewicz, Diana Hruby
2020 Recent Advances in Biomechanics [Working Title]  
The essence of biomechanics, understood as a science describing internal and external forces' vectors, which determine specific, dynamic motion models (especially for balance and gait), has been presented  ...  It is worth to add that only parametric estimation of a qualitative dysfunction profile makes it possible to reliably monitor treatment efficiency and forecast the level of health damage after its termination  ...  Another question is whether a principle that is obvious for the angular, vector, and time parameters used in biomechanics can be applied in the description of results of medical imaging, pathology, and  ... 
doi:10.5772/intechopen.92757 fatcat:snwmrocclvhxziyolakukq2fne

The potential of statistical shape modelling for geometric morphometric analysis of human teeth in archaeological research

Christopher Woods, Christianne Fernee, Martin Browne, Sonia Zakrzewski, Alexander Dickinson, Alistair Robert Evans
2017 PLoS ONE  
OPEN ACCESS Citation: Woods C, Fernee C, Browne M, Zakrzewski S, Dickinson A (2017) The potential of statistical shape modelling for geometric morphometric analysis of human teeth in archaeological research  ...  Finally, the technique's application was demonstrated for inter-sample comparison through analysis of the principal component (PC) weights.  ...  Acknowledgments The authors acknowledge the μ-VIS centre ( Finally, the work required to generate and validate an anatomic statistical shape and material model is not trivial, and contains extensive ethical  ... 
doi:10.1371/journal.pone.0186754 pmid:29216199 pmcid:PMC5720725 fatcat:nlacz5rvkbc7tbfs7zbth5whja

The Cardiac Physiome: perspectives for the future

James Bassingthwaighte, Peter Hunter, Denis Noble
2009 Experimental Physiology  
by the IUPS Physiome Project to help with the understanding of complex physiological systems through the use of biophysically based mathematical models that link genes to organisms.  ...  It would require unbelievably large numbers of such computers (one estimate is 10 27 ; Noble, 2006) to analyse just a single cell in this degree of detail.  ...  Livers, hearts, lungs and brains all exhibit internal heterogeneities; for example, blood flows vary with standard deviations of about 25% of the mean at any particular point in time within an intact healthy  ... 
doi:10.1113/expphysiol.2008.044099 pmid:19098089 pmcid:PMC2854146 fatcat:fe3t4ebx6zfttitxnlpmud2pvm

An efficient and scalable deformable model for virtual reality-based medical applications

Kup-Sze Choi, Hanqiu Sun, Pheng-Ann Heng
2004 Artificial Intelligence in Medicine  
Acknowledgements This work was supported by the Research Grants Council of the HKSAR (Nos. 4356/02E, CUHK 1/00C) and CUHK direct grant No. 4450002. The authors would like to thank Prof. J.C.Y.  ...  Cheng and Prof. K.M. Chan of the Department of Orthopaedics and Traumatolgy for their expertise in surgical procedures, and L. Bai for the assistance in processing the MRI datasets.  ...  [29] have proposed an evolutionary minimization algorithm to identify the parameters of a mass-spring cloth model by optimizing against the synthetic cloth animations or real cloth images.  ... 
doi:10.1016/j.artmed.2004.01.013 pmid:15350624 fatcat:cnpu3zpdqvgl7dh6n3x256oa7i

Force Modeling, Identification, and Feedback Control of Robot-Assisted Needle Insertion: A Survey of the Literature

Chongjun Yang, Yu Xie, Shuang Liu, Dong Sun
2018 Sensors  
Namely, the movement of the slave hand can be indirectly manipulated by handling the master hand with the help of visual position information.  ...  The successful use of robotic-assisted operation systems such as da Vinci and ZEUS has attracted considerable interest from the medical and engineering communities [7, 11] .  ...  Acknowledgments: We gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 61403320 and No. 51405236) and Natural Science Foundation of Guangdong Province  ... 
doi:10.3390/s18020561 pmid:29439539 pmcid:PMC5855056 fatcat:kdcc7cmr6fhodgwjxjyuq56xdq

Graphics, Vision, and Visualization in Medical Imaging: A State of the Art Report [article]

Norberto Ezquerra, Isabel Navazo, Tahia Infantes Morris, Eva Monclus
1999 Eurographics State of the Art Reports  
As the title of this paper suggests, one interesting result of this evolutionary process has been the fusion of traditionally disjointed yet highly interrelated areas: from computer vision and image processing  ...  The field of medical imaging has significantly changed over the years, becoming both an integral part of health care and an increasingly important area of research spanning many disciplines.  ...  Atlases and The Visible Human Perhaps one of the most notable recent achievements in visualization of 3D medical data is The Visible Human Project, an initiative organized and financed by The National  ... 
doi:10.2312/egst.19991067 fatcat:xb3sv64whrh4vj22a6caleffby

Firefly Algorithm in Biomedical and Health Care: Advances, Issues and Challenges

Janmenjoy Nayak, Bighnaraj Naik, Paidi Dinesh, Kanithi Vakula, Pandit Byomakesha Dash
2020 SN Computer Science  
Abundant complexities have been worked out with the assist of FA and its variants.  ...  Since the past decades, most of the nature inspired optimization algorithms (NIOA) have been developed and become admired due to their effectiveness for resolving a variety of complex problems of dissimilar  ...  [114] has introduced the computer-assisted model for identifying ominous and amiable liver tumors from CT images.  ... 
doi:10.1007/s42979-020-00320-x pmid:33063057 pmcid:PMC7519705 fatcat:weeltnpvnzbl5h25fiwtrbu7fm

Sexual Dimorphism of the Zebra Finch Syrinx Indicates Adaptation for High Fundamental Frequencies in Males

Tobias Riede, John H. Fisher, Franz Goller, M. Fabiana Kubke
2010 PLoS ONE  
The functional consequences of these differences were explored by denervating syringeal muscles.  ...  One of the bronchial half rings that position and tense the labia is larger in males, and the size and shape of the labia differ between males and females.  ...  The images are larger magnifications of aspects indicated by squares in B, C and D.  ... 
doi:10.1371/journal.pone.0011368 pmid:20614010 pmcid:PMC2894075 fatcat:5bz2a5ihhrbsda56qngpf7vf3e


2022 Biotechnologia Acta  
To analyze modern approaches to mathematical modeling of human respiratory and blood circulatory systems. Methods.  ...  One of them is the construction of models of the mechanics of respiration and blood circulation.  ...  Input data were obtained from clinical examination, in particular angiography, computed tomography and magnetic resonance imaging, as well as the data of medical diagnoses.  ... 
doi:10.15407/biotech15.01.023 doaj:3e94f7c5988e4faabd8f0b7964eeddc2 fatcat:xrkfaecryngrjob7imm4y5tp44

2019 Index IEEE Transactions on Biomedical Engineering Vol. 66

2019 IEEE Transactions on Biomedical Engineering  
., +, Assessment of Quadratic Nonlinear Cardiorespiratory Couplings During Tilt-Table Test by Means of Real Wavelet Biphase.  ...  Ultrasonic Microelastography to Assess Biomechanical Properties of the Cornea.  ... 
doi:10.1109/tbme.2020.2964087 fatcat:mdfzsmdahnao5ccnuj232hycsm
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