Exactness of source analysis of biomagnetic signals of epileptiform spikes by the method of spatial filtering: a computer simulation.

abstract：:A bicuspid aortic valve (BAV) is a congenital cardiac disorder where the valve consists of only two cusps instead of three, as in a normal tricuspid valve (TAV). Although 97 % of BAVs include asymmetric cusps, little or no prior studies have investigated the blood flow through a three-dimensional BAV and root. The aim...

journal_title：Medical & biological engineering & computing

authors： Marom G,Kim HS,Rosenfeld M,Raanani E,Haj-Ali R

更新日期：2013-08-01 00:00:00

abstract：:Quantitative sensory testing (QST) can provide useful information about the underlying mechanisms involved in chronic pain. However, currently available devices typically employed suffer from operator-dependent effects, or are too cumbersome for routine clinical care. This paper presents the design and initial validat...

journal_title：Medical & biological engineering & computing

authors： Harte SE,Mitra M,Ichesco EA,Halvorson ME,Clauw DJ,Shih AJ,Kruger GH

更新日期：2013-06-01 00:00:00

abstract：:Two ways of rate control for diaphragm pacing are proposed. One is rate control using only the patients' body temperature (method I). The other is rate control by both the patients' heart rate and body temperature (method II). To test the effectiveness of these methods, a diaphragm pacemaker which can be controlled by...

journal_title：Medical & biological engineering & computing

authors： Kimura M,Sugiura T,Fukui Y,Kimura T,Harada Y

更新日期：1992-03-01 00:00:00

abstract：:The flow mechanisms that play a role on aerosol deposition were identified and presented in a companion paper (Timothy et al. in Med Biol Eng Comput. doi: 10.1007/s11517-015-1407-3 , 2015). In the current paper, the effects of invasive conventional mechanical ventilation waveforms and endotracheal tube (ETT) on the ae...

journal_title：Medical & biological engineering & computing

authors： Alzahrany M,Van Rhein T,Banerjee A,Salzman G

更新日期：2016-07-01 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：:A comparison of auditory and visual perception of scatterplots showed similar correlation estimation performance in both modalities. The present study replicated this experiment using electrotactile (electrocutaneous) presentation of scatterplots on the fingertips and abdomen, as well as visual presentation. The corre...

journal_title：Medical & biological engineering & computing

authors： Haase SJ,Kaczmarek KA

更新日期：2005-03-01 00:00:00

abstract：:Magnetoenterography (MENG) is a new, non-invasive technique that measures gastrointestinal magnetic signals near the body surface. This study was undertaken to evaluate the temporal and spatial characteristics of the magnetic signals generated by gastric and duodenal slow wave activity. The gastrointestinal magnetic f...

journal_title：Medical & biological engineering & computing

authors： Turnbull GK,Ritcey SP,Stroink G,Brandts B,van Leeuwen P

更新日期：1999-09-01 00:00:00

abstract：:Tissue hardness is related to tissue composition, and this is often changed by disease. It is therefore of interest to measure the hardness in an objective and non-invasive way. A tactile sensor based on a vibrating piezoelectric ceramic element in a feedback loop is described. When the sensor touches an object it pro...

journal_title：Medical & biological engineering & computing

authors： Eklund A,Bergh A,Lindahl OA

更新日期：1999-09-01 00:00:00

abstract：:Primary stability of refixated fractures in case of shoulder hemiarthroplasty is a prerequisite to restore physiological glenohumeral joint function. Clinical observations often show a secondary dislocation and subsequent resorption of the bony anchor points like the greater and lesser tuberosity at the rotator cuff t...

journal_title：Medical & biological engineering & computing

authors： Baumgartner D,Lorenzetti SR,Mathys R,Gasser B,Stüssi E

更新日期：2009-05-01 00:00:00

abstract：:A method for making a current-ratio map to determine the ischaemic area of angina pectoris (AP) patients has been developed. This method uses a current-arrow map calculated using a ORS wave from 64-channel magnetocardiogram (MCG) signals. The current-ratio map can be calculated from the ratio of an exercise-induced cu...

journal_title：Medical & biological engineering & computing

authors： Kandori A,Kanzaki H,Miyatake K,Hashimoto S,Itoh S,Tanaka N,Miyashita T,Tsukada K

更新日期：2001-01-01 00:00:00

abstract：:The aim of this study was to investigate conventionally and early loaded titanium and titanium-zirconium alloy implants by three-dimensional finite element stress analysis. Three-dimensional model of a dental implant was created and a thread area was established as a region of interest in trabecular bone to study a lo...

journal_title：Medical & biological engineering & computing

authors： Akça K,Eser A,Çavuşoğlu Y,Sağırkaya E,Çehreli MC

更新日期：2015-05-01 00:00:00

abstract：:The objective of this study was to evaluate the effect of following combined treatment with parathyroid hormone (1-34) (PTH) and beta-tricalcium phosphate (β-TCP) on local bone formation in a rat 3-mm critical-size defect at distal femur. Twelve weeks after bilateral ovariectomy (OVX) and sham operation (sham), all an...

journal_title：Medical & biological engineering & computing

authors： Tao ZS,Tu KK,Huang ZL,Zhou Q,Sun T,Xu HM,Zhou YL,Lv YX,Cui W,Yang L

更新日期：2016-09-01 00:00:00

abstract：:A new method of quantifying dermal perfusion on a regional basis using a dynamic thermographic technique is investigated. The technique is based on the relationship between dermal perfusion and the rate of skin surface reheating following the application of a transient cold challenge predicted by a theoretical model. ...

