Power spectra accuracy improvement by a method for leakage effect reduction.

Abstract:

:A method for leakage effect reduction by a modification of the classical spectra obtained Discrete Fourier Transform is proposed. The properties of the new method are investigated analytically and validated through synthesized signals, processed by the developed complete computational procedure. This combines the proposed method for leakage reduction and our previous approach for optimal epoch selection, enabling more accurate spectral analysis of relatively short epochs of various biomedical and other signals. An application of heart rate variability to power spectra is presented.

journal_name

Med Eng Phys

authors

Mitov IP

doi

10.1016/s1350-4533(97)00006-4

subject

Has Abstract

pub_date

1997-07-01 00:00:00

pages

485-93

issue

5

eissn

1350-4533

issn

1873-4030

pii

S1350-4533(97)00006-4

journal_volume

19

pub_type

杂志文章
  • How measurement artifacts affect cerebral autoregulation outcomes: A technical note on transfer function analysis.

    abstract::Cerebral autoregulation (CA) is the mechanism that aims to maintain adequate cerebral perfusion during changes in blood pressure (BP). Transfer function analysis (TFA), the most reported method in literature to quantify CA, shows large between-study variability in outcomes. The aim of this study is to investigate the ...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2016.02.001

    authors: Meel-van den Abeelen AS,de Jong DL,Lagro J,Panerai RB,Claassen JA

    更新日期:2016-05-01 00:00:00

  • Liquid ventilation: a mathematical model of gas diffusion in the premature lung.

    abstract::The liquid ventilation (LV) technique was previously demonstrated to be a valuable alternative to ordinary gas ventilation, particularly for newborn patients with severely distressed lungs. This work describes a mathematical model of gas transfer phenomena occurring within the lungs of a preterm newborn baby ventilate...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/s1350-4533(96)00041-0

    authors: Costantino ML,Fiore GB

    更新日期:1997-03-01 00:00:00

  • Comparison of isotropic and orthotropic material property assignments on femoral finite element models under two loading conditions.

    abstract::CT data has been widely used in the finite element modeling of bone. It can provide useful information on the geometrical topology and material properties of bone. Based on CT data, the assignment of bone material properties to finite element meshes is a fundamental step in the model generation. Most work done in this...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2005.06.003

    authors: Peng L,Bai J,Zeng X,Zhou Y

    更新日期:2006-04-01 00:00:00

  • Diver monitoring by ultrasonic digital data telemetry.

    abstract::A through-water ultrasonic data telemetry system using burst-mode frequency shift keying (FSK) is described. The system can be adapted for the transmission of data from various sensors, but it has been designed principally for monitoring the respiratory rate, heart rate, temperature and depth of a free-swimming diver ...

    journal_title:Medical engineering & physics

    pub_type: 临床试验,杂志文章

    doi:10.1016/1350-4533(94)90051-5

    authors: Woodward B,Bateman SC

    更新日期:1994-07-01 00:00:00

  • Herringbone-like hydrodynamic structures in microchannels: A CFD model to evaluate the enhancement of surface binding.

    abstract::Selected adsorption efficiency of a molecule in solution in a microchannel is strongly influenced by the convective/diffusive mass transport phenomena that supply the target molecule to the adsorption surface. In a standard microchannel with a rectangular cross section, laminar flow regime limits the fluid mixing, thu...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2017.07.003

    authors: Bianchi E,Piergiovanni M,Arrigoni C,Fukuda J,Gautieri A,Moretti M,Dubini G

    更新日期:2017-10-01 00:00:00

  • Biomechanical analysis of combining head-down tilt traction with vibration for different grades of degeneration of the lumbar spine.

    abstract::In recent years, a combination of traction and vibration therapy is usually used to alleviate low back pain (LBP) in clinical settings. Combining head-down tilt (HDT) traction with vibration was demonstrated to be efficacious for LBP patients in our previous study. However, the biomechanics of the lumbar spine during ...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2016.10.004

    authors: Wang S,Wang L,Wang Y,Du C,Zhang M,Fan Y

    更新日期:2017-01-01 00:00:00

  • Effects of a multi-sensory environment on brain-injured patients: assessment of spectral patterns.

    abstract::Snoezelen(®) multi-sensory (SMS) environment has been commonly applied as a therapeutic strategy to alleviate the symptoms associated to a wide variety of pathologies. Despite most studies have reported a wide range of positive revealed short-term changes associated to SMS intervention, little has been done to systema...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2012.06.001

    authors: Poza J,Gómez C,Gutiérrez MT,Mendoza N,Hornero R

    更新日期:2013-03-01 00:00:00

  • Bioelectric signal detrending using smoothness prior approach.

