Common Standards for Quantitative Electrocardiography: Goals and Main Results

1990 ◽  
Vol 29 (04) ◽  
pp. 263-271 ◽  
Author(s):  
P. Arnaud ◽  
J. H. van Bemmel ◽  
R. Degani ◽  
P. W. Macfarlane ◽  
Chr. Zywietz ◽  
...  

AbstractComputer processing of electrocardiograms (ECGs) has over the last 15 years increased rapidly. Still, there are at present no standards for computer ECG interpretation. Different techniques are used not only for measurement and interpretation, but also for transmission and storage of data. In order to fill these gaps, a large international project, sponsored by the European Commission, was launched in 1980 to develop “Common Standards for Quantitative Electrocardiography (CSE)”. The main objective of the first CSE study was to reduce the wide variation in wave measurements currently obtained by ECG computer programs. The second study was started in 1985 and aimed at the assessment and improvement of diagnostic classification of ECG interpretation programs. To this end reference libraries of well documented ECGs have been developed and comprehensive reviewing schemes devised for the visual and computer analysis of ECGs. This task was performed by a board of cardiologists in a Delphi review process, and by 9 VCG and 10 standard 12-lead programs developed by university research groups and by industry. A third action was started in June 1989 to harmonize acquisition, encoding, interchange and storing of digital ECG data. The action thus performed have become internationally recognized milestones for the standardization of quantitative electrocardiography.

2008 ◽  
Vol 13 (1) ◽  
pp. 1-12
Author(s):  
Christopher R. Brigham ◽  
Robert D. Rondinelli ◽  
Elizabeth Genovese ◽  
Craig Uejo ◽  
Marjorie Eskay-Auerbach

Abstract The AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Sixth Edition, was published in December 2007 and is the result of efforts to enhance the relevance of impairment ratings, improve internal consistency, promote precision, and simplify the rating process. The revision process was designed to address shortcomings and issues in previous editions and featured an open, well-defined, and tiered peer review process. The principles underlying the AMA Guides have not changed, but the sixth edition uses a modified conceptual framework based on the International Classification of Functioning, Disability, and Health (ICF), a comprehensive model of disablement developed by the World Health Organization. The ICF classifies domains that describe body functions and structures, activities, and participation; because an individual's functioning and disability occur in a context, the ICF includes a list of environmental factors to consider. The ICF classification uses five impairment classes that, in the sixth edition, were developed into diagnosis-based grids for each organ system. The grids use commonly accepted consensus-based criteria to classify most diagnoses into five classes of impairment severity (normal to very severe). A figure presents the structure of a typical diagnosis-based grid, which includes ranges of impairment ratings and greater clarity about choosing a discreet numerical value that reflects the impairment.


Author(s):  
O. Semenenko ◽  
O. Vodchyts ◽  
V. Koverga ◽  
R. Lukash ◽  
O. Lutsenko

The introduction and active use of information transmission and storage systems in the Ministry of Defense (MoD) of Ukraine form the need to develop ways of guaranteed removal of data from media after their use or long-term storage. Such a task is an essential component of the functioning of any information security system. The article analyzes the problems of guaranteed destruction of information on magnetic media. An overview of approaches to the guaranteed destruction of information on magnetic media of different types is presented, and partial estimates of the effectiveness of their application are given by some generally accepted indicators of performance evaluation. The article also describes the classification of methods of destruction of information depending on the influence on its medium. The results of the analysis revealed the main problems of application of software methods and methods of demagnetization of the information carrier. The issue of guaranteed destruction of information from modern SSD devices, which are actively used in the formation of new systems of information accumulation and processing, became particularly relevant in the article. In today's conditions of development of the Armed Forces of Ukraine, methods of mechanical and thermal destruction are more commonly used today. In the medium term, the vector of the use of information elimination methods will change towards the methods of physical impact by the pulsed magnetic field and the software methods that allow to store the information storage device, but this today requires specialists to develop new ways of protecting information in order to avoid its leakage.


Author(s):  
K. Rajamohan ◽  
K.Hanumantha Rao ◽  
T. Malyadri

The physicians have to interpret this large amount of ECG data to search for only a few abnormal beats in the ECG. Physicians may overlook some abnormal cycles due to fatigue and human error in interpreting such a large amount of data. Therefore, there is an urgent need for an automatic ECG interpreting system to help to reduce the burden of ECG interpretation. This proposed system is expected to monitor the electrical activity of heart of the patient under critical care more conveniently and accurately for diagnosing.


2020 ◽  
Vol 9 (6) ◽  
pp. 1734 ◽  
Author(s):  
William T. Gunning ◽  
Meera Raghavan ◽  
Edward P. Calomeni ◽  
James N. Turner ◽  
Bodri Roysam ◽  
...  

One thousand and eighty patients, having prolonged bleeding times, frequent epistaxis, menorrhagia or easy bruising or other bleeding manifestations, and excluding those with von Willebrand’s disease, were evaluated for platelet dense granule deficiency. The mean diameter of platelet dense granules was determined for all patients using image analysis. Four hundred and ninety-nine had “classic” dense (delta) granule storage pool deficiency (δ-SPD). Five hundred and eighty-one individuals (53.8%) were found to have a normal mean number of dense granules, but for some of these patients, the dense granules were smaller than for the controls. Of the patients having a normal number of dense granules, 165 (28.4%) were found to have significantly smaller granules than the platelets obtained from the control subjects. Their average granule diameter was 123.35 ± 0.86 nm, that is more than three standard deviations below the mean of the control data. Total δ-granule storage pool volumes (TDGV)/platelet were calculated using these measurements. Individuals with δ-SPD had half the number of granules (2.25 ± 0.04 DG/PL) and storage pool volume (3.88 ± 1.06 × 106 nm3) when compared to our control data (4.64 ± 0.11 DG/PL; 10.79 × 106 nm3 ± 0.42). Individuals having a bleeding history but a normal average of small dense granules had a calculated storage pool volume statistically different than controls and essentially the same storage pool volume as patients with δ-SPD. We have identified a sub-classification of δ-SPD that we have defined as micro-granular storage pool deficiency (δ-MGSPD).


Author(s):  
Yassine El Borji ◽  
Mohamed Khaldi

This chapter focuses on aspects of the integration of serious games in the field of education by examining the quality of serious games intended to be integrated into education. This review process must take into account the coherence between all the aspects constituting the serious games as they are characterized by their diversity in terms of content and quality. By conducting a comparative study based on the various studies of evaluation and classification of serious games already carried out, the authors have focused their research effort in this chapter on the design of a tool for the evaluation of serious games quality intended to be used in the field of education. A tool that determines if the learning methods related to games are correlated with pedagogical aspects and contributes to the knowledge of serious games and promote their use in the educational sphere. The study offers two levels of evaluation, global and specific; the overall level allows a global judgment unlike the specific evaluation that ensures that there is always a balance between different aspects of serious games.


2012 ◽  
Author(s):  
Mark Pereira ◽  
Manabendra Maji ◽  
Ravi R. Pai ◽  
Samir B. V. R. ◽  
Seshadri R. ◽  
...  

1980 ◽  
Vol 34 (1) ◽  
pp. 75-82
Author(s):  
F. Klingenberg ◽  
H. R. Andris

Land information can be well depicted on plans and maps. However, as change and development take place the maps become antiquated and unreliable. A cadastre renovation program in Switzerland has made it possible to continue to use information depicted on old maps. Essentially, the program entails the establishment of a strong control network and accurately connecting features on the old maps to this control. A graphic-numerical interactive system has been established to deal with the data, and all points on the old map sheets have been digitized and coordinated.


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