Abstract:
:The use of a microcomputer in lung sound-analysis is described. The system was used experimentally in order to evaluate automated auscultation as a mean for improving the sensitivity of pulmonary health mass screening. The sound signals from four custom-made piezoelectric transducers, affixed at specific locations on the chest wall, and the breathing flow signal produced by a pneumotachograph were amplified, filtered and digitized simultaneously at 4000 Hz per channel for 512 ms. The acoustic data were transformed to the frequency domain to enable the calculation of the power spectra. Those were averaged over successive runs and displayed as log power vs. frequency. The operator could assess the convergence of the spectral pattern using the on-line graphics and calculated parameters, and store the data once the noise level had reached a preset level. This procedure was repeated during expiration, inspiration and on breath arrest. The results of the off-line analysis of the lung sounds, combined with pulmonary function tests and a questionnaire, were used to identify lung pathology.
journal_name
Comput Methods Programs Biomedjournal_title
Computer methods and programs in biomedicineauthors
Nissan M,Gavriely Ndoi
10.1016/0169-2607(93)90045-msubject
Has Abstractpub_date
1993-05-01 00:00:00pages
7-13issue
1eissn
0169-2607issn
1872-7565pii
0169-2607(93)90045-Mjournal_volume
40pub_type
杂志文章abstract::A physician's problem-solving performance improves with experience. The performance of most medical expert systems does not. The author has developed a diagnosis program for coronary disease that improves its performance by remembering and learning from cases that it has already solved. The program diagnoses commonly-...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/0169-2607(89)90070-9
更新日期:1989-10-01 00:00:00
abstract::Both sample entropy and approximate entropy are measurements of complexity. The two methods have received a great deal of attention in the last few years, and have been successfully verified and applied to biomedical applications and many others. However, the algorithms proposed in the literature require O(N(2)) execu...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2010.12.003
更新日期:2011-12-01 00:00:00
abstract::This article will focus on the actual needs enumerated in the University of Maryland at Baltimore's Health Sciences Library/Information Services program entitled, Health Sciences Library: A New Building for Information Services Including the Health Sciences Library. These needs fall into one of 3 categories: collectio...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/0169-2607(94)90120-1
更新日期:1994-09-01 00:00:00
abstract::MUSE--a new software tool for the interactive exploration of multivariate images and the development of image segmentation methods has been designed, implemented, and tested in a number of real application projects. The multivariate statistical classification and projection methods in MUSE can be used not only to anal...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/0169-2607(94)90128-7
更新日期:1994-03-01 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:BACKGROUND AND OBJECTIVE:For cancer detection from microscopic biopsy images, image segmentation step used for segmentation of cells and nuclei play an important role. Accuracy of segmentation approach dominate the final results. Also the microscopic biopsy images have intrinsic Poisson noise and if it is present in th...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2017.05.003
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Finite element based simulation has emerged as a powerful tool to analyse the tooth strength and its fracture characteristics. The aim of this study is to compare and evaluate the fracture resistance of immature teeth reinforcement with MTA, Biodentine and Bioaggregate as an apical plug and bac...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2020.105356
更新日期:2020-07-01 00:00:00
abstract::Research in muscle physiology has progressed in both the volume and complexity of data examined. Dependence on manual methods to analyze and condense this amount of information can present a narrow bottleneck to the efficient completion of a study, and can compromise the reliability of the results. We designed a gener...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/0169-2607(89)90161-2
更新日期:1989-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Fatigue is an important cause of operational errors, and human errors are the main cause of accidents. This study is an exploratory study in China. Field tests were conducted on heart rate variability (HRV) parameters and physiological indicators of fatigue among miners in high-altitude, cold a...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2020.105667
更新日期:2020-11-01 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
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVE:This paper presents a Radial Basis Functions Neural Network (RBFNN) based detection system, for automatic identification of Cerebral Vascular Accidents (CVA) through analysis of Computed Tomographic (CT) images. METHODS:For the design of a neural network classifier, a Multi Objective Genetic Algorithm (MOGA)...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2017.05.005
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:With ongoing interest in CNT nanofluids and materials in biotechnology, energy and environment, microelectronics, composite materials etc., the current investigation is carried out to analyze the effects of variable viscosity and thermal conductivity of CNT nanofluids flow driven by cilia indu...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2016.08.001
更新日期:2016-11-01 00:00:00
abstract::In cardiology, ultrasound is often used to diagnose heart disease associated with myocardial infarction. This study aims to develop robust segmentation techniques for segmenting the left ventricle (LV) in ultrasound images to check myocardium movement during heartbeat. The proposed technique utilizes machine learning ...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2020.105914
更新日期:2020-12-17 00:00:00
abstract::Image analysis is a rapidly evolving field with growing applications in science and engineering. In cancer research, it has played a key role in advancing techniques of major diagnostic importance, minimising human intervention and providing vital clinical information. Especially in the field of tissue microscopy, the...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2003.07.001
