Abstract：
:This paper is concerned with the investigation on the fatigue failure of implant fixation by numerical approaches. A computer algorithm based on finite element analysis and continuum damage mechanics was proposed to quantify the fatigue damage rate of cement mantle under physiological conditions. In examining the interfacial debonding effect, the interface elements were introduced at cement-stem interfaces and calibrated with the increase of loading cycles. Current results reveal that the major sites for failure initiation are in the proximal anterior-medial regions and at the distal prosthesis tip, which clearly demonstrate the same failure scenario as observed in clinical studies. Such fatigue failures not only result in the corruption of cement-stem interfaces, but also greatly affect the cement stress distribution and the damage rate in subsequent loading cycles. Another significant result is that the predicted damage rate increases steadily with gait cycles. This trend in damage development is consistent with the findings obtained from fatigue tests available in literature. It is anticipated that presented methodology can serve as a pre-clinical validation of cemented hip prostheses.
journal_name
Comput Methods Programs Biomedjournal_title
Computer methods and programs in biomedicineauthors
Hung JP,Chen JH,Chiang HL,Wu JSdoi
10.1016/j.cmpb.2004.05.004subject
Has Abstractpub_date
2004-11-01 00:00:00pages
103-13issue
2eissn
0169-2607issn
1872-7565pii
S0169260704001075journal_volume
76pub_type
杂志文章abstract：:A simple programme has been written in GW BASIC to calculate the percentage activity of 99Tcm-radiopharmaceuticals in different tissues after biodistribution. The programme is efficient, easy to handle and produces a permanent record in terms of a final report. ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(94)90139-2
更新日期：1994-02-01 00:00:00
abstract：:There are numerous programs ongoing to analyze environmental exposure of humans to xenobiotic chemicals via biomonitoring measurements (e.g.: EU ESBIO, COPHES; US CDC NHANES; Canadian Health Measures Survey). The goal of these projects is to determine relative trends in exposure to chemicals, across time and subpopula...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2012.04.014
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abstract：BACKGROUND AND OBJECTIVE:In acoustic inversion of photoacoustic tomography (PAT), an imaging model that precisely describes both the ultrasonic wave propagation and the detector properties is of crucial importance. Inspired by the multi-stripe integration model in clinical X-ray computed tomography systems, in this wor...
journal_title：Computer methods and programs in biomedicine
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doi：10.1016/j.cmpb.2020.105731
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abstract：:This paper presents an overview of the image analysis techniques in the domain of histopathology, specifically, for the objective of automated carcinoma detection and classification. As in other biomedical imaging areas such as radiology, many computer assisted diagnosis (CAD) systems have been implemented to aid hist...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2011.12.007
更新日期：2012-09-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Light sharing PET detector configuration coupled with thick light guide and Geiger-mode avalanche photodiode (GAPD) with large-area microcells was proposed to overcome the energy non-linearity problem and to obtain high light collection efficiency (LCE). METHODS:A Monte-Carlo simulation was c...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2016.04.007
更新日期：2016-07-01 00:00:00
abstract：:As studies have pointed out, severity scores are imperfect at predicting individual clinical chance of survival. The clinical condition and pathophysiological status of these patients in the Intensive Care Unit might differ from or be more complicated than most predictive models account for. In addition, as the pathop...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2013.03.018
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journal_title：Computer methods and programs in biomedicine
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abstract：:Diabetic retinopathy is one of the major causes of blindness in the world. Early diagnosis of this disease is vital to the prevention of visual loss. The analysis of retinal lesions such as exudates, microaneurysms and hemorrhages is a prerequisite to detect diabetic disorders such as diabetic retinopathy and macular ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2016.05.016
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journal_title：Computer methods and programs in biomedicine
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journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
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journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：
更新日期：1986-03-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:In this paper an information theory based multiscale singular value decomposition (SVD) is proposed for multilead electrocardiogram (ECG) signal processing. The shrinkage of singular values for different multivariate multiscale matrices at wavelet scales is based on information content. It aims...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2016.01.010
