504 resources related to Pelvis
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AMC2020 is the 16th in a series of biennial international workshops on Advanced Motion Control which aims to bring together researchers from both academia and industry and to promote omnipresent motion control technologies and applications.
The 2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC 2020) will be held in Metro Toronto Convention Centre (MTCC), Toronto, Ontario, Canada. SMC 2020 is the flagship conference of the IEEE Systems, Man, and Cybernetics Society. It provides an international forum for researchers and practitioners to report most recent innovations and developments, summarize state-of-the-art, and exchange ideas and advances in all aspects of systems science and engineering, human machine systems, and cybernetics. Advances in these fields have increasing importance in the creation of intelligent environments involving technologies interacting with humans to provide an enriching experience and thereby improve quality of life. Papers related to the conference theme are solicited, including theories, methodologies, and emerging applications. Contributions to theory and practice, including but not limited to the following technical areas, are invited.
The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore
The conference is the primary forum for cross-industry and multidisciplinary research in automation. Its goal is to provide a broad coverage and dissemination of foundational research in automation among researchers, academics, and practitioners.
The IEEE International Symposium on Biomedical Imaging (ISBI) is the premier forum for the presentation of technological advances in theoretical and applied biomedical imaging.ISBI 2019 will be the 16th meeting in this series. The previous meetings have played a leading role in facilitating interaction between researchers in medical and biological imaging. The 2019 meeting will continue this tradition of fostering cross fertilization among different imaging communities and contributing to an integrative approach to biomedical imaging across all scales of observation.
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
IEEE Computer Graphics and Applications (CG&A) bridges the theory and practice of computer graphics. From specific algorithms to full system implementations, CG&A offers a strong combination of peer-reviewed feature articles and refereed departments, including news and product announcements. Special Applications sidebars relate research stories to commercial development. Cover stories focus on creative applications of the technology by an artist or ...
Both general and technical articles on current technologies and methods used in biomedical and clinical engineering; societal implications of medical technologies; current news items; book reviews; patent descriptions; and correspondence. Special interest departments, students, law, clinical engineering, ethics, new products, society news, historical features and government.
Research on the fundamental contributions and the mathematics behind information forensics, information seurity, surveillance, and systems applications that incorporate these features.
Telemedicine, teleradiology, telepathology, telemonitoring, telediagnostics, 3D animations in health care, health information networks, clinical information systems, virtual reality applications in medicine, broadband technologies, and global information infrastructure design for health care.
2011 1st Middle East Conference on Biomedical Engineering, 2011
Sit to stand (STS) is one of the most important activities of daily living that is shown to be affected in low back pain (LBP) patients. It requires a fundamental coordination action among all segments (DOFs) of the body in order to control important performance variables such as body's center of mass (CM) within base of support (BOS). In this ...
2017 13th IASTED International Conference on Biomedical Engineering (BioMed), 2017
Gait analysis gets more accessible, accurate, and simple to use as technology advances. The goal of this paper is to explore the accuracy of an advanced optical motion analysis system, where marker clusters mounted on rigid shapes are used to track the movement of body segments. It aims to examine the magnitude and nature of variation of the angular gait ...
2016 International Conference on Systems in Medicine and Biology (ICSMB), 2016
Implant-induced bone remodeling has been identified as a potential reason behind aseptic loosening of uncemented acetabular cups. Using three- dimensional Finite Element models of intact and implanted pelvis, in combination with bone remodeling algorithm, the present study aims at gaining an insight into the evolutionary bone adaptation around a press-fit uncemented acetabular component. Eight static load cases of normal walking ...
2013 IEEE 10th International Symposium on Biomedical Imaging, 2013
An automated atlas-based pelvimetry framework is proposed using hybrid registration, with the aim of examining the relationship between pelvic inlet area and the difficulty of laparoscopic operations for prostate cancer. The atlas is built with a 3D pelvis CT scan with a corresponding manual segmentation of pelvic inlet contour. The transformation between the atlas image and the target images is ...
2006 SICE-ICASE International Joint Conference, 2006
We are developing a new type of human-sized BWR (biped walking robot) driven by the closed-chain type of joint actuator. Each leg of the robot is composed of 6 joints, arms have 12 joints, and head has 4 joints. In all, a 29 degree- of-freedom BWR is under developing. The weight of the robot is 75 (Kg) with 166cm tall, ...
Sit to stand (STS) is one of the most important activities of daily living that is shown to be affected in low back pain (LBP) patients. It requires a fundamental coordination action among all segments (DOFs) of the body in order to control important performance variables such as body's center of mass (CM) within base of support (BOS). In this study, possible differences in joint coordination and variability patterns between chronic LBP and healthy control subjects were investigated during STS task. Eleven adults with nonspecific chronic LBP and 12 healthy controls were recruited in the study. The participants performed the task in 3 exerimental conditions including: rigid surface, open eyes (RO), rigid surface, close eyes (RC) and narrow surface, close eyes (NC). The variability of 7 segment motions and also CM positions were calculated across 15 trials in these conditions. A mixed model analysis of variance showed that both LBP and control groups could coordinate their DOFs in order to stablilize body CM position, although elemental variability (segment motion variability) was totally higher in LBPs than controls, especially trunk and head segment variability. These findings confirm the existence of fundamental coordinatiom strategies in deep lying structures of control systems which help the system maintain its functions despite possible impaiments in elements.
