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Overweight and obesity in childhood can cause some orthopedic problems and these problems may deteriorate as the age increases. Gait changes may reflect these problems. Currently there are very few studies on changes in gait characteristics of overweight and obese (OWO) children with different age. The purpose of this study was to investigate the gait changes of OWO children with different age. Gait...
Angiogenesis, the formation of de novo blood vessels, has been implicated in many human diseases, including cancer, diabetes, and in recent years, neurodegenerative diseases. Study of the formation of microvasculature, therefore, has important implications in diagnosis and treatment of diseases. This paper describes how we combine a CPU-based Cellular Potts model of sprouting angiogenesis in three...
The localization of eye centers technique is used in several applications. In this paper, we combine the face shape model to eye center location method to obtaining robustness in eye center localization from a low-resolution image. We make use of shape regression approach and combine it to the eye-center localization using isophote curvature features which has shown its advantage from previous work...
Two clustering combined method was proposed to deal with functional magnetic resonance imaging. This method can discover different network in a single run. We applied the method to resting-state data, and the default mode network was discovered, which was consistent with the independent component analysis result. The problem on the detection of brain functional connectivity network was discussed....
An automated preprocessing method to improve the performance of brain segmentation with Brain Extraction Tools (BET) is proposed in this paper. It is an automatic decision method of optimal cutting plane of non-brain tissues. This method can be easily integrated into BET and can significantly improve the brain segmentation result for troublesome images. Some clinical 3D T1-weighted MRI data of glioma...
Velocity of micro vessels is an important indicator that reflects the microcirculatory state. Video images are analyzed quantitatively and semi-quantitatively using time-consuming and semi-automated techniques for blood flow measurement. Current technology is limited by poor image stability, low resolution and imaging artifacts. In light of these difficulties, many researchers have used spatiotemporal...
We describe a novel appearance model with optimal combined features to produce the accurate vessel segmentation. It starts with investigating a set of multi-scale vessel features, followed by a weighed approach to optimally combine different features. Then the optimally combined features advantage the appearance model to reveal more detailed information of vessel. The novelty of the work lies in the...
The inverse problem of Magnetoacoustic Tomography (MAT) is often ill-posed in the sense that noise in the data may give rise to significant errors in the process of reconstruction. It is critical and significant to develop a feasible and effective method to deal with this ill-posed problem. In this paper, we introduce a regularization method combining Tikhonov filter function, unbiased predictive...
The brain tissue conductivity not only plays key role in the analysis of electroencephalography (EEG) and magnetoencephalography (MEG), but also is one key factor of diagnosing brain functional change in time. Diffusion tensor imaging (DTI) is a non-invasive imaging method, with high spatial-resolution. The importance of conductivity imaging of brain inner tissue is remarkable. This paper summarized...
Neurovascular coupling (NVC) is one of the essential mechanisms in brain activities. Both cerebral blood flow (CBF) and electrocorticography (ECoG) have been serving as the most important indicators of neurovascular coupling in system level. In this study, we developed an integrated device to realize laser speckle contrast imaging (LSCI) and ECoG recording simultaneously in rat's brain. Using this...
Hyperspectral imaging technology has been applied in histology and cytology for a long time. Image quality and spectra are usually affected by light source, optics and sensors in hyperspectral imaging systems. This paper proposes a continuum removal algorithm and radiometric correction preprocessing method to eliminate these influences. The algorithm removes the continuum of image after the spectra...
The aim of the study was to investigate the characteristics of Zaocys dhumnades cytochrome b (cyt b) gene. Bioinformatics technology was used to design primers, sequence and blast, in conjunction with PCR technology. A kind of Zaocys dhumnades DNA test kit was developed, and it's indexes including specificity, sensitivity and stability were evaluated. Results by kit method were in accordance with...
In this paper, we propose a new, Genetically Optimized Neural Network (GONN) algorithm, for solving classification problems. We evolve a neural network genetically to optimize its structure for classification. We introduce new crossover and mutation operations which differ from a normal Genetic programming life-cycle to reduce the destructive nature of these operations. We use the GONN algorithm to...
With the development of computer technology, communication technology, and multimedia technology, more and more attention has been paid to remote medical monitoring platform. For the high cost and mobility issues in pregnancy checkups, a kind of remote monitoring platform for uterine contraction pressure based on Virtual Instrument is proposed in this article. Firstly, the article analyzes the importance...
Compared with conventional therapy techniques, sonodynamic therapy of atherosclerosis can achieve non-invasive radical treatment. Currently the treatment parameters are mostly determined empirically. This paper is to describe the establishment of ultrasonic propagation simulation model of atherosclerotic biological tissues by identifying and extracting the medical image feature, together with the...
The experiments of the open-ended coaxial sensor used in the liquid dielectric properties testing based on the transverse electromagnetic (TEM) model are presented. In this approach, the input admittance at the coaxial opening end is approximated as a polynomial of the complex wave number in the liquid under test (LUT) that terminates the sensor, which gives advantageous to de-embedding the unknown...
The ultra-precision positioning stages are generally used in high precision positioning engineering fields, such as in biomedical genetic engineering, precision optical engineering, MEMS manufacturing and other fields. In this paper, an ultra-precision positioning stage is introduced. The flexure hinge is treated as a three nodes element with varying cross-section, in which each node has three degrees...
Visual prosthesis is an implantable microelectronic system which collects and processes external image information to stimulate the remaining neural tissue of the visual pathway of the blind, helping them restore some functional vision. This paper focuses on an optic nerve visual prosthesis using penetrating micro-electrode array to stimulate optic nerve fibers. One challenge that visual prosthesis...
Electroencephalography (EEG) is the recording of electrical activities generated by nerve cells in the cerebral cortex. As the only non-invasive method for measuring brain activities from human scalp, it has been widely used in the area of medical diagnosis, neuroscience research, commercial application, etc. Most of the existing EEG acquisition systems, which are usually comprised of analog switches,...
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