    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

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2014.05.009

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

    更新日期:2014-08-01 00:00:00

  • The kinetic model and simulation of blood coagulation--the kinetic influence of activated protein C.

    abstract::The paper described a limited part of the coagulation pathway, and in particular the inhibitory effects of activated protein C in the context of thrombin production. This is a computational modeling study with various assumption made of kinetic rates laws and their summation. The level of complexity and assumed parame...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2004.01.003

    authors: Qiao YH,Xu CQ,Zeng YJ,Xu XH,Zhao H,Xu H

    更新日期:2004-05-01 00:00:00

  • Reconstruction of proximal humeral fractures with a reduced number of screws and a reinforced bone substitute.

    abstract::Multi-fragmented fractures of the proximal humerus are difficult to treat, especially in the case of osteoporotic bone. Intra-operative risks include cartilage damage when inserting multiple screws. A common post-operative complication is distal-varus collapse of the head. The aim of this study was to investigate if a...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2020.06.002

    authors: Cristofolini L,Morellato K,Cavallo M,Guerra E

    更新日期:2020-08-01 00:00:00

  • Model-based physiomarkers of cerebral hemodynamics in patients with mild cognitive impairment.

    abstract::In our previous studies, we have introduced model-based "functional biomarkers" or "physiomarkers" of cerebral hemodynamics that hold promise for improved diagnosis of early-stage Alzheimer's disease (AD). The advocated methodology utilizes subject-specific data-based dynamic nonlinear models of cerebral hemodynamics ...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2014.02.025

    authors: Marmarelis VZ,Shin DC,Orme ME,Zhang R

    更新日期:2014-05-01 00:00:00

  • A multi-sample denaturation temperature tester for collagenous biomaterials.

    abstract::The temperature at which collagen denatures from a triple helix to a random coil structure is a useful measure of the degree of crosslinking. A new multi-sample denaturation temperature tester (DTT) has been constructed for rapid determination of the collagen denaturation temperature of natural tissues and collagenous...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/1350-4533(95)91882-h

    authors: Lee JM,Pereira CA,Abdulla D,Naimark WA,Crawford I

    更新日期:1995-03-01 00:00:00

  • Acoustic power measurement of high-intensity focused ultrasound transducer using a pressure sensor.

    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

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2015.01.014

    authors: Zhou Y

    更新日期:2015-03-01 00:00:00

  • The Windkessel model revisited: a qualitative analysis of the circulatory system.

    abstract::In this paper, we derive a comprehensive computational model to estimate the arterial pressure and the cardiac output of humans, by refining and adapting the well-established equations of the Windkessel theory. The model inputs are based on patient specific factors such as age, sex, smoking and fitness habits as well ...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2008.11.010

    authors: Tsanas A,Goulermas JY,Vartela V,Tsiapras D,Theodorakis G,Fisher AC,Sfirakis P

    更新日期:2009-06-01 00:00:00

  • Low-level laser therapy using the minimally invasive laser needle system on osteoporotic bone in ovariectomized mice.

    abstract::This study tested the effectiveness of low-level laser therapy (LLLT) in preventing and/or treating osteoporotic trabecular bone. Mice were ovariectomized (OVX) to induce osteoporotic bone loss. The tibiae of eight OVX mice were treated for 5 days each week for 2 weeks by LLLT (660 nm, 3 J) using a minimally invasive ...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2012.10.002

    authors: Ko CY,Kang H,Seo DH,Jung B,Schreiber J,Kim HS

    更新日期:2013-07-01 00:00:00

  • A mathematical model of the impact response of the seated subject.

    abstract::A model of the lumbar spine, pelvis and buttocks is developed, based on linear horizontal and vertical systems along with a rotational subsystem. The model can mimic qualitatively different experimental observations of transmission of vibrations from the seat to L3 in the sitting posture. It is concluded that while th...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/1350-4533(95)00062-3

    authors: Broman H,Pope M,Hansson T

    更新日期:1996-07-01 00:00:00

  • Validity of using wearable inertial sensors for assessing the dynamics of standing balance.

    abstract::Observational balance tests (e.g., Berg Balance Scale) are used to evaluate fall-risk. However, they tend to be subjective, and their reliability and sensitivity can be limited. The use of in-lab equipment for objective balance evaluation has not been common in clinical practice, due to the requirement of an equipped ...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2019.10.018

    authors: Noamani A,Nazarahari M,Lewicke J,Vette AH,Rouhani H

    更新日期:2020-03-01 00:00:00

  • Wear of polyethylene cups in total hip arthroplasty: a parametric mathematical model.

    abstract::This paper presents a parametric mathematical model of the head-cup wear coupling in total hip arthroplasty (THA). The model evaluates the dependence of acetabular volumetric wear upon the characteristic parameters of patient and hip prosthesis. Archard's law is assumed to calculate the wear coupling behaviour. The we...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/s1350-4533(98)00004-6

    authors: Pietrabissa R,Raimondi M,Di Martino E

    更新日期:1998-04-01 00:00:00

  • On the secondary stability of coated cementless hip replacement: parameters that affected interface strength.

    abstract::Unlike primary stability of coated cementless implants, their secondary stability has been poorly studied. This paper considers some theoretical aspects of the secondary stability of a coated cementless hip implant in a human femur. The bone is separated from the implant by a thin layer of microscopic peaks and trough...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/s1350-4533(03)00099-7

    authors: Orlik J,Zhurov A,Middleton J

    更新日期:2003-12-01 00:00:00

  • Suitability of commercial barometric pressure sensors to distinguish sitting and standing activities for wearable monitoring.

