Measurement of retinal vascular tortuosity and its application to retinal pathologies.

abstract：:Dislocation is a serious potential complication of total hip replacement. Previous studies have proposed a newly developed total hip structure that meets the required oscillation angle of 120°, for which the chamfer on the acetabular liner rim was designed to enable the neck to impinge on the chamfer over a large area...

journal_title：Medical & biological engineering & computing

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

更新日期：2018-01-01 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：:Fetal heart rate (FHR) monitoring is used routinely in labor, but conventional methods have a limited capacity to detect fetal hypoxia/acidosis. An exploratory study was performed on the simultaneous assessment of maternal heart rate (MHR) and FHR variability, to evaluate their evolution during labor and their capacit...

journal_title：Medical & biological engineering & computing

authors： Gonçalves H,Pinto P,Silva M,Ayres-de-Campos D,Bernardes J

更新日期：2016-04-01 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：:Osteoporosis is one of the most common diseases that leads to bone fractures. Dual-energy X-ray absorptiometry is currently employed to measure the bone mineral density and to diagnose osteoporosis. Alternatively, the dielectric properties of bones are found to be influenced by bone mineral density; hence, dielectric ...

journal_title：Medical & biological engineering & computing

authors： Amin B,Elahi MA,Shahzad A,Porter E,McDermott B,O'Halloran M

更新日期：2019-01-01 00:00:00

abstract：:Trabecular bone has a complicated porous microstructure and consists of interconnected plates and rods known as trabeculae. The microarchitecture of the trabeculae contributes to load distribution capacity and, particularly, the optimal bone strength. Many previous studies have shown that morphological parameters are ...

journal_title：Medical & biological engineering & computing

authors： Basaruddin KS,Takano N,Yoshiwara Y,Nakano T

更新日期：2012-10-01 00:00:00

abstract：:A computer-controlled pump for use both in the study of vascular haemodynamics and in the calibration of clinical devices which measure blood flow is designed. The novel design of this pump incorporates two rack-mounted pistons, driven into opposing cylinders by a micro-stepping motor. This approach allows the product...

journal_title：Medical & biological engineering & computing

authors： Holdsworth DW,Rickey DW,Drangova M,Miller DJ,Fenster A

更新日期：1991-11-01 00:00:00

abstract：:The clinical efficacy of a microwave (MW) hyperthermia system using an electric-field converging (lens) applicator is evaluated for 42 malignant tumours with a maximum tumour depth of less than 7 cm. The mean of the maximum, average and minimum tumour temperature of the 42 tumours are 44.5, 42.5 and 40.7 C, respective...

journal_title：Medical & biological engineering & computing

authors： Hiraoka M,Nishimura Y,Masunaga S,Koishi M,Mitsumori M,Li YP,Nagata Y,Akuta K,Takahashi M,Abe M

更新日期：1995-01-01 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：:Breast cancer is the most common cancer among women globally, and the number of young women diagnosed with this disease is gradually increasing over the years. Mammography is the current gold-standard technique although it is known to be less sensitive in detecting tumors in woman with dense breast tissue. Detecting a...

journal_title：Medical & biological engineering & computing

authors： Wahab AA,Salim MI,Ahamat MA,Manaf NA,Yunus J,Lai KW

更新日期：2016-09-01 00:00:00

abstract：:The interactions between respiration, heart rate and blood pressure variability (HRV, BPV), are considered to be of paramount importance for the study of the functional organisation of the autonomic nervous system (ANS). The aim of the reported study is to detect and classify the intermittent phase locking (PL) phenom...

journal_title：Medical & biological engineering & computing

authors： Censi F,Calcagnini G,Lino S,Seydnejad SR,Kitney RI,Cerutti S

更新日期：2000-07-01 00:00:00

abstract：:Recent clinical evidence has suggested that tasks performed in kneeling or squatting postures place the knee at a higher risk for injury because loads across the knee might overload the ligaments. The objective of this study was to develop a subject-specific model of the knee that is kinematically driven to predict th...

journal_title：Medical & biological engineering & computing

authors： Yang Z,Wickwire AC,Debski RE

更新日期：2010-11-01 00:00:00

abstract：:Full-night polysomnography (PSG) has been recognized as the gold standard test for sleep apnea-hypopnea syndrome (SAHS). However, PSG examinees are physically restrained for the full night by many contact sensors and obtrusive connecting cables, inducing mental stress. We developed a non-contact SAHS diagnostic system...

