Automatic P-wave analysis of patients prone to atrial fibrillation.

abstract：:The aim of the study is to establish the validity of the use of the electrical impedance technique for estimating local oedema in extremities through comparison with computed-tomography (CT) analysis. Eight healthy women (group 1) and nine women with unilateral leg oedema following chronic lymphatic obstruction (group...

journal_title：Medical & biological engineering & computing

authors： Watanabe R,Kotoura H,Morishita Y

更新日期：1998-01-01 00:00:00

abstract：:Therapeutic hypothermia is a treatment method to reduce brain injuries after stroke, especially for cerebral ischemia. This study investigates in the temperature distribution of the head within selective brain cooling (SBC). Anatomically accurate geometries based on CT images of head and neck regions are used to devel...

journal_title：Medical & biological engineering & computing

authors： Yin L,Jiang H,Zhao W,Li H

更新日期：2019-06-01 00:00:00

abstract：:The Delft Shoulder and Elbow Model (DSEM), a musculoskeletal model of the shoulder and elbow has been extensively developed since its introduction in 1994. Extensions cover both model structures and anatomical data focusing on the addition of an elbow part and muscle architecture parameters. The model was also extende...

journal_title：Medical & biological engineering & computing

authors： Nikooyan AA,Veeger HE,Chadwick EK,Praagman M,Helm FC

更新日期：2011-12-01 00:00:00

abstract：:Variations in the amplitude and period of essential and Parkinsonian tremors were studied. It was found that the variations in frequency (or period) were mostly similar to the white noise, with the standard deviation typically less than 10% of the mean, whereas the variations in amplitude were much larger, with standa...

journal_title：Medical & biological engineering & computing

authors： Gao JB

更新日期：2004-05-01 00:00:00

abstract：:This study describes a new method for analyzing microcirculatory videos. It introduces algorithms for quantitative assessment of vessel length, diameter, the functional microcirculatory density distribution and red blood-cell (RBC) velocity in individual vessels as well as its distribution. The technique was validated...

journal_title：Medical & biological engineering & computing

authors： Dobbe JG,Streekstra GJ,Atasever B,van Zijderveld R,Ince C

更新日期：2008-07-01 00:00:00

abstract：:In cell-based research, the process of visually monitoring cells generates large image datasets that need to be evaluated for quantifiable information in order to track the effectiveness of treatments in vitro. With the traditional, end-point assay-based approach being error-prone, and existing computational approache...

journal_title：Medical & biological engineering & computing

authors： Mbiki S,McClendon J,Alexander-Bryant A,Gilmore J

更新日期：2020-07-01 00:00:00

abstract：:This work addresses the problem of estimating the conduction velocity (CV) of single motor unit (MU) action potentials from surface EMG signals detected with linear electrode arrays during voluntary muscle contractions. In ideal conditions, that is without shape or scale changes of the propagating signals and with add...

journal_title：Medical & biological engineering & computing

authors： Farina D,Muhammad W,Fortunato E,Meste O,Merletti R,Rix H

更新日期：2001-03-01 00:00:00

abstract：:A new system capable of generating static and dynamic random-element stereograms is designed and implemented. The stereogram is composed of a rectangle that can be varied in size, element density, orientation, and horizontal and vertical disparities, and can be swept at several velocities. The system is based on an in...

journal_title：Medical & biological engineering & computing

authors： Gonzalez F,Krause F

更新日期：1994-07-01 00:00:00

abstract：:The boundary-element method (BEM) is widely used for electrocardiogram (ECG) simulation. Its major disadvantage is its perceived inability to deal with the anisotropic electric conductivity of the myocardial interstitium, which led researchers to represent only intracellular anisotropy or neglect anisotropy altogether...

journal_title：Medical & biological engineering & computing

authors： Potse M,Dubé B,Vinet A

更新日期：2009-07-01 00:00:00

abstract：:The objective of the present work was to develop automated methods for the compressed tracheal breathing sound analysis. Overnight tracheal breathing sound was recorded from ten apnoea patients. From each patient, three different types of tracheal sound deflection pattern, each of 10 min duration, were visually scored...

journal_title：Medical & biological engineering & computing

authors： Kulkas A,Rauhala E,Huupponen E,Virkkala J,Tenhunen M,Saastamoinen A,Himanen SL