journal_title：Medical & biological engineering & computing

authors： Wilson SB,Spence VA

更新日期：1989-09-01 00:00:00

abstract：:The mechanical impedance of the ankle joint during electrical stimulation of the soleus is studied by applying constant-velocity 10 degrees angular perturbations to the ankle and measuring the resultant torque. Both neurologically intact subjects and spinal cord injured subjects are tested. Lumped, piecewise linear mo...

journal_title：Medical & biological engineering & computing

authors： Flaherty B,Robinson C,Agarwal G

更新日期：1994-05-01 00:00:00

abstract：:The purpose of this study was to evaluate the effect of increased blood flow on angiogenesis at the large vessels. The arteriovenous (AV) shunt was made on the thigh of male Wistar rats (n = 27) to increase blood flow, wrapped with artificial skin dermis, which consisted of a silicon outer layer, and isolated from sur...

journal_title：Medical & biological engineering & computing

authors： Asano Y,Ichioka S,Shibata M,Ando J,Nakatsuka T

更新日期：2005-01-01 00:00:00

abstract：:This article presents a novel approach of edged and edgeless object-shape recognition and 3D reconstruction from gradient-based analysis of tactile images. We recognize an object's shape by visualizing a surface topology in our mind while grasping the object in our palm and also taking help from our past experience of...

journal_title：Medical & biological engineering & computing

authors： Khasnobish A,Singh G,Jati A,Konar A,Tibarewala DN

更新日期：2014-04-01 00:00:00

abstract：:Several recent studies have quantified abnormalities in Parkinsonian gait. However, few studies have attempted to quantify the regularity of body motion during walking in patients with Parkinson's disease. The aim of the paper was to characterise body motion patterns in healthy, elderly subjects and patients with Park...

journal_title：Medical & biological engineering & computing

authors： Sekine M,Akay M,Tamura T,Higashi Y,Fujimoto T

更新日期：2004-01-01 00:00:00

abstract：:An algorithm for determining the frequency and propagation time of the gastric slow wave has been designed for integration into a demand gastric pacing system. The algorithm analyses the serosal activity in both the time and frequency domains, and the results are compared to produce a conclusion only when the values a...

journal_title：Medical & biological engineering & computing

authors： Gray MB,Williams RD,Chen JD

更新日期：2000-01-01 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：: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：:Left ventricular assist devices (LVAD) emerges as an effective clinical device providing life-saving support to heart patients. The design of blood pump of an LVAD involves incredible accuracy and thorough understanding of hemodynamics to mimic the functionality of a healthy ventricle. This work studies hemodynamics a...

journal_title：Medical & biological engineering & computing

authors： Kannojiya V,Das AK,Das PK

更新日期：2020-02-01 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：: ...

journal_title：Medical & biological engineering & computing

authors： Khaleelur Rahiman PF,Jayanthi VS,Jayanthi AN

更新日期：2019-03-01 00:00:00

abstract：:Biological variation in branching patterns is likely to affect perfusion of tissue. To assess the fundamental consequences of branching characteristics, 50 stochastic asymmetrical coronary trees and one non-stochastic symmetrical branching tree were generated. In the stochastic trees, area growth, A, at branching poin...

journal_title：Medical & biological engineering & computing

authors： Dankelman J,Cornelissen AJ,Lagro J,Vanbavel E,Spaan JA

更新日期：2007-01-01 00:00:00

abstract：:A novel laser Doppler flowmetry scheme is reported that adjusts the processing bandwidth adaptively to optimise the estimation of flow. To obtain an adequate processing bandwidth, the Doppler spectra is first fitted to the Lorentzian function, and the bandwidth at half the maximum of the Lorentzian function is used as...

journal_title：Medical & biological engineering & computing

authors： Chen YY,Lin YH,Jan IC,Liu RS,Chou NK,Jan GJ

更新日期：2004-05-01 00:00:00

abstract：:This review is a commentary on recent, altered perspectives about biomedical engineering and its role in medicine. It is argued that, rather than being a peripheral specialty, medical engineering and engineering principles in general have a direct application to biochemical medicine and cell biology. A brief descripti...

journal_title：Medical & biological engineering & computing

authors： Vadgama P

更新日期：1992-07-01 00:00:00

abstract：:Greater trochanter (GT) stabilization techniques following a fracture or an osteotomy are still showing high levels of postoperative complications. Understanding the effect of femoral neck cut placement, cable tension and muscles forces on GT fragment displacements could help surgeons optimize their techniques. A 3D f...

journal_title：Medical & biological engineering & computing

authors： Petit Y,Cloutier LP,Duke K,Laflamme GY

更新日期：2012-04-01 00:00:00

abstract：:The diagnosis of sleep-disordered breathing (SDB) usually relies on the analysis of complex polysomnographic measurements performed in specialized sleep centers. Automatic signal analysis is a promising approach to reduce the diagnostic effort. This paper addresses SDB and sleep assessment solely based on the analysis...

journal_title：Medical & biological engineering & computing

authors： Kesper K,Canisius S,Penzel T,Ploch T,Cassel W

更新日期：2012-02-01 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：:When the microvascular blood perfusion in human skin is measured by photoplethysmography (PPG), infra-red light (800-960 nm) is normally used as the light source. The PPG signal, which consists of a pulsatile (AC) and a slowly fluctuating (DC) component, was studied at different optical wavelengths utilising optical f...

journal_title：Medical & biological engineering & computing

authors： Lindberg LG,Oberg PA

更新日期：1991-01-01 00:00:00