abstract：:Recent approaches to the in vitro experimental study of cardiac fluid mechanics involve the use of whole biological structures to investigate in the lab novel therapeutic approaches for the treatment of heart pathologies. To enhance reliability and repeatability, the influence of the actuation strategy of the experime...

journal_title：Medical engineering & physics

authors： Vismara R,Leopaldi AM,Piola M,Asselta C,Lemma M,Antona C,Redaelli A,van de Vosse F,Rutten M,Fiore GB

更新日期：2016-04-01 00:00:00

abstract：:A small and wireless device that can capture the temporal pattern of perspiration by a novel structure of water vapor collection combined with reusable desiccant has been developed. The novel device consists of a small cylindrical case with a temperature/relative humidity sensor, battery-driven data logger, and silica...

journal_title：Medical engineering & physics

authors： Ogai K,Fukuoka M,Kitamura K,Uchide K,Nemoto T

更新日期：2016-04-01 00:00:00

abstract：:The biomedical applications of wireless robots are an active area of study. In addition to moving to a target lesion, wireless locomotive robots can deliver a therapeutic drug for a specific disease. Thus, they hold great potential as therapeutic devices in blood vessel diseases, such as thrombi and occlusions, and in...

journal_title：Medical engineering & physics

authors： Jeong S,Choi H,Go G,Lee C,Lim KS,Sim DS,Jeong MH,Ko SY,Park JO,Park S

更新日期：2016-04-01 00:00:00

abstract：:The loads between adjacent vertebrae can be generalised as a single spatial force acting at the intervertebral centre of reaction. The exact position in vivo is unknown. However, in rigid body musculoskeletal models that simulate upright standing, the position is generally assumed to be located at the discs' centres o...

journal_title：Medical engineering & physics

authors： Zander T,Dreischarf M,Schmidt H

更新日期：2016-03-01 00:00:00

abstract：:An inertial measurement unit (IMU) allows kinematic evaluation of human motion with fewer operational constraints than a gold standard optoelectronic motion capture (MOCAP) system. The study's aim was to compare IMU and MOCAP measurements of dynamic pelvic orientation angles during different activities of daily life (...

journal_title：Medical engineering & physics

authors： Bolink SA,Naisas H,Senden R,Essers H,Heyligers IC,Meijer K,Grimm B

更新日期：2016-03-01 00:00:00

abstract：:Sclerosis rim surrounding the necrotic area is commonly found in necrotic femoral head, but the biomechanical function of sclerosis rim has received relatively little attention. Little is known about the formation and natural history of sclerosis rim. In the present work, we assume that the necrotic change may trigger...

journal_title：Medical engineering & physics

authors： Chen Z,Xu Y,Qi Z,Zho J

更新日期：2015-12-01 00:00:00

abstract：:Intradialytic hypotension (IDH) is a major complication during hemodialysis treatment, and therefore it is highly desirable to identify, at an early stage during treatment, whether the patient is prone to IDH. Heart rate variability (HRV), blood pressure variability (BPV) and baroreflex sensitivity (BRS) were analyzed...

journal_title：Medical engineering & physics

authors： Hernando D,Sörnmo L,Sandberg F,Laguna P,Llamedo M,Bailón R

更新日期：2015-12-01 00:00:00

abstract：:Postural control deficits are the most disabling aspects of Parkinson's disease (PD), resulting in decreased mobility and functional independence. The aim of this study was to assess the postural control stability, revealed by variables based on the centre of pressure (CoP), in individuals with PD while performing a s...

journal_title：Medical engineering & physics

authors： Fernandes Â,Sousa AS,Couras J,Rocha N,Tavares JM

更新日期：2015-11-01 00:00:00

abstract：:Biomechanical movement analysis in 3D requires estimation of joint centres in the lower extremities and this estimation is based on extrapolation from markers placed on anatomical landmarks. The purpose of the present study was to quantify the accuracy of three established set of equations and provide new improved equ...

journal_title：Medical engineering & physics

authors： Sandau M,Heimbürger RV,Villa C,Jensen KE,Moeslund TB,Aanæs H,Alkjær T,Simonsen EB

更新日期：2015-10-01 00:00:00

abstract：:Spinal pedicle screw fixations have been used extensively to treat fracture, tumor, infection, or degeneration of the spine. Cannulated spinal pedicle screws with bone cement augmentation might be a useful method to ameliorate screw loosening. However, cannulated spinal pedicle screws might also increase the risk of s...

