Automatic interpretation of hyperventilation-induced electroencephalogram constructed in the way of qualified electroencephalographer's visual inspection.

abstract：:A compression algorithm for electrocardiogram signals is presented, based on an auto-associative neural network. Issues of weight and activation coding are considered, and compression performances of various network sizes are compared. A unique feature is the performance improvement achieved using DC level removal. A ...

journal_title：Medical & biological engineering & computing

authors： Hamilton DJ,Thomson DC,Sandham WA

更新日期：1995-11-01 00:00:00

abstract：:Photoplethysmography imaging (PPGI) for non-contact monitoring of preterm infants in the neonatal intensive care unit (NICU) is a promising technology, as it could reduce medical adhesive-related skin injuries and associated complications. For practical implementations of PPGI, a region of interest has to be detected ...

journal_title：Medical & biological engineering & computing

authors： Antink CH,Ferreira JCM,Paul M,Lyra S,Heimann K,Karthik S,Joseph J,Jayaraman K,Orlikowsky T,Sivaprakasam M,Leonhardt S

更新日期：2020-12-01 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：: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：:Mammography is a widely used screening tool and is the gold standard for the early detection of breast cancer. The classification of breast masses into the benign and malignant categories is an important problem in the area of computer-aided diagnosis of breast cancer. A small dataset of 57 breast mass images, each wi...

journal_title：Medical & biological engineering & computing

authors： Nandi RJ,Nandi AK,Rangayyan RM,Scutt D

更新日期：2006-08-01 00:00:00

abstract：:The heart rate variability (HRV) is an indicator of the subject homeostasis alterations. For a healthy individual, the HRV shows a nonlinear behavior, thus requiring a nonlinear approach to provide additional information about HRV dynamics. In this work, the nonlinear techniques, central tendency measure (CTM) and sec...

journal_title：Medical & biological engineering & computing

authors： dos Santos L,Barroso JJ,Macau EE,de Godoy MF

更新日期：2015-11-01 00:00:00

abstract：:The object of this study is to compare the performance of two new bilinear time-frequency representation techniques with the spectrogram to characterise the behaviour of heart murmurs produced by bioprosthetic heart valves implanted in the mitral or aortic position. The murmurs are those of mitral stenosis, mitral reg...

journal_title：Medical & biological engineering & computing

authors： Debiais F,Durand LG,Pibarot P,Guardo R

更新日期：1997-09-01 00:00:00

abstract：:Medical confidentiality is an essential duty in the medical profession. In this paper, we introduce a novel robust blind watermarking method for securing the medical report in a DICOM (Digital Imaging and Communications in Medicine) imaging. The insertion of each bit is done in the subtraction of adjacent DC coefficie...

journal_title：Medical & biological engineering & computing

authors： Boussif M,Aloui N,Cherif A

更新日期：2020-11-01 00:00:00

abstract：:To make picture archiving and communication systems (PACS) a practical reality for small-scale structures, it appears necessary to build a network that integrates and optimises production management, analysis and storage of images, and to include the ability to communicate with other similar remote structures. To solv...

journal_title：Medical & biological engineering & computing

authors： Duchêne J,Lerallut JF,Gong N,Kanz R

更新日期：1993-05-01 00:00:00

abstract：:The aim of this study was the analysis of the mechanical behaviour of a partially porous lumbar custom-made cage by means of a subject-specific finite element analysis (FEA). The cage, made of Ti6Al4V ELI alloy, was produced via electron beam melting (EBM) process and surgically implanted in a female subject, 50 years...

journal_title：Medical & biological engineering & computing

authors： Epasto G,Distefano F,Mineo R,Guglielmino E

更新日期：2019-12-01 00:00:00

abstract：:In this study, we present finite element analysis models to calculate the increase in intrathoracic volume of pectus excavatum patients after the Nuss procedure. One virtue of our approach is that the measurement of the intrathoracic volume has no time difference and is not affected by postoperative pain, which cannot...

journal_title：Medical & biological engineering & computing

authors： Chang PY,Hsu ZY,Lai JY,Wang CJ,Ching YT

更新日期：2010-02-01 00:00:00

abstract：:It is clinically well-established that minimally invasive subcutaneous continuous glucose monitoring (CGM) sensors can significantly improve diabetes treatment. However, CGM readings are still not as reliable as those provided by standard fingerprick blood glucose (BG) meters. In addition to unavoidable random measure...

journal_title：Medical & biological engineering & computing

authors： Facchinetti A,Del Favero S,Sparacino G,Cobelli C

更新日期：2015-12-01 00:00:00

abstract：:Monitoring upper-limb activity in a free-living environment is important for the evaluation of rehabilitation. This study is a validation of the Strathclyde Upper-Limb Activity Monitor (SULAM) which records the vertical movement and position of each wrist, and assesses bimanual movement. Agreement between the SULAM an...

journal_title：Medical & biological engineering & computing

authors： Vega-Gonzalez A,Bain BJ,Dall PM,Granat MH

更新日期：2007-10-01 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

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：:Most tissues are subject to some form of physiological mechanical loading which results in deformation of the cells triggering intracellular mechanotransduction pathways. This response to loading is generally essential for the health of the tissue, although more pronounced deformation may result in cell and tissue dam...