更新日期：2008-04-01 00:00:00

abstract：:Divided attention is defined as focusing on different tasks at once, and this is described as one of the biggest problems of today's society. Default examinations for understanding attention are questionnaires or physiological signals, like evoked potentials and electroencephalography. Physiological records were obtai...

journal_title：Medical & biological engineering & computing

authors： Batbat T,Güven A,Dolu N

更新日期：2019-09-01 00:00:00

abstract：:In acute experiments the sciatic nerve of the rat is electrically stimulated to induce fatigue in the medial Gastrocnemius muscle. Fatigue tests are carried out using intermittent stimulation of different compartments (sequential) or a single compartment (synchronous) of the sciatic nerve. The activation of different ...

journal_title：Medical & biological engineering & computing

authors： Thomsen M,Veltink PH

更新日期：1997-05-01 00:00:00

abstract：:The scapholunate ligament stabilizes the scaphoid and lunate of the proximal row in the wrist which allows for proper force transmission with the radius and ulna. Damage to this structure degenerates into arthritis and disability. Controversy exists over the best technique to restore function and reduce pain. A three-...

journal_title：Medical & biological engineering & computing

authors： Wayne JS,Tremols EJ

更新日期：2019-07-01 00:00:00

abstract：:Generation of a large number of cells belonging to the cardiac pacemaker system would constitute an important step towards their utilization as a biological cardiac pacemaker system. The aim of the present study was to identify factors, which might induce transformation of a heterogenous population of fetal cardiomyoc...

journal_title：Medical & biological engineering & computing

authors： Ruhparwar A,Er F,Martin U,Radke K,Gruh I,Niehaus M,Karck M,Haverich A,Hoppe UC

更新日期：2007-02-01 00:00:00

abstract：:Infants born at 35-37 weeks' gestational age (GA) are at higher risk for a range of pathological conditions and poorer neurodevelopmental outcomes. However, mechanisms responsible are not fully understood. The purpose of this paper is to use traditional and novel techniques to assess newborn autonomic development as a...

journal_title：Medical & biological engineering & computing

authors： Lucchini M,Burtchen N,Fifer WP,Signorini MG

更新日期：2019-01-01 00:00:00

abstract：:Segmentation and classification of low-quality and noisy ultrasound images is challenging task. In this paper, a new approach is proposed for robust segmentation and classification of carotid artery ultrasound images and consequently, detecting cerebrovascular disease. The proposed technique consists of two phases, in...

journal_title：Medical & biological engineering & computing

authors： Chaudhry A,Hassan M,Khan A

更新日期：2016-12-01 00:00:00

abstract：:Stiffness of the arterial wall and atherosclerotic plaque components is a determinant of the stress field within plaques, which has been suggested to be an indicator of plaque vulnerability. The diversity and inhomogeneous structure of atherosclerotic lesions complicate the characterization of plaque components. In th...

journal_title：Medical & biological engineering & computing

authors： Rezvani-Sharif A,Tafazzoli-Shadpour M,Avolio A

更新日期：2019-03-01 00:00:00

abstract：:The objective of this study was to systematically assess the effects of pharyngeal anatomical details on breathing resistance and acoustic characteristics by means of computational modeling. A physiologically realistic nose-throat airway was reconstructed from medical images. Individual airway anatomy such as the uvul...

journal_title：Medical & biological engineering & computing

authors： Xi J,Si X,Kim J,Su G,Dong H

更新日期：2014-07-01 00:00:00

abstract：:The vagus nerves convey both afferent and efferent information about autonomic activity related to cardiovascular functions. Those functions have been shown to change due to epileptic seizures, which suggests that ictal events might be detected via the vagus electroneurogram (VENG). In this study, we characterize the ...

journal_title：Medical & biological engineering & computing

authors： Harreby KR,Sevcencu C,Struijk JJ

更新日期：2011-09-01 00:00:00

abstract：:The aim of this study was to analyse the trends of the first three power spectral moments of the mechanomyogram (MMG) signal recorded by a microphone (MMG(MIC)) and an accelerometer (MMG(ACC)) during sustained contractions. MMG signals were recorded from the biceps brachii muscle in 14 healthy male subjects during a 3...

journal_title：Medical & biological engineering & computing

authors： Madeleine P,Ge HY,Jaskólska A,Farina D,Jaskólski A,Arendt-Nielsen L

更新日期：2006-04-01 00:00:00

abstract：:An automatic power-generating system (AGS) which converts kinetic energy into electric energy for quartz watches was tested as a power source for implantable cardiac pacemakers. An automatic power-generating mechanism and a capacitor (0.33 F) were removed from a quartz watch (SEIKO) and encapsulated in a polyvinyl cas...