journal_title：Medical engineering & physics

authors： Shih KS,Hsu CC,Hou SM,Yu SC,Liaw CK

更新日期：2015-09-01 00:00:00

abstract：:Investigations focused on the gait and physiological limits of human speed have been on-going for more than a century. However, due to measurement limitation a kinetic understanding of the foot-ground collision and how these dynamics differ between individuals to confer speed and limit gait has only recently begun to ...

journal_title：Medical engineering & physics

authors： Bundle MW,Powell MO,Ryan LJ

更新日期：2015-09-01 00:00:00

abstract：:Sequentially drilling multiple holes in bone is used clinically for surface preparation to aid in fusion of a joint, typically under non-irrigated conditions. Drilling induces a significant amount of heat and accumulates after multiple passes, which can result in thermal osteonecrosis and various complications. To und...

journal_title：Medical engineering & physics

authors： Tai BL,Palmisano AC,Belmont B,Irwin TA,Holmes J,Shih AJ

更新日期：2015-09-01 00:00:00

abstract：:Some pulmonary diseases and injuries are believed to correlate with lung viscoelasticity changes. Hence, a better understanding of lung viscoelastic models could provide new perspectives on the progression of lung pathology and trauma. In the presented study, stress relaxation measurements were performed to quantify r...

journal_title：Medical engineering & physics

authors： Dai Z,Peng Y,Mansy HA,Sandler RH,Royston TJ

更新日期：2015-08-01 00:00:00

abstract：:Laser Ablation (LA) is a minimally-invasive procedure for tumor treatment. LA outcomes depend on the heat distribution inside tissues and require accurate temperature measurement during the procedure. Magnetic resonance imaging (MRI) allows a non-invasive and three-dimensional thermometry of the organ undergoing LA. I...

journal_title：Medical engineering & physics

authors： Allegretti G,Saccomandi P,Giurazza F,Caponero MA,Frauenfelder G,Di Matteo FM,Beomonte Zobel B,Silvestri S,Schena E

更新日期：2015-07-01 00:00:00

abstract：:The electrocardiogram (ECG) is a well-established technique for determining the electrical activity of the heart and studying its diseases. One of the most common pieces of information that can be read from the ECG is the heart rate (HR) through the detection of its most prominent feature: the QRS complex. This paper ...

journal_title：Medical engineering & physics

authors： Merino M,Gómez IM,Molina AJ

更新日期：2015-06-01 00:00:00

abstract：:The purpose of the present study was to compare the passive angle-torque curves and the passive stiffness (PS, N m °(-)(1)) values recorded simultaneously from a load cell versus an isokinetic dynamometer during dorsiflexion stretch tolerance assessments in vivo. Nine healthy men (mean ± SD age = 21.4 ± 1.6 years) com...

journal_title：Medical engineering & physics

authors： Buckner SL,Jenkins ND,Costa PB,Ryan ED,Herda TJ,Cramer JT

更新日期：2015-05-01 00:00:00

abstract：:Bone-attached robots and microstereotactic frames, intended for deep brain stimulation and minimally invasive cochlear implantation, typically attach to a patient's skull via bone anchors. A rigid and reliable link between such devices and the skull is mandatory in order to fulfill the high accuracy demands of minimal...

journal_title：Medical engineering & physics

authors： Kobler JP,Prielozny L,Lexow GJ,Rau TS,Majdani O,Ortmaier T

更新日期：2015-05-01 00:00:00

abstract：:Airway stents improve pulmonary function and quality of life in patients suffering from airway obstruction. The aim of this study was to compare main types of stents (silicone, balloon-dilated metal, self-expanding metal, and covered self-expanding metal) in terms of their mechanical properties and the radial forces t...

journal_title：Medical engineering & physics

authors： Ratnovsky A,Regev N,Wald S,Kramer M,Naftali S

更新日期：2015-04-01 00:00:00

abstract：:Resorption following tooth loss and poor bone quality affect the success of implants in the anterior maxilla. Inappropriate planning can cause implant loss and aesthetics problems that are difficult to resolve. There is a limited literature on the optimum number and location of implants in anterior maxilla for fabrica...

journal_title：Medical engineering & physics

authors： Bölükbaşı N,Yeniyol S

更新日期：2015-04-01 00:00:00

abstract：:The acoustic power of high-intensity focused ultrasound (HIFU) is an important parameter that should be measured prior to each treatment to guarantee effective and safe outcomes. A new calibration technique was developed that involves estimating the pressure distribution, calculating the acoustic power using an underw...

