Abstract：
:Arterial bypass grafts tend to fail after some years due to the development of intimal thickening (restenosis). Non-uniform hemodynamics following a bypass operation contributes to restenosis and bypass failure can occur due to the focal development of anastomotic intimal hyperplasia. Additionally, surgical injury aggravated by compliance mismatch between the graft and artery has been suggested as an initiating factor for progress of wall thickening along the suture line Vascular grafts that are small in diameter tend to occlude rapidly. Computational fluid dynamics (CFD) methods have been effectively used to simulate the physical and geometrical parameters characterizing the hemodynamics of various arteries and bypass configurations. The effects of such changes on the pressure and flow characteristics as well as the wall shear stress during a cardiac cycle can be simulated. Recently, utilization of fluid and structure interactions have been used to determine fluid flow parameters and structure forces including stress and strains relationships under steady and transient conditions. In parallel to this, experimental diagnostics techniques such as Laser Doppler Anemometry, Particle Image Velocimetry, Doppler Guide wire and Magnetic Resonance Imaging have been used to provide essential information and to validate the numerical results. Moreover, clinical imaging techniques such as magnetic resonance or computed tomography have assisted considerably in gaining a detailed patient-specific picture of the blood flow and structure dynamics. This paper gives a review of recent numerical investigations of various configurations of coronary artery bypass grafts (CABG). In addition, the paper ends with a summary of the findings and the future directions.
journal_name
Comput Methods Programs Biomedjournal_title
Computer methods and programs in biomedicineauthors
Owida AA,Do H,Morsi YSdoi
10.1016/j.cmpb.2011.12.005subject
Has Abstractpub_date
2012-11-01 00:00:00pages
689-705issue
2eissn
0169-2607issn
1872-7565pii
S0169-2607(11)00322-1journal_volume
108pub_type
杂志文章,评审abstract：BACKGROUND AND OBJECTIVE:Retinal pathology diseases such as glaucoma, obesity, diabetes, hypertension etc. have deadliest impact on life of human being today. Retinal blood vessels consist of various significant information which are helpful in detection and treatment of these diseases. Therefore, it is essential to se...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2020.105490
更新日期：2020-10-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:We describe and illustrate use of DISTING, a novel web application for computing alternative structurally identifiable linear compartmental models that are input-output indistinguishable from a postulated linear compartmental model. Several computer packages are available for analysing the str...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2017.02.025
更新日期：2017-05-01 00:00:00
abstract：BACKGROUND:The purpose of the study was to probe into the changes in life expectancy associated with schooling years found by the Organization for Economic Co-operation and Development (OECD). METHODS:The study was based on the OECD database from the period 2000 to 2006. The data of thirty countries were constructed t...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2013.11.016
更新日期：2014-03-01 00:00:00
abstract：:The purpose of this research is to develop an algorithm for a feedback controlled local electrical nerve fiber stimulation system which has the purpose to stop the repetitive firing in a particular region of the nervous system. The electrophysiological behavior of the neurons (under electrical currents) is modeled by ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2010.06.013
更新日期：2011-09-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:3D freehand Ultrasonography is a medical imaging technique that can be used to measure muscle and tendon morphological and structural properties, including volume, lengths and echo-intensity. These properties are clinically relevant in neurological disorders such as spastic cerebral palsy to mo...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2017.12.023
更新日期：2018-03-01 00:00:00
abstract：:The increasing use of computer systems for storing patient information in different hospitals, in different departments within the same hospital, in clinics and even in doctors' surgeries, is creating a problem in terms of the fragmentation of the patient record. The lack of any coordination or standardization in the ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(94)90080-9
更新日期：1994-06-01 00:00:00
abstract：:This paper explains the automated image-processing steps for the quantification of microvascular growth formation in the rat thoracic aortic ring model, an ex vivo model using excised rings of rat aorta embedded in a collagen matrix which produce outgrowths of microvessels. This model of angiogenesis is useful to stud...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2003.11.001
更新日期：2004-07-01 00:00:00
abstract：:A program in Turbo Pascal for robust analysis of variance is presented. A typical data file, the Pascal program listing and the corresponding output are given. ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(90)90074-j
更新日期：1990-12-01 00:00:00
abstract：:Accurate and fast approaches for automatic ECG data classification are vital for clinical diagnosis of heart disease. To this end, we propose a novel multistage algorithm that combines various procedures for dimensionality reduction, consensus clustering of randomized samples and fast supervised classification algorit...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2013.08.002
更新日期：2013-12-01 00:00:00
abstract：:When analyzing clinical data with binary outcomes, the parameter estimates and consequently the odds ratio estimates of a logistic model sometimes do not converge to finite values. This phenomenon is due to special conditions in a data set and known as 'separation'. Statistical software packages for logistic regressio...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/s0169-2607(02)00088-3
更新日期：2003-06-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Congenital anomalies are seen at 1-3% of the population, probabilities of which are tried to be found out primarily through double, triple and quad tests during pregnancy. Also, ultrasonographical evaluations of fetuses enhance detecting and defining these abnormalities. About 60-70% of the ano...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2018.06.010
更新日期：2018-09-01 00:00:00
abstract：:For microdosimetric calculations event-by-event Monte Carlo (MC) methods are considered the most accurate. The main shortcoming of those methods is the extensive requirement for computational time. In this work we present an event-by-event MC code of low projectile energy electron and proton tracks for accelerated mic...
