Plasma detection of NO by a catheter.

abstract：:On the basis of spatial covariance it is found that, by spatial filtering the localisation of a single dipole source, both parallel and perpendicular to the measurement plane (assuming a signal-noise ratio of 5:1), can be performed with an accuracy of < 0.5 mm. When the signal-noise ratio is increased to 30:1, the res...

journal_title：Medical & biological engineering & computing

authors： Wagner H,Eiselt M,Zwiener U

更新日期：1997-11-01 00:00:00

abstract：:Portable biomedical instrumentation has become an important part of diagnostic and treatment instrumentation, including telemedicine applications. Low-voltage and low-power design tendencies prevail. Modern battery cell voltages in the range of 3-3.6 V require appropriate circuit solutions. A two-electrode biopotentia...

journal_title：Medical & biological engineering & computing

authors： Dobrev D

更新日期：2004-03-01 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：:An atlas-based multimodal registration method for 2-dimension images with discrepancy structures was proposed in this paper. Atlas was utilized for complementing the discrepancy structure information in multimodal medical images. The scheme includes three steps: floating image to atlas registration, atlas to reference...

journal_title：Medical & biological engineering & computing

authors： Lv W,Chen H,Peng Y,Li Y,Li J

更新日期：2018-11-01 00:00:00

abstract：:Stroke survivors are more prone to developing cognitive impairment and dementia. Dementia detection is a challenge for supporting personalized healthcare. This study analyzes the electroencephalogram (EEG) background activity of 5 vascular dementia (VaD) patients, 15 stroke-related patients with mild cognitive impairm...

journal_title：Medical & biological engineering & computing

authors： Al-Qazzaz NK,Ali SHBM,Ahmad SA,Islam MS,Escudero J

更新日期：2018-01-01 00:00:00

abstract：:Precise segmentation of stroke lesions from brain magnetic resonance (MR) images poses a challenging task in automated diagnosis. In this paper, we proposed a new method called watershed-based lesion segmentation algorithm (WLSA), which is a novel intensity-based segmentation technique used to delineate infarct lesion...

journal_title：Medical & biological engineering & computing

authors： Subudhi A,Jena S,Sabut S

更新日期：2018-05-01 00:00:00

abstract：:Several 3D reconstruction techniques deriving from stereoradiographic DLT have been presented during the last 15 years, but these techniques have usually been limited in accuracy because of the small number of corresponding anatomical landmarks identified on both radiographs. A new technique has recently been proposed...

journal_title：Medical & biological engineering & computing

authors： Mitulescu A,Semaan I,De Guise JA,Leborgne P,Adamsbaum C,Skalli W

更新日期：2001-03-01 00:00:00

abstract：:The purpose of the study was to explore the application of artificial neural network model in the auxiliary diagnosis of lung cancer and compare the effects of back-propagation (BP) neural network with Fisher discrimination model for lung cancer screening by the combined detections of four biomarkers of p16, RASSF1A a...

journal_title：Medical & biological engineering & computing

authors： Duan X,Yang Y,Tan S,Wang S,Feng X,Cui L,Feng F,Yu S,Wang W,Wu Y

更新日期：2017-08-01 00:00:00

abstract：:To evaluate the possibility of respiratory-volume measurement using photoplethysmography (PPG), PPG signals from 16 normal volunteers are collected, and the respiratory-induced intensity variations (RIIV) are digitally extracted. The RIIV signals are studied while respiratory volume is varied. Furthermore, respiratory...

journal_title：Medical & biological engineering & computing

authors： Johansson A,Oberg PA

更新日期：1999-01-01 00:00:00

abstract：:A system is presented for the recording of physiological signals on an unmodified domestic videocassette recorder (VCR). A modification in the vertical synchronism pulses permits the recording of continuous analogue signals without significant loss of samples. The system allows up to 16 input channels, with a maximum ...

journal_title：Medical & biological engineering & computing

authors： Salvador CH,Rosende P,González MA

更新日期：1991-03-01 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 physiological parameters of blood such as extracellular Na(+), K(+), Cl(-), pH, 2,3-DPG and ATP and the complex electrical impedance were measured using whole blood samples from 31 male donors (21 donors form the training set and ten donors were used for testing), on the 0th, 10th and 21st day of blood bank storag...

journal_title：Medical & biological engineering & computing

authors： Ulgen Y,Sezdi M

更新日期：2007-07-01 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：:Axial and transverse components of liquid velocity are measured by laser Doppler anemometer in a perspex tube that has been deformed at one point to resemble the shape of the throat of a partially collapsed flexible tube, conveying fluid while being compressed externally. The Reynolds number is 5900. The flow down-str...

journal_title：Medical & biological engineering & computing

authors： Bertram CD,Muller M,Ramus F,Nugent AH

更新日期：2001-07-01 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：:Steady-state visual evoked potentials (SSVEPs) are widely employed in brain-computer interface (BCI) applications, especially to control machines. However, the use of SSVEPs leads to eye fatigue and causes lower accuracy over the long term, particularly when multi-commands are required. Therefore, this paper proposes ...

journal_title：Medical & biological engineering & computing

authors： Punsawad Y,Wongsawat Y

更新日期：2017-06-01 00:00:00

abstract：:In this study, we introduce a novel simulation technique to incorporate delineation errors into radiotherapy treatment margins and combine them with organ motion and set-up errors to investigate the cumulative dosimetric effects in different tumour sites. The effects of applying patient realignment correction protocol...

