Abstract:
:A new method is presented, different from usual methods, for the discussion of the results of computer ECG measurement programs, based on a new graphical evaluation method. The proposed "scatter-graphs" both highlight the main program results and facilitate the comparison between various wave-recognition algorithms. They allow the distinction between the reliability of an algorithm, which is its capacity to provide a maximum of measurements with a minimum amount of errors, and its precision, i.e., the standard deviation of the differences between its point estimates and the reference. The method proves to be a powerful tool for the discussion of individual, as well as the median program results in CSE Measurement Study. It allows to highlight limitations induced in performance assessment by the variability of the reference itself, and to state that the median program is at least as close to the "Gold Standard" as the median of the referees.
journal_name
Methods Inf Medjournal_title
Methods of information in medicineauthors
Morlet D,Rubel P,Willems JLsubject
Has Abstractpub_date
1990-09-01 00:00:00pages
413-23issue
4eissn
0026-1270issn
2511-705Xpii
90040413journal_volume
29pub_type
杂志文章abstract:OBJECTIVES:To identify factors associated with hospital length of stay (LOS) and to model variations in LOS within Diagnosis Related Groups (DRGs). METHODS:A proportional hazards frailty modelling approach is proposed that accounts for patient transfers and the inherent correlation of patients clustered within hospita...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract:OBJECTIVES:Both open- and closed-loop models of beat-to-beat cardiovascular control have been suggested. We tested whether the modelling yields different results with real data while assessing cardiopulmonary and baroreflex gains. METHODS:Two autoregressive models are described to resolve causal relationships between ...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
abstract::This article is part of a For-Discussion-Section of Methods of Information in Medicine about the paper "Computational Electrocardiography: Revisiting Holter ECG Monitoring" written by Thomas M. Deserno and Nikolaus Marx. It is introduced by an editorial. This article contains the combined commentaries invited to indep...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME15-15-0009
更新日期:2016-08-05 00:00:00
abstract:OBJECTIVES:This study aims to demonstrate the usability of discourse analyses as a means of evaluating medical informatics systems by examining one particular computer-based data-to-text system for delivering neonatal health care information. METHODS:Six textual summaries of clinical information, three produced by hum...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME0613
更新日期:2010-01-01 00:00:00
abstract::A rough-sets approach was applied to a data set consisting of animal study results and other compound characteristics to generate local and global (certain/possible) sets of rules for prediction of developmental toxicity in human subjects. A modified version of the rough-sets approach is proposed to allow the construc...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1993-02-01 00:00:00
abstract:OBJECTIVES:The main objective is to show current topics and future trends in the field of medical signal processing which are derived from current research concepts. Signal processing as an integrative concept within the scope of medical informatics is demonstrated. METHODS:For all examples time-variant multivariate a...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:The filtered backprojection is not able to cope with metal-induced inconsistencies in the Radon space which leads to artifacts in reconstructed CT images. A new algorithm is presented that reduces the drawbacks of existing artifact reduction strategies. METHODS:Inconsistent projection data are bridged by di...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.1160/ME9041
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVES:Hospital information systems (HIS) are the hospital's nervous system. The HIS are mostly grown over several years, dedicated to specific needs and comprise individual workarounds. Changes to such complex systems may cause a variety of differ-ent negative side-effects. In order to understand the nature of inc...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME9220
更新日期:2009-01-01 00:00:00
abstract::To examine inter-observer variation in the monitoring of patients with chronic disease, four nephrologists independently assessed 62 patients on maintenance hemodialysis. Deviation from normal was determined for adequacy of dialysis, protein intake, and metabolic state. The kappa-index, which allows to adjust for chan...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1990-03-01 00:00:00
abstract::For use in system development, a method based on both qualitative and quantitative data was employed to study the difficulties--the dilemmas--a general practitioner (GP) faces during daily consultations. Video recordings were used for stimulated recall of the consultation. From 46 consultations, 262 dilemmas were iden...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVE:We have been developing a decision support system that uses electronic clinical data and provides alerts to clinicians. However, the inference rules for such a system are difficult to write in terms of representing domain concepts and temporal reasoning. To address this problem, we have developed an ontology-...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME9126
更新日期:2008-01-01 00:00:00
abstract:INTRODUCTION:This article is part of the Focus Theme of Methods of Information in Medicine on "Big Data and Analytics in Healthcare". BACKGROUND:Hospital readmissions raise healthcare costs and cause significant distress to providers and patients. It is, therefore, of great interest to healthcare organizations to pred...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME14-02-0017
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVES:The healthcare sector is facing an enormous acceleration due to the emergence of new knowledge, drugs, devices and diseases. Professional competence, continuing education, service excellence and patient benefits can be facilitated by the developments in information and computer technology--computer literacy ...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVES:In our department, we have been using an Anesthesia Information Management System (AIMS) for five years. In this study, we tested to what extent data extracted from the AIMS could be suitable for the supervision and time-management of operating rooms. METHODS:From 1995 to 1999, all relevant data from 103,26...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract::The Read Thesaurus is a comprehensive user-led clinical vocabulary developed from earlier, and structurally simpler, versions of the Read Codes, with substantial input from United Kingdom health care professionals. A constituent template table underpins a range of functions, including semantic definition of concepts u...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1998-11-01 00:00:00