更新日期:2004-06-01 00:00:00
abstract::This article describes a computer program (HANOIPC3) based on the Tower of Hanoi game that, by analyzing a series of parameters during execution, allows a fast and accurate evaluation of data related to certain executive functions, especially planning, organizing and problem-solving. This computerized version has only...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2009.02.007
更新日期:2009-08-01 00:00:00
abstract:OBJECTIVE:The present investigation is concerned with hybrid mediated blood flow model through atherosclerotic bifurcated artery with slip effects by considering the properties of compliant walls. DESIGN/APPROACH:In human body, the circulatory system is made up of a network of blood vessels that include the bifurcatio...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2019.07.008
更新日期:2019-10-01 00:00:00
abstract::A dynamic simulation model for the epithelial cell structures of the intestine has been developed. The model is based on hypotheses found in the literature. It is shown that basic cell dynamics can be reproduced by simulation experiments. The simulation program is designed so that model output comparable with experime...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/0169-2607(85)90067-7
更新日期:1985-11-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:The input data distributions of EEG-based BCI systems can change during intra-session transitions due to nonstationarity caused by features covariate shifts, thus compromising BCI performance. We aimed to identify the most robust spatial filtering approach, among most used methods, testing them...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2020.105808
更新日期:2021-01-01 00:00:00
abstract::Vascular catheterization is a common procedure in clinical medicine. It is normally performed by a specialist using an X-ray fluoroscopic guide and contrast-media. In the present paper, an image-guided navigation system which indicates a path providing guidance to the desired target inside the vascular tree is describ...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2007.07.009
更新日期:2007-11-01 00:00:00
abstract:CONTEXT:People who have recently recovered from the threat of deteriorating coronavirus disease-2019 (COVID-19) have antibodies to the coronavirus circulating in their blood. Thus, the transfusion of these antibodies to deteriorating patients could theoretically help boost their immune system. Biologically, two challen...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2020.105617
更新日期:2020-11-01 00:00:00
abstract::Topological thinning is a valid but time-consuming method to calculate the centerline of human colon or other hollow organs accurately. An optimized 3D topological thinning method based on Look-up Table (LUT), which was proposed by Sadlier, proves to be effective in improving the efficiency on many occasions. However,...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2008.10.002
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Glaucoma, a worldwide eye disease, may cause irreversible vision damage. If not treated properly at an early stage, glaucoma eventually deteriorates into blindness. Various glaucoma screening methods, e.g. Ultrasound Biomicroscopy (UBM), Optical Coherence Tomography (OCT), and Heidelberg Retina...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2020.105717
更新日期:2020-12-01 00:00:00
abstract::This paper describes the processing and transformation of medical data from a clinical database to a statistical data matrix. Precise extraction and linking tools must be available for the desired data to be processed for statistical purposes. We show that flexible mechanisms are required for the different types of us...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/s0169-2607(00)00130-9
更新日期:2001-09-01 00:00:00
abstract::There are currently 501 hospitals and about 20,000 clinics in Taiwan. The National Health Insurance (NHI) system, which is operated by the NHI Administration, uses a single-payer system and covers 99.9% of the nation's total population of 23,000,000. Taiwan's NHI provides people with a high degree of freedom in choosi...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2015.04.013
更新日期:2015-08-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Empirical antimicrobial prescription strategies have been proposed to counteract the selection of resistant pathogenic strains. The respective merits of such strategies have been debated. Rather than comparing a finite number of policies, we take an optimization approach and propose a solution...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2020.105767
更新日期:2021-01-01 00:00:00
abstract::A parametric model for the ultrasound signals from blood and tissue is developed and a new imaging method, knowledge-based imaging, is defined. This method utilizes the likelihood ratio function to classify blood and tissue signals. The method separates blood and tissue signals by the difference in movement patterns i...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2009.03.012
更新日期:2009-10-01 00:00:00
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::Multiple correspondence analysis (MCA) is a multivariate method for analyzing multidimensional contingency tables. General software procedures to perform MCA are available. Among them SAS Proc CORRESP, SPAD CORMU procedure and the mca function of the MASS library in S-PLUS are probably the most used. However, CORRESP ...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2005.03.001
更新日期:2005-08-01 00:00:00
abstract::Traditional gait and fluoroscopy analysis of human movement are largely utilised but are still limited in registration, integration, synchronisation and visualisation capabilities. The present work exploits the features of a recently developed software tool based on multimodal display (Data Manager developed within th...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/j.cmpb.2005.04.007
更新日期:2005-09-01 00:00:00
abstract::Magnetic resonance angiography (MRA) offers a non-invasive approach to the acquisition of anatomically accurate human arterial structure. Combining the latest computational fluid dynamics (CFD) techniques with clinical data from MRA, the detailed haemodynamics information in the human circulation system can be obtaine...
journal_title:Computer methods and programs in biomedicine
pub_type: 杂志文章
doi:10.1016/s0169-2607(98)00008-x
更新日期:1998-06-01 00:00:00