journal_title：Medical & biological engineering & computing

authors： Goto H,Sugiura T,Harada Y,Kazui T

更新日期：1999-05-01 00:00:00

abstract：:The role of alveolar macrophages in the process of the human lung clearance is summarised. Three patterns of alveolar macrophage (AM) displacement on the surface of alveolus are distinguished depending on the loading of the surface with insoluble deposits, i.e. directional, directional with small stochastic noise and ...

journal_title：Medical & biological engineering & computing

authors： Gradoń L,Podgórski A

更新日期：1995-07-01 00:00:00

abstract：:Sperm morphology, as an indicator of fertility, is a critical tool in semen analysis. In this study, a smartphone-based hybrid system that fully automates the sperm morphological analysis is introduced with the aim of eliminating unwanted human factors. Proposed hybrid system consists of two progressive steps: automat...

journal_title：Medical & biological engineering & computing

authors： Ilhan HO,Sigirci IO,Serbes G,Aydin N

更新日期：2020-05-01 00:00:00

abstract：:We present a new, automatic, correlation-based method for measuring the duration of motor unit action potentials (MUAPs). The method seeks to replicate the way an expert elctromyographer uses his or her eyes, calculating the start and end of the MUAP waveform on the basis of the degree of similarity of non-excluded di...

journal_title：Medical & biological engineering & computing

authors： Rodríguez Carreño I,Malanda A,Gila Useros L,Gurtubay IG,Navallas J,Rodríguez-Falces J

更新日期：2020-03-01 00:00:00

abstract：:In total hip arthroplasty, determining the impingement free range of motion requirement is a complex task. This is because in the native hip, motion is restricted by both impingement as well as soft tissue restraint. The aim of this study is to determine a range of motion benchmark which can identify motions which are...

journal_title：Medical & biological engineering & computing

authors： Turley GA,Williams MA,Wellings RM,Griffin DR

更新日期：2013-04-01 00:00:00

abstract：:Using images from the Image Database Consortium and Image Database Resource Initiative (LIDC-IDRI), we developed a methodology for classifying lung nodules. The proposed methodology uses image processing and pattern recognition techniques. To classify volumes of interest into nodules and non-nodules, we used shape mea...

journal_title：Medical & biological engineering & computing

authors： Filho AOC,Silva AC,de Paiva AC,Nunes RA,Gattass M

更新日期：2017-08-01 00:00:00

abstract：:A computational model of the fluid dynamics of intraventricular flow was used to investigate the importance of the effects of flow disturbances existing within the left ventricle (LV) at the onset of diastole on a diastolic flow field. The simulation started with a quiescent flow state; it continued for a number of ca...

journal_title：Medical & biological engineering & computing

authors： Nakamura M,Wada S,Mikami T,Kitabatake A,Karino T,Yamaguchi T

更新日期：2004-07-01 00:00:00

abstract：:The complexity of the monitored data available in modern intensive care units suggests that they may be best processed, for presentation to medical staff, by expert system techniques. However, standard expert system shells are ill-fitted to either the basic sequential monitoring tasks of data acquisition and storage, ...

journal_title：Medical & biological engineering & computing

authors： Taboada JA,Arcay B,Arias JE

更新日期：1997-09-01 00:00:00

abstract：:The paper describes a method of quantifying Duchenne muscular dystrophy which is examiner independent and uses surface electromyographic signals (EMG). A standardised protocol is proposed. Spectral parameters are first computed from digitised EMG, then a polynomial model is deduced from the evolution of each parameter...

journal_title：Medical & biological engineering & computing

authors： Priez A,Duchene J,Goubel F

更新日期：1992-05-01 00:00:00

abstract：:In this paper, a method for apnea bradycardia detection in preterm infants is presented based on coupled hidden semi Markov model (CHSMM). CHSMM is a generalization of hidden Markov models (HMM) used for modeling mutual interactions among different observations of a stochastic process through using finite number of hi...

journal_title：Medical & biological engineering & computing

authors： Montazeri Ghahjaverestan N,Shamsollahi MB,Ge D,Beuchée A,Hernández AI

更新日期：2021-01-01 00:00:00