journal_title：Medical & biological engineering & computing

authors： Mzenda B,Hosseini-Ashrafi M,Palmer A,Liu H,Brown DJ

更新日期：2010-07-01 00:00:00

abstract：:Many successful models to describe the biomechanical characteristics of planar biological soft tissues are based on strain energy function. However, the parameters in these models are determined by biaxial extension test, which might be difficult to exercise for certain types of soft tissue. This study presents a new ...

journal_title：Medical & biological engineering & computing

authors： Li L,Qian X,Wang H,Hua L,Zhang H,Liu Z

更新日期：2013-10-01 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：:This article presents a stimulation control method using a uniaxial gyroscope measuring angular velocity of the shank in the sagittal plane, to control functional electrical stimulation of the triceps surae to improve push-off of stroke subjects during gait. The algorithm is triggered during each swing phase of gait w...

journal_title：Medical & biological engineering & computing

authors： Monaghan CC,van Riel WJ,Veltink PH

更新日期：2009-11-01 00:00:00

abstract：:In the routine recording of magnetocardiograms (MCGs), it is necessary to underline the problem of noise cancellation. Source separation has often been suggested to solve this problem. In this paper, blind source separation (BSS), by means of singular value decomposition (SVD) and independent component analysis (ICA),...

journal_title：Medical & biological engineering & computing

authors： DiPietroPaolo D,Müller HP,Nolte G,Erné SN

更新日期：2006-06-01 00:00:00

abstract：:We estimated the dynamic cell metabolic activity and the distribution of the pH value and oxygen concentration in tissue samples cultured in vitro by using real-time sensor records and a numerical simulation of the underlying reaction-diffusion processes. As an experimental tissue model, we used chicken spleen slices....

journal_title：Medical & biological engineering & computing

authors： Pfister C,Forstmeier C,Biedermann J,Schermuly J,Demmel F,Wolf P,Kaspers B,Brischwein M

更新日期：2016-05-01 00:00:00

abstract：:The main constituent of an ultrasound contrast agent (UCA) is gas-filled microbubbles. An average UCA contains billions per ml. These microbubbles are excellent ultrasound scatterers due to their high compressibility. In an ultrasound field they act as resonant systems, resulting in harmonic energy in the backscattere...

journal_title：Medical & biological engineering & computing

authors： de Jong N,Emmer M,van Wamel A,Versluis M

更新日期：2009-08-01 00:00:00

abstract：:With the advent of biomedical imaging technology, the number of captured and stored biomedical images is rapidly increasing day by day in hospitals, imaging laboratories and biomedical institutions. Therefore, more robust biomedical image analysis technology is needed to meet the requirement of the diagnosis and class...

journal_title：Medical & biological engineering & computing

authors： Pang S,Du A,Orgun MA,Yu Z

更新日期：2019-01-01 00:00:00

abstract：:The aim of this study was to evaluate feasibility and reproducibility of quantitative assessment of colonic morphology on CT colonography (CTC). CTC datasets from 60 patients with optimal colonic distension were assessed using prototype software. Metrics potentially associated with poor endoscopic performance were cal...

journal_title：Medical & biological engineering & computing

authors： Weber CN,Lev-Toaff AS,Levine MS,Sudarsky S,Guendel L,Geiger B,Zafar HM

更新日期：2017-03-01 00:00:00

abstract：:This study analyzes the performance of knee extension and flexion of Taekwondo and Kickboxing athletes. The power values were extracted through electromyography obtained by an isokinetic dynamometer at 60 degrees per second. These values are resulted from the square of the electromyography signal. The analysis of kick...

journal_title：Medical & biological engineering & computing

authors： Machado SM,Osório RA,Silva NS,Magini M

更新日期：2010-06-01 00:00:00

abstract：:Disturbed cerebrospinal fluid (CSF) dynamics are part of the pathophysiology of normal pressure hydrocephalus (NPH) and can be modified and treated with shunt surgery. This study investigated the contribution of established CSF dynamic parameters to AMP(mean), a prognostic variable defined as mean amplitude of cardiac...

journal_title：Medical & biological engineering & computing

authors： Qvarlander S,Malm J,Eklund A

更新日期：2014-01-01 00:00:00

abstract：:The regulation of cerebral blood flow (CBF) following changes in arterial blood pressure (ABP) and end-tidal pCO2 (EtCO2) are of clinical interest in assessing cerebrovascular reserve capacity. Linear finite-impulse-response modelling is applied to ABP, EtCO2 and CBF velocity (CBFV, from transcranial Doppler measureme...

journal_title：Medical & biological engineering & computing

authors： Simpson DM,Panerai RB,Evans DH,Garnham J,Naylor AR,Bell PR

更新日期：2000-09-01 00:00:00

abstract：:A biomechanical analysis of the constant peak displacement and constant peak force methods of cardiopulmonary resuscitation (CPR) has revealed that optimal CC performance strongly depends on back support stiffness, CC rate, and the thoracic stiffness of the patient being resuscitated. Clinically the results presented ...

journal_title：Medical & biological engineering & computing

authors： Dellimore KH,Scheffer C

更新日期：2012-12-01 00:00:00

abstract：:In this study, we propose an integrated tooth segmentation and gingival tissue deformation simulation framework used to design and evaluate the orthodontic treatment plan especially with invisible aligners. Firstly, the bio-characteristics information of the digital impression is analyzed quantitatively and demonstrat...

journal_title：Medical & biological engineering & computing

authors： Yuan T,Wang Y,Hou Z,Wang J

更新日期：2020-10-01 00:00:00