    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

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2014.01.001

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

    更新日期:2014-06-01 00:00:00

  • Development and assessment of a Microsoft Kinect based system for imaging the breast in three dimensions.

    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

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2013.12.018

    authors: Wheat JS,Choppin S,Goyal A

    更新日期:2014-06-01 00:00:00

  • Determination of the position and orientation of artificial knee implants using markers embedded in a bone: preliminary in vitro experiments.

    abstract::This study describes the method of determination of the position and orientation of artificial knee implants using a single-plane radiograph. To simplify the 3D/2D matching problem, we proposed to use small markers embedded in a bone. From the image coordinates of markers, it is possible to estimate the position and o...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/s1350-4533(03)00037-7

    authors: Imai S,Higashijima K,Ishida A,Fukuoka Y,Hoshino A,Minamitani H

    更新日期:2003-06-01 00:00:00

  • Effects of implant drilling parameters for pilot and twist drills on temperature rise in bone analog and alveolar bones.

    abstract::This study concerns the effects of different drilling parameters of pilot drills and twist drills on the temperature rise of alveolar bones during dental implant procedures. The drilling parameters studied here include the feed rate and rotation speed of the drill. The bone temperature distribution was analyzed throug...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2016.08.009

    authors: Chen YC,Hsiao CK,Ciou JS,Tsai YJ,Tu YK

    更新日期:2016-11-01 00:00:00

  • MRI/SPECT-based diagnosis and CT-guided high-intensity focused-ultrasound treatment system in MPTP mouse model of Parkinson's disease.

    abstract::Single-photon emission computed tomography (SPECT) of dopamine transporters with (99m)Tc-TRODAT-1 has recently been proposed to offer valuable information for the diagnosis of Parkinson's disease (PD). Furthermore, High-intensity focused ultrasound (HIFU) is a newly developed technique in which the energy of ultrasoun...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2012.01.006

    authors: Lee JD,Huang CH,Yang ST,Chu YH,Shieh YY,Chen JW,Lin KJ

    更新日期:2013-02-01 00:00:00

  • LES of non-Newtonian physiological blood flow in a model of arterial stenosis.

    abstract::Large Eddy Simulation (LES) is performed to study the physiological pulsatile transition-to-turbulent non-Newtonian blood flow through a 3D model of arterial stenosis by using five different blood viscosity models: (i) Power-law, (ii) Carreau, (iii) Quemada, (iv) Cross and (v) modified-Casson. The computational domain...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2011.11.013

    authors: Molla MM,Paul MC

    更新日期:2012-10-01 00:00:00

  • Linear and nonlinear analyses of multi-channel mechanomyographic recordings reveal heterogeneous activation of wrist extensors in presence of delayed onset muscle soreness.

    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

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2014.09.003

    authors: Madeleine P,Hansen EA,Samani A

    更新日期:2014-12-01 00:00:00

  • A practical technique for measuring human biofluid conductivity using high gain-frequency characteristics.

    abstract::Currently, the study of ion composition and performance in human biofluids plays an important role in biomedical engineering research and technology. This field may become universal for human diagnostics; it allows early detection of different diseases in humans by measuring changes in ion behaviour in human biofluids...

    journal_title:Medical engineering & physics

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2011.04.007

    authors: Al-Nabulsi JI,Aloquili O,Ausheva V,Yuldashev ZM

    更新日期:2011-11-01 00:00:00

  • Determination of backrest inclination based on biodynamic response study for prevention of low back pain.

    abstract::Whole-body vibration experiments with subjects under vertical vibration were performed to examine and evaluate effects of backrest inclination on vibration transmitted through seats to the human body by using biodynamic response parameters represented by apparent mass (APMS) and vibration power absorption (VPA). The b...

    journal_title:Medical engineering & physics

    pub_type: 临床试验,杂志文章

    doi:10.1016/j.medengphy.2010.02.007

    authors: Shibata N,Maeda S

    更新日期:2010-07-01 00:00:00

  • Loosening detection of the femoral component of hip prostheses with extracorporeal shockwaves: a pilot study.

    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

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2014.11.011

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

    更新日期:2015-02-01 00:00:00

  • Monolithic superelastic rods with variable flexural stiffness for spinal fusion: modeling of the processing-properties relationship.

    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

    pub_type: 杂志文章

    doi:10.1016/j.medengphy.2014.07.012

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

    更新日期:2014-11-01 00:00:00