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 veterinary anatomy tutoring system was developed by using Knowledge Pro, an object-oriented software development tool with hypermedia capabilities, and MS Access, a relational database. Communication between them is facilitated by using the Structured Query Language (SQL). The architecture of the system is based on ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(94)90045-0
更新日期：1994-02-14 00:00:00
abstract：:Advances in the area of computerized image analysis applied to mammography may have very important practical applications in automatically detecting asymmetries (masses, architectural distortions, etc.) between the two breasts. We have developed a fully automatic technique to detect the breast border and the nipple, t...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(96)01724-5
更新日期：1996-05-01 00:00:00
abstract：:An interactive Pascal program for use in the IBM-PC and compatible computers is presented. It simulates the activation of integral membrane proteins involved in ionic transport. The program allows variation of the number of transport proteins, ionic concentrations, permeability ratios, voltage dependence of permeabili...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(89)90089-8
更新日期：1989-05-01 00:00:00
abstract：:Model reduction techniques have shown to constitute a valuable tool for real-time simulation in surgical environments and other fields. However, some limitations, imposed by real-time constraints, have not yet been overcome. One of such limitations is the severe limitation in time (established in 500Hz of frequency fo...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2010.06.012
更新日期：2012-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Shape prior models play a vital role for segmentation in medical image analysis. These models are most effective when shape variations can be captured by a parametric distribution, and sufficient training data is available. However, in the absence of these conditions, results are invariably muc...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2020.105760
更新日期：2020-09-24 00:00:00
abstract：:A novel approach for the heartbeat and respiration detection based on optical interferometer and wavelet transform is proposed in this paper. Optical interferometer is a sensitive device that detects physical elongation of optical fibre due to external perturbations. Mechanical activity of cardiac muscle and respirati...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2013.03.003
更新日期：2013-07-01 00:00:00
abstract：:A computerized 24-h diet recall interview program (EPIC-SOFT) was developed for use in a large European multi-center study, namely the European Prospective Investigation into Cancer and Nutrition (EPIC). This program, which was adapted for each participating country and translated into nine languages, was developed to...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章,多中心研究
doi：10.1016/s0169-2607(98)00088-1
更新日期：1999-03-01 00:00:00
abstract：:The computer program MISCAN is developed for use in evaluation of mass screening for disease. The program uses Monte Carlo simulation. It produces output on the results of screening projects and on the effects of screening on morbidity and mortality on the individual and population level. The calculations are based on...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(85)90048-3
更新日期：1985-05-01 00:00:00
abstract：:We propose a specially optimized computer program for the user-independent calculation of the correlation dimension D and the largest Lyapunov exponent L of heart rate dynamics on the basis of only 1024 electrocardiographically recorded RR intervals (heartbeat intervals). The validity of our program was established by...
journal_title：Computer methods and programs in biomedicine
pub_type： 临床试验,杂志文章
doi：10.1016/0169-2607(95)01707-0
更新日期：1996-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Hepatocellular ballooning is an important histological parameter in the diagnosis of nonalcoholic steatohepatitis (NASH), and it is considered to be a morphological pattern that indicates the severity and the progression to cirrhosis and liver-related deaths. There remains uncertainty about the...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2020.105614
更新日期：2020-10-01 00:00:00
abstract：:The paper presents a computer-based assessment for facioscapulohumeral dystrophy (FSHD) diagnosis through characterisation of the fat and oedema percentages in the muscle region. A novel multi-slice method for the muscle-region segmentation in the T1-weighted magnetic resonance images is proposed using principles of t...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2015.03.006
更新日期：2015-06-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Intra-operative X-ray angiography, the current standard method for visualizing and diagnosing cardiovascular disease, is limited in its ability to provide essential 3D information. These limitations are disadvantages in treating patients. For example, it is a cause of lowering the success rate ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2020.105922
更新日期：2021-01-05 00:00:00
abstract：BACKGROUND AND OBJECTIVE:The paper presents a novel procedure based on 3D scanning and 3D modelling to automatically assess linear and volumetric measurements of an arm and to be further applied to patients affected by post breast cancer lymphedema. The aim is the creation of a virtual platform easily usable by medical...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2020.105795
更新日期：2021-01-01 00:00:00
abstract：:The closed loop control of blood glucose levels might help to reduce many short- and long-term complications of type 1 diabetes. Continuous glucose monitoring and insulin pump systems have facilitated the development of the artificial pancreas. In this paper, artificial neural networks are used for both the identifica...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2011.11.006
更新日期：2012-04-01 00:00:00
abstract：:The GALEN project is developing language independent concept representation systems as the foundations for the next generation of multilingual coding systems. It aims to support the flexibility required to cope with the diversity amongst medical applications, while ensuring the coherence necessary for integration and ...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/0169-2607(94)90020-5
更新日期：1994-10-01 00:00:00
abstract：:This corrigendum corrects the dimensions of partial differential equations in the paper [1], where these mistakes are occurred during typing processes. But the results in [1] does not affect the scientific and mathematical validity of the paper. ...
journal_title：Computer methods and programs in biomedicine
pub_type： 信件
doi：10.1016/j.cmpb.2019.105251
更新日期：2020-04-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Automatic osteosarcoma tumor segmentation on computed tomography (CT) images is a challenging problem, as tumors have large spatial and structural variabilities. In this study, an automatic tumor segmentation method, which was based on a fully convolutional networks with multiple supervised sid...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2017.02.013
更新日期：2017-05-01 00:00:00
abstract：:Cone beam computed tomography (CBCT) enables volumetric image reconstruction from 2D projection data and plays an important role in image guided radiation therapy (IGRT). Filtered back projection is still the most frequently used algorithm in applications. The algorithm discretizes the scanning process (forward projec...
journal_title：Computer methods and programs in biomedicine
pub_type： 杂志文章
doi：10.1016/j.cmpb.2011.12.002
更新日期：2012-11-01 00:00:00