abstract::Pathfinder is an expert system that assists surgical pathologists with the diagnosis of lymph-node diseases. The program is one of a growing number of normative expert systems that use probability and decision theory to acquire, represent, manipulate, and explain uncertain medical knowledge. In this article, we descri...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1992-06-01 00:00:00
abstract::A few years ago, a new method of survival analysis, denoted period analysis, has been developed to derive more up-to-date estimates of long-term survival rates of cancer patients, but this method has rarely been applied so far. Using empirical examples from the Saarland Cancer Registry, we illustrate how seriously tra...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2001-07-01 00:00:00
abstract::Three ways are proposed to help the occupational physician in constructing a worker's job history or Curriculum Laboris (CL) with a PC. The quality and, therefore, the usefulness of any job history is greatly conditioned by the method and quality of data collection. The Curriculum Laboris method explained in a previou...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1990-03-01 00:00:00
abstract:OBJECTIVES:The main objective of this study is to learn more on the image use and search requirements of radiologists. These requirements will then be taken into account to develop a new search system for images and associated meta data search in the Khresmoi project. METHODS:Observations of the radiology workflow, ca...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME11-02-0025
更新日期:2012-01-01 00:00:00
abstract::A polygon-based graphical representation of laboratory test results using nonlinear scaling is described. It is argued that the nonlinearity of the scale and the use of colors in the representation facilitates interpretation of the test result in its relationship to the standard reference range and critical clinical d...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1991-04-01 00:00:00
abstract:OBJECTIVE:To explain the common conformance and interoperability testing requirements of eHealth applications through two case studies; one using a prominent eHealth messaging standard, namely HL7 v3 [1], and the other using Integrating the Healthcare Enterprise (IHE) [2] Profiles and to describe how these testing requ...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME09-02-0022
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Physical rehabilitation exergames (PREGs) are suitable for motivating patients toward completing treatments. Leap Motion (LM) is a motion sensor that may be useful for developing PREGs targeted at hands and fingers rehabilitation. Therefore, knowing the advantages and limitations of LM is relevant to underst...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.1055/s-0040-1715127
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVES:To discuss application areas of information technology in medicine and health care on the occasion of the opening of the Private Universität für Medizinische Informatik und Technik Tirol/University for Health Informatics and Technology Tyrol (UMIT) at Innsbruck, Tyrol, Austria. RESULTS AND CONCLUSIONS:Impor...
journal_title:Methods of information in medicine
pub_type:
doi:
更新日期:2002-01-01 00:00:00
abstract:INTRODUCTION:This article is part of the Focus Theme of Methods of Information in Medicine on "Biosignal Interpretation: Advanced Methods for Studying Cardiovascular and Respiratory Systems". OBJECTIVES:The aim of this study is to assess the reliability of the estimated Nocturnal Heart Rate (HR), recorded through a be...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME13-02-0053
更新日期:2014-01-01 00:00:00
abstract:INTRODUCTION:This article is part of the Focus Theme of METHODs of Information in Medicine on "Managing Interoperability and Complexity in Health Systems". BACKGROUND:SALUS project aims at building an interoperability platform and a dedicated toolkit to enable secondary use of electronic health records (EHR) data for ...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME13-02-0025
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:The UMLS assigns semantic types to all its integrated concepts. The semantic types are widely used in various natural language processing tasks in the biomedical domain, such as named entity recognition, semantic disambiguation, and semantic annotation. Due to the size of the UMLS, erroneous semantic type as...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME17-01-0120
更新日期:2018-02-01 00:00:00
abstract:OBJECTIVE:Pulmonary disorders are frequently characterized by the presence of adventitious sounds added to the breathing or base lung sound (BLS). The aim of this work was to assess the features of BLS in extrinsic allergic alveolitis (EAA) patients in comparison to healthy subjects, applying linear and nonlinear analy...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME12-01-0037
更新日期:2013-01-01 00:00:00
abstract::Continuous recording of intraluminal pressures for extended periods of time is currently regarded as a valuable method for detection of esophageal motor abnormalities. A subsequent automatic analysis of the resulting motility data relies on strict mathematical criteria for recognition of pressure events. Due to great ...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
abstract::A Bayesian decision support system was developed for the diagnosis of rheumatic disorders. Knowledge in this system is represented as evidential weights of findings. Simple weights were calculated as the logarithm of likelihood ratios on the basis of 1,000 consecutive patients from a rheumatological clinic. The effect...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1991-08-01 00:00:00
abstract:OBJECTIVE:To present a geometric ruler to determine predictive values of binary diagnostic test results from prevalence, sensitivity and specificity without calculation. METHODS:On logarithmic scale the relationships between pre-/post-test odds and the likelihood ratio as well as sensitivity, specificity and the likel...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME14-01-0091
更新日期:2015-01-01 00:00:00