journal_title：Medical engineering & physics

authors： Zhou Y

更新日期：2015-03-01 00:00:00

abstract：:The diagnosis of aseptic loosening of hip implants is often challenging. A vibrational analysis of the bone-implant interface could be an alternative method to analyze the fixation of endoprostheses. We assessed an innovative and new approach for excitation by using extracorporeal shockwaves in this study. In three ca...

journal_title：Medical engineering & physics

authors： Rieger JS,Jaeger S,Kretzer JP,Rupp R,Bitsch RG

更新日期：2015-02-01 00:00:00

abstract：:Comprehensive evaluation of results obtained using acoustic and contact microphones in screening for laryngeal disorders through analysis of sustained phonation is the main objective of this study. Aiming to obtain a versatile characterization of voice samples recorded using microphones of both types, 14 different set...

journal_title：Medical engineering & physics

authors： Verikas A,Gelzinis A,Vaiciukynas E,Bacauskiene M,Minelga J,Hållander M,Uloza V,Padervinskis E

更新日期：2015-02-01 00:00:00

abstract：:Medical imaging and clinical studies have proven that the heart pumps by means of minor outer volume changes and back-and-forth longitudinal movements in the atrioventricular (AV) region. The magnitude of AV-plane displacement has also shown to be a reliable index for diagnosis of heart failure. Despite this, AV-plane...

journal_title：Medical engineering & physics

authors： Maksuti E,Bjällmark A,Broomé M

更新日期：2015-01-01 00:00:00

abstract：:In this study, we applied multi-channel mechanomyographic (MMG) recordings in combination with linear and nonlinear analyses to investigate muscular and musculotendinous effects of high intensity eccentric exercise. Twelve accelerometers arranged in a 3 × 4 matrix over the dominant elbow muscles were used to detect MM...

journal_title：Medical engineering & physics

authors： Madeleine P,Hansen EA,Samani A

更新日期：2014-12-01 00:00:00

abstract：:We have developed a computer-based system to simulate a guidewire in blood vessels for surgical planning, intra-operative assistance, and to facilitate the design of new guidewires. In this study, we compared simulation results with experimental results for validation of the simulation system. First, we inserted a com...

journal_title：Medical engineering & physics

authors： Takashima K,Tsuzuki S,Ooike A,Yoshinaka K,Yu K,Ohta M,Mori K

更新日期：2014-12-01 00:00:00

abstract：:The second-order difference plot, as a modified Poincaré plot, is one of the important approaches for assessing the dynamics of heart rate variability. However, corresponding quantitative analysis methods are relatively limited. Based on the second-order difference plot, we propose a novel method, called the multi-sca...

journal_title：Medical engineering & physics

authors： Huo C,Huang X,Ni H,Liu H,Bian C,Ning X

更新日期：2014-12-01 00:00:00

abstract：:The value of compliance of disposable elements such as infusion lines and syringes can significantly affect the performance characteristics of infusion devices. In a technique used to determine the compliance of infusion lines, the item under test is placed in a semi sealed water filled enclosure and the volume of flu...

journal_title：Medical engineering & physics

authors： Clarkson DM,Barbosa R

更新日期：2014-11-01 00:00:00

abstract：:T2 mapping is a powerful noninvasive technique providing quantitative biological information of the inherent tissue properties. However, its clinical usage is limited due to the relative long scanning time. This paper proposed a novel model-based method to address this problem. Typically, we directly estimated the rel...

journal_title：Medical engineering & physics

authors： Peng X,Liu X,Zheng H,Liang D

更新日期：2014-11-01 00:00:00

abstract：:The pulse pressure waveform has, for long, been known as a fundamental biomedical signal and its analysis is recognized as a non-invasive, simple, and resourceful technique for the assessment of arterial vessels condition observed in several diseases. In the current paper, waveforms from non-invasive optical probe tha...

journal_title：Medical engineering & physics

authors： Pereira T,Santos I,Oliveira T,Vaz P,Pereira T,Santos H,Pereira H,Correia C,Cardoso J

更新日期：2014-11-01 00:00:00

abstract：:The concept of a monolithic Ti-Ni spinal rod with variable flexural stiffness is proposed to reduce the risks associated with spinal fusion. The variable stiffness is conferred to the rod using the Joule-heating local annealing technique. The annealing temperature and the mechanical properties' distributions resulted ...