Gait analysis gets more accessible, accurate, and simple to use as technology advances. The goal of this paper is to explore the accuracy of an advanced optical motion analysis system, where marker clusters mounted on rigid shapes are used to track the movement of body segments. It aims to examine the magnitude and nature of variation of the angular gait parameters of the lower extremities, caused by inaccuracy of the anatomical landmark placement. These landmarks are defined in the local coordinate systems of the rigid clusters through a calibration procedure, eliminating the need for skin-mounted markers. The used protocol makes it possible to evaluate the exact same motion using different calibrations, eliminating any other possible source for the variation of results. As a conclusion, a good estimation for the accuracy of the usual angular parameters in gait analysis is given. Mean anatomical landmark placement variation was found to be around 8.5 mm. The biggest standard deviations were found in the left hip flexion angle, with an average of 4.38°.
Implant-induced bone remodeling has been identified as a potential reason behind aseptic loosening of uncemented acetabular cups. Using three- dimensional Finite Element models of intact and implanted pelvis, in combination with bone remodeling algorithm, the present study aims at gaining an insight into the evolutionary bone adaptation around a press-fit uncemented acetabular component. Eight static load cases of normal walking cycle, modeled by 21 muscle forces and hip joint reaction force, were considered in the present study in order to investigate deviation in load transfer due to implantation and peri-acetabular bone adaptation. Based on the results of the present study, a press-fit acetabular component was found to increase load transfer through acetabular cortex. Consequently, predominant bone apposition was observed within the acetabular peripheral cancellous bone. However, a reduction in the density of cancellous bone near the acetabular pole was also observed.
An automated atlas-based pelvimetry framework is proposed using hybrid registration, with the aim of examining the relationship between pelvic inlet area and the difficulty of laparoscopic operations for prostate cancer. The atlas is built with a 3D pelvis CT scan with a corresponding manual segmentation of pelvic inlet contour. The transformation between the atlas image and the target images is automatically built by applying a hybrid registration incorporating affine registraion with a statistical deformation model constrained non-rigid registration. The inlet contour from the atlas can be propagated to the target individual to estimate the inlet area. Then, Eigenmode analysis is introduced to define the inlet plane by the first two principal axes of the transformed points and all points are projected onto this plane. A triangulation of the planar points is used to calculate the pelvic inlet area. The result shows that our method works well for automated pelvic inlet area measurement with average relative error 2.82% ± 0.0167 compared with the gold standard defined by an expert.
We are developing a new type of human-sized BWR (biped walking robot) driven by the closed-chain type of joint actuator. Each leg of the robot is composed of 6 joints, arms have 12 joints, and head has 4 joints. In all, a 29 degree- of-freedom BWR is under developing. The weight of the robot is 75 (Kg) with 166cm tall, but was designed to be capable of supporting 120Kg. The BWR was designed to walk autonomously such that all leg joints are actuated by 150W DC motors/drivers and DC batteries and controllers which are boarded. An analysis on the four-bar-link mechanism applied to the joint actuator and on the structure of the BWR capable of supporting heavy load is shown. The design specification of the actuating motor for the BWR is analyzed through the torque analysis and experiment on the four-bar-link actuator. A walking performance is shown with heavy load
A pelvic belt is a tool of first aid for the pelvic fracture patients. This belt can stabilize the unstable pelvis and control bleeding from the arteries and organs inside the pelvis. The purpose of this study is to develop an evaluation system for the pelvic belt. Especially we evaluate the press around the greater trochanter under the pelvic belt. It has been reported that a pressure by tightening the belt increases the risk of tissue damage with pelvic belt. A mechanism which decreases the pressure of the tightening is required. We performed experiments that recorded pressure around the greater trochanter of right and left when subjects turned body. As a result, we confirmed that the pressure of the ipsilateral greater trochanter of the direction tends to increase with the same direction of subject turned.
Kinematic characteristics and vault features of Tsuhakara3/1 were studied to provide theoretical basis for vault training. Methods: The images of Tsuhakara3/1 in Yang Hak Seon and Feng Zhe's Vault Finals of Asian Games in 2010 were analyzed to get relevant kinematic data. Results and Conclusions: The horizontal velocity of Feng Zhe was higher while touching the board than Yang Hak Seon's and the loss of horizontal velocity after stepping on to the springboard was less than Yang Hak Seon's. The first flight time of Yang Hak Seon was longer than Feng Zhe while his supporting time was shorter than Feng Zhe, pushing the vaulting horse swiftly and powerfully; however, Feng Zhe supported the vaulting horse more positively than Yang Hak Seon's, he swung legs by a larger margin, and his position of leaving from the vaulting horse was closer to vertical position than Yang Hak Seon's. The height and the distance of second flight for Feng Zhe were larger than Yang Hak Seon's, but his body was twisted more slowly, and the body was being twisted while landing; however, Yang Hak Seon finished twisting before landing, his ability of landing and controlling posture were better than Feng Zhe. Feng Zhe twisted his body slowly during second flight and the body was being twisted while landing, which mainly caused the second place.
Three-dimensional visualization is opening new worlds for more precise diagnosis and higher-quality treatment. 3D reconstruction from medical images is widely used in diagnosis and medical research. This paper focuses on 3D surface reconstruction of the pelvis from CT images on a personal computer. We measure and analyze large numbers of interrelated parameters in order to help doctor in diagnosis, operation planning and the actual surgery
The primary functions of the kidney are: (i) to get rid of the body waste materials that are either ingested or produced by metabolism, and (ii) to control the volume and composition of the body fluids. Herein, we provide a noninvasive methodology to assess physiological function of the kidneys. For this purpose, we analyze the renograms with 2-compartmental modelling of the kidney-renal outflow system, and therefrom compute the amount of flow of renal radionuclide into and out of the renal pelvis compartment. The derived information of uptake (k/A) and washout (e(beta/2V<sub>2</sub>)t sinhAt) rates can be of considerable use. The paper provides a number of case studies for the verification of the derived system governing equations against clinical renograms
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