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abstract：BACKGROUND AND OBJECTIVE:Brain-Computer Interfaces (BCIs) based on auditory selective attention have been receiving much attention because i) they are useful for completely paralyzed users since they do not require muscular effort or gaze and ii) focusing attention is a natural human ability. Several techniques - such ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2018.10.002
更新日期：2018-11-01 00:00:00
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journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/s0169-2607(97)01777-x
更新日期：1997-01-01 00:00:00
abstract：PURPOSE:Computed tomography (CT) volume sets reconstructed with different kernels are helping to increase diagnostic accuracy. However, several CT volumes reconstructed with different kernels are difficult to sustain, due to limited storage and maintenance issues. A CT kernel conversion method is proposed using convolu...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2020.105615
更新日期：2020-11-01 00:00:00
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journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2009.03.010
更新日期：2009-10-01 00:00:00
abstract：:We designed and implemented algorithms for three-dimensional (3-D) reconstruction of brain images from serial sections using two important supercomputer architectures, vector and parallel. These architectures were represented by the Cray YMP and Connection Machine CM-2, respectively. The programs operated on linear oc...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(95)01619-5
更新日期：1995-02-01 00:00:00
abstract：:Methods for evaluating a single diagnostic test with reference to the disease prevalence in a given population include sensitivity, specificity, positive predictive value, negative predictive value, and accuracy. Patient disease status and, ultimately, the treatment course is determined by the outcome of these diagnos...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(91)90119-e
更新日期：1991-07-01 00:00:00
abstract：BACKGROUND:Diabetic retinopathy (DR) is one of the leading causes of blindness globally. Earlier detection and timely treatment of DR are desirable to reduce the incidence and progression of vision loss. Currently, deep learning (DL) approaches have offered better performance in detecting DR from retinal fundus images....
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2020.105320
更新日期：2020-07-01 00:00:00
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journal_title：Computer methods and programs in biomedicine
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journal_title：Computer methods and programs in biomedicine
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journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
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更新日期：2019-12-01 00:00:00
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journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2013.09.009
更新日期：2014-01-01 00:00:00
abstract：:A confocal microscope provides a sequence of images, at incremental depths, of the various corneal layers and structures. From these, medical practioners can extract clinical information on the state of health of the patient's cornea. In this work we are addressing problems associated with capturing and processing the...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2014.01.009
更新日期：2014-04-01 00:00:00
abstract：:A Monte Carlo model of steady-state light transport in multi-layered tissues (MCML) has been coded in ANSI Standard C; therefore, the program can be used on various computers. Dynamic data allocation is used for MCML, hence the number of tissue layers and grid elements of the grid system can be varied by users at run ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(95)01640-f
更新日期：1995-07-01 00:00:00
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journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2019.105312
更新日期：2020-04-01 00:00:00
abstract：:Blood vessels in ophthalmoscope images play an important role in diagnosis of some serious pathologies on retinal images. Hence, accurate extraction of vessels is becoming a main topic of this research area. Matched filter (MF) implementation for blood vessel detection is one of the methods giving more accurate result...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2009.04.005
更新日期：2009-11-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Heart rate variability (HRV) has increasingly been linked to medical phenomena and several HRV metrics have been found to be good indicators of patient health. This has enabled generalised treatment plans to be developed in order to respond to subtle personal differences that are reflected in ...
journal_title：Computer methods and programs in biomedicine
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更新日期：2020-03-01 00:00:00
abstract：:As we continue to strive to apply the findings of in vitro and animal studies to human disease and transition from genomics to proteomics, we will experience an ever-increasing need for human tissues. A web based system that provides access to tissues repositories and associated data will best facilitate the access to...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章,评审
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更新日期：2003-02-01 00:00:00
abstract：:In this article the development of a computer system for General Practice, ELIAS, is described. The use of the 4th-generation software toolkit AIDA proved to be very helpful in increasing the speed of development as well as the quality of the ELIAS software. The programming support that AIDA offered, not only in incre...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(87)90086-1
更新日期：1987-11-01 00:00:00