journal_title：Medical engineering & physics

authors： Facchinello Y,Brailovski V,Petit Y,Mac-Thiong JM

更新日期：2014-11-01 00:00:00

abstract：:We adopt the Ensemble Empirical Mode Decomposition (EEMD) method, with an appropriate thresholding on the Intrinsic Mode Functions (IMFs), to denoise the magnetocardiography (MCG) signal. To this end, we discuss the two associated problems that relate to: (i) the amplitude of noise added to the observed signal in the ...

journal_title：Medical engineering & physics

authors： Mariyappa N,Sengottuvel S,Parasakthi C,Gireesan K,Janawadkar MP,Radhakrishnan TS,Sundar CS

更新日期：2014-10-01 00:00:00

abstract：:Taper connections of modular hip prostheses are at risk of fretting and corrosion, which can result in reduced implant survival. The purpose of this study was to identify the minimum torque required to initiate a removal of the passivation layer at the taper interface as a function of assembly force and axial load. Ti...

journal_title：Medical engineering & physics

authors： Jauch SY,Coles LG,Ng LV,Miles AW,Gill HS

更新日期：2014-09-01 00:00:00

abstract：:The purpose of this study is to demonstrate a new MRI compatible loading device capable of reconstructing realistic loading scenarios of the human foot for research in the field of foot biomechanics. This device has two different configurations: one used to compress the forefoot and one to bend the metatarsophalangeal...

journal_title：Medical engineering & physics

authors： Chatzistergos PE,Naemi R,Chockalingam N

更新日期：2014-09-01 00:00:00

abstract：:Bioelectric signals such as electromyogram (EMG) and electrocardiogram (ECG) are often affected by various low-frequency trending interferences. It is critical to remove these interferences from the recordings so that the critical features of the bioelectric signals could be clearly observed. In this study, an advance...

journal_title：Medical engineering & physics

authors： Zhang F,Chen S,Zhang H,Zhang X,Li G

更新日期：2014-08-01 00:00:00

abstract：:Tissue engineering represents a new field aiming at developing biological substitutes to restore, maintain, or improve tissue functions. In this approach, scaffolds provide a temporary mechanical and vascular support for tissue regeneration while tissue in-growth is being formed. These scaffolds must be biocompatible,...

journal_title：Medical engineering & physics

authors： Almeida HA,Bártolo PJ

更新日期：2014-08-01 00:00:00

abstract：:Contact interactions between the hand and handle, such as the contact surface softness and contact surface curvature, will affect both physical effort and musculoskeletal fatigue, thereby the comfort and safety of power tool operations. Previous models of hand gripping can be categorized into two groups: multi-body dy...

journal_title：Medical engineering & physics

authors： Wu JZ,Dong RG,Warren CM,Welcome DE,McDowell TW

更新日期：2014-07-01 00:00:00

abstract：:This work proposes the use of miniature wireless inertial sensors as an objective tool for the diagnosis of ADHD. The sensors, consisting of both accelerometers and gyroscopes to measure linear and rotational movement, respectively, are used to characterize the motion of subjects in the setting of a psychiatric consul...

journal_title：Medical engineering & physics

authors： O'Mahony N,Florentino-Liano B,Carballo JJ,Baca-García E,Rodríguez AA

更新日期：2014-07-01 00:00:00

abstract：:The present study demonstrates the design, simulation, fabrication and testing of a label-free continuous manipulation and separation micro-device of particles/biological cells suspended on medium based on conventional dielectrophoresis. The current dielectrophoretic device uses three planner electrodes to generate no...

journal_title：Medical engineering & physics

authors： Das D,Biswas K,Das S

更新日期：2014-06-01 00:00:00

abstract：:Despite its medical relevance, accurate recognition of sedentary (sitting and lying) and dynamic activities (e.g. standing and walking) remains challenging using a single wearable device. Currently, trunk-worn wearable systems can differentiate sitting from standing with moderate success, as activity classifiers often...

journal_title：Medical engineering & physics

authors： Massé F,Bourke AK,Chardonnens J,Paraschiv-Ionescu A,Aminian K

更新日期：2014-06-01 00:00:00

abstract：:Three-dimensional surface imaging technologies have been used in the planning and evaluation of breast reconstructive and cosmetic surgery. The aim of this study was to develop a 3D surface imaging system based on the Microsoft Kinect and assess the accuracy and repeatability with which the system could image the brea...

journal_title：Medical engineering & physics

authors： Wheat JS,Choppin S,Goyal A

更新日期：2014-06-01 00:00:00