journal_title：Medical & biological engineering & computing

authors： Bader DL,Knight MM

更新日期：2008-10-01 00:00:00

abstract：:Blood oxygenation level is an important measure that can be used alongside functional magnetic resonance imaging data in order to obtain closer correlates of neuronal activation. A robust estimate of this measure has thus far not been demonstrated. This is mainly due to the lack of knowledge of the underlying paramete...

journal_title：Medical & biological engineering & computing

authors： Dagher J,Du YP

更新日期：2012-05-01 00:00:00

abstract：:The alpha angle is a parameter extensively used to assess for cam-type femoroacetabular impingement (FAI) in a 2D image of the hip. As this angle requires estimation of the axis of the femoral neck, the drawing of this axis often results in measurement errors due to subjective judgment, influencing inter-rater and int...

journal_title：Medical & biological engineering & computing

authors： Lai CL,Chi WM,Ho YJ,Lin CC,Lin HC,Kuo CL,Chen JH

更新日期：2019-07-01 00:00:00

abstract：:This article compares the determination of body fat-free-mass (FFM) by impedance, using either hand-to-foot resistance (R₁₃) or foot-to-foot one (R₃₄) from comparison with dual X-ray absorptiometry (DXA) measurements in a normal population. The first goal was to see if the foot-to-foot resistance used in body fat anal...

journal_title：Medical & biological engineering & computing

authors： Bousbiat S,Jaffrin MY,Dongmo E

更新日期：2011-11-01 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：:One challenge in the current research of brain-computer interfaces (BCIs) is how to classify time-varying electroencephalographic (EEG) signals as accurately as possible. In this paper, we address this problem from the aspect of updating feature extractors and propose an adaptive feature extractor, namely adaptive com...

journal_title：Medical & biological engineering & computing

authors： Sun S,Zhang C

更新日期：2006-10-01 00:00:00

abstract：:The mastering of pulmonary auscultation requires complex acoustic skills. Computer-assisted learning tools (CALTs) have potential to enhance the learning of these skills; however, few have been developed for this purpose and do not integrate all the required features. Thus, this study aimed to assess the usability of ...

journal_title：Medical & biological engineering & computing

authors： Machado A,Oliveira A,Jácome C,Pereira M,Moreira J,Rodrigues J,Aparício J,Jesus LMT,Marques A

更新日期：2018-04-01 00:00:00

abstract：:Time-varying filtering techniques are applied to the problem of baseline correction by letting the cut-off frequency of a linear filter be controlled by the low-frequency properties of the ECG signal. The time-varying filter is implemented as a bank of linear low-pass filters, in which each filter has a slightly diffe...

journal_title：Medical & biological engineering & computing

authors： Sörnmo L

更新日期：1993-09-01 00:00:00

abstract：:The purpose of this study is to investigate the feasibility and performance of a stationary, non-focused dual-sectored tubular transurethral ultrasound applicator for thermal exposure of tissue regions adjacent to the urethra for treatment of stress urinary incontinence (SUI) through acoustic and biothermal simulation...

journal_title：Medical & biological engineering & computing

authors： Liu D,Adams M,Burdette EC,Diederich CJ

更新日期：2020-06-01 00:00:00

abstract：:The surface electroenterogram (EEnG) is a non-invasive method of studying myoelectrical bowel activity. However, surface EEnG recordings are contaminated by cardiac activity, respiratory and motion artifacts, and other sources of interference. The aim of this work is to remove the respiration artifact and the very low...

journal_title：Medical & biological engineering & computing

authors： Ye Y,Garcia-Casado J,Martinez-de-Juan JL,Ponce JL

更新日期：2007-06-01 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：:In a previous paper we demonstrated that the linear portion of the pressure-velocity loop (PU-loop) corresponding to early systole could be used to calculate the local wave speed. In this paper we extend this work to show that determination of the time at which the PU-loop first deviates from linearity provides a conv...

journal_title：Medical & biological engineering & computing

authors： Khir AW,Swalen MJ,Feng J,Parker KH

更新日期：2007-12-01 00:00:00

abstract：:A mathematical model has been developed to facilitate indirect measurements of difficult to measure variables of the human energy metabolism on a daily basis. The model performs recursive system identification of the parameters of the metabolic model of the human energy metabolism using the law of conservation of ener...

journal_title：Medical & biological engineering & computing

authors： Őri ZP

更新日期：2017-05-01 00:00:00

abstract：:Left ventricular volume calibration based on the conductance catheter depends on the correct determination of the parallel conductance (Gp). Baan's saline manoeuvre procedure leads to Gp by finding the end-systolic (Ges) and end-diastolic (Ged) conductances, for each beat of the dilution curve rising limb. After plott...

journal_title：Medical & biological engineering & computing

authors： Herrera MC,Olivera JM,Valentinuzzi ME

更新日期：1999-03-01 00:00:00

abstract：:There is multiple evidence in the literature that a sub-threshold pre-pulse, delivered immediately prior to an electrical stimulation pulse, can alter the activation threshold of nerve fibers and motor unit recruitment characteristics. So far, previously published works combined monophasic stimuli with sub-threshold d...

journal_title：Medical & biological engineering & computing

authors： Vargas Luna JL,Mayr W,Cortés-Ramirez JA

更新日期：2018-12-01 00:00:00