journal_title：Medical & biological engineering & computing

authors： Kagawa M,Tojima H,Matsui T

更新日期：2016-05-01 00:00:00

abstract：:Instantaneous backflow through central clearance of bileaflet heart valves at the instant of closure is investigated. An Edwards-Duromedics valve in the mitral position is employed to measure the transient pressures near the entrance and exit region in an in vitro flow chamber. A region surrounding the clearance is mo...

journal_title：Medical & biological engineering & computing

authors： Lee CS,Chandran KB

更新日期：1995-05-01 00:00:00

abstract：:The fraction of repolarization variability independent of RR interval variability is of clinical interest. It has been linked to direct autonomic nervous system (ANS) regulation of the ventricles in healthy subjects and seems to reflect the instability of the ventricular repolarization process in heart disease. In thi...

journal_title：Medical & biological engineering & computing

authors： El-Hamad F,Javorka M,Czippelova B,Krohova J,Turianikova Z,Porta A,Baumert M

更新日期：2019-08-01 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 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：:The changes in the power spectra of single-fibre extracellular action potentials (SFEAPs) generated in an infinite anisotropic frequency-dependent volume conductor, which occurred as a result of alterations in the propagation velocity v and duration T(in) of the intracellular action potential (IAP) were analytically d...

journal_title：Medical & biological engineering & computing

authors： Dimitrov GV,Lateva ZC,Dimitrova NA

更新日期：1992-07-01 00:00:00

abstract：:Electromyography (EMG) in a bio-driven system is used as a control signal, for driving a hand prosthesis or other wearable assistive devices. Processing to get informative drive signals involves three main modules: preprocessing, dimensionality reduction, and classification. This paper proposes a system for classifyin...

journal_title：Medical & biological engineering & computing

authors： Phukpattaranont P,Thongpanja S,Anam K,Al-Jumaily A,Limsakul C

更新日期：2018-12-01 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

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：: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：: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：:A hypothetical neuromusculoskeletal model is developed to simulate human normal walking and its modulated behaviors. A small set of neural periodic patterns drive spinal muscle synergies which in turn lead to specific pattern of muscle activation and supraspinal feedback systems maintain postural balance during walkin...

journal_title：Medical & biological engineering & computing

authors： Jo S

更新日期：2008-02-01 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：:A personal computer system for electrocardiogram (ECG) ST-segment recognition is developed based on neural networks. The system consists of a preprocessor, neural networks and a recogniser. The adaptive resonance theory (ART) is employed to implement the neural networks in the system, which self-organise in response t...

journal_title：Medical & biological engineering & computing

authors： Suzuki Y,Ono K

更新日期：1992-01-01 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

abstract：:Pain control in conscious patients was investigated using a push-button, demand-driven supply of drugs. A fuzzy logic patient-controlled analgesia (PCA) algorithm was compared with a conventional algorithm, for alfentanil administration in extracorporeal shock-wave lithotripsy. The conventional PCA algorithm used an i...

journal_title：Medical & biological engineering & computing

authors： Shieh JS,Chang LW,Wang MS,Sun WZ,Wang YP,Yang YP

更新日期：2002-01-01 00:00:00

abstract：:Reactive hyperaemia is the term given to the temporary increase in blood flow that follows release of an occlusion of the arterial supply. Measurement of reactive hyperaemia in the leg below the knee is useful in assessment of the vascular system, as resting flows remain unaffected even in the presence of quite severe...

journal_title：Medical & biological engineering & computing

authors： Smye SW,Bloor MI

更新日期：1994-09-01 00:00:00

abstract：:The long QT syndrome (LQTS) is a genetic disorder, typically characterized by a prolonged QT interval in the ECG due to abnormal cardiac repolarization. LQTS may lead to syncopal episodes and sudden cardiac death. Various parameters based on T-wave morphology, as well as the QT interval itself have been shown to be us...

journal_title：Medical & biological engineering & computing

authors： Struijk JJ,Kanters JK,Andersen MP,Hardahl T,Graff C,Christiansen M,Toft E

更新日期：2006-07-01 00:00:00