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Results 601 - 650 of 1008
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Schulz E B - - 1997
Checks of internal consistency in controlled medical vocabularies facilitate their development and assist refinement of the underlying terminological model. Two simple checks of consistency between knowledge in the subtype hierarchy and that in semantic definitions of concepts are described. It is proposed that these checks are a helpful adjunct to, ...
Jenders R A - - 1997
Because clinical databases vary in structure, access methods and vocabulary used to represent data, the Arden Syntax does not define a standard model for querying databases. Consequently, database queries are encoded in ad hoc ways and enclosed in "curly braces" in Medical Logic Modules (MLMs). However, the nonstandard representation of ...
Rassinoux A M - - 1997
Medical language is in essence highly compositional, allowing complex information to be expressed from more elementary pieces. Embedding the expressive power of medical language into formal systems of representation is recognized in the medical informatics community as a key step towards sharing such information among medical record, decision support, and ...
Johnson K B - - 1997
Ongoing improvements in the content of the Unified Medical Language System, coupled with the recent release of the Internet-based Knowledge Source Server (KSS), have prompted us to develop an interface between the KSS and our computer-based patient record. We confronted many challenges while developing a robust interface to an Internet-based ...
Hahn U - - 1997
We consider the role of textual structures in medical texts. In particular, we examine the impact the lacking recognition of text phenomena has on the validity of medical knowledge bases fed by a natural language understanding front-end. First, we review the results from an empirical study on a sample of ...
Prather J C - - 1997
Clinical databases have accumulated large quantities of information about patients and their medical conditions. Relationships and patterns within this data could provide new medical knowledge. Unfortunately, few methodologies have been developed and applied to discover this hidden knowledge. In this study, the techniques of data mining (also known as Knowledge ...
Dazzi L - - 1997
To provide high quality, shared, and distributed medical care, clinical and organizational issues need to be integrated. This work describes a methodology for developing a Patient Workflow Management System, based on a detailed model of both the medical work process and the organizational structure. We assume that the medical work ...
Elhanan G - - 1997
Traditional data-review displays are driven by the ancillary systems that produced the data. A different paradigm is being used at Columbia-Presbyterian Medical Center (CPMC) where a controlled medical vocabulary-the Medical Entities Dictionary (MED) is the driving force behind laboratory data-review displays. Using hierarchical and semantic networks the authors have constructed ...
Coleman J - - 1997
Converging technologies in the areas of networks, volume visualization algorithms, and computer performance have made possible the development of a new tool for collaboration, which extends the reach of health professionals, and other consumers of volumetric data around the world. TeleInViVo(tm) is a three-dimensional (3D) collaborative volume visualization tool for ...
Schulz E B - - 1997
The Read Thesaurus (Version 3 of the Read Codes) is a controlled medical vocabulary produced during the Clinical Terms Projects with the involvement of over 2,000 health care professionals from all United Kingdom specialties. In addition to allowing the transfer of clinical information in a meaningful way, it supports analysis ...
Baldwin F D - - 1997
Computer-based records systems for practice management are commonplace, but computer-based systems for monitoring patient care are not, and for good reason: Recording useful clinical information is far more complex than scheduling appointments and submitting bills. Even so, a lot of people are making progress toward computer-based medical records. Here are ...
Wyszynski D F - - 1997
This paper reviews the development of the field of medical informatics in Latin America. It also describes the preliminary results of a computer-based data management system, named AGUSTINA, which is comprised of maternal and infant data on 6195 deliveries that occurred between June 1990 and December 1995 in a hospital ...
Seka L P - - 1997
ADM-INDEX is a system for indexing and retrieval of Patients Discharge Summaries (PDSs) by using linguistic methods (morphologic, syntaxic and semantic processing). The ADM-INDEX knowledge base is a restructuring of a diagnostic aid knowledge base (ADM) in order to allow the linguistic analysis of medical texts. The ADM system is ...
Gu H - - 1997
Controlled medical vocabularies are useful in application areas such as medical information-systems and decision-support. However, such vocabularies are large and complex, and working with them can be daunting. It is important to provide a means for orienting users to the vocabulary's contents. This paper introduces a methodology for partitioning a ...
Sageder B - - 1997
The medical consultation system MedFrame/CADIAG-IV is a successor of the prior CADIAG projects. It is the result of a complete redesign to account for today's demands on state-of-the-art software. Its knowledge representation and inference process are based on fuzzy set theory and fuzzy logic. Fuzzy sets are used for conversions ...
Errera A - - 1997
In this work we present FENARETE, a software tool to design and distribute clinical protocols in an Inter/IntraNet framework. We consider a medical protocol as a clinical behaviour scheme, formally and clearly defined with sufficient details. Our work allows the knowledge content of any clinical protocol to be fully represented ...
Zieman Y L - - 1997
This paper describes a way to map users' queries to relevant Medical Subject Headings (MeSH terms) used by the National Library of Medicine to index the biomedical literature. The method, called SENSE (SEarch with New SEmantics), transforms words and phrases in the users' queries into primary conceptual components and compares ...
Leon M A - - 1997
To facilitate the application of neural networks in bio-medical sciences, we have developed a new client-server neural network concept that enhances user operation and reduces processing time. The client component allows users to enter all information required to create and control a complete neural network project. The server component provides ...
Burgun A - - 1996
The Unified Medical Language System (UMLS) contains and organizes a large number of terms from a variety of biomedical terminology systems. This study examines the relevance of the UMLS content and structures to the specific purpose of the conceptual representation of medical procedures. The MAOUSSC modelling is a compositional formalism ...
Phillips N I - - 1996
The Internet is a global computer network which has recently become accessible for many reasons to the general public. The growth in its use for entertainment purposes is now being mirrored by its application to medical interests requiring rapid communication. Neurosurgery as a speciality has a tradition of adapting quickly ...
O'Toole K - - 1996
Ten years ago the professional concern of the medical illustrator was limited to the fields of film-based image acquisition and traditional artists media. The development of affordable digital cameras and computer based illustration software is shifting the balance to computers so that currently both artists and photographers use similar tools. ...
Roy R T - - 1996
With the advent of the World Wide Web (WWW), we are now on the cusp of a revolution in computer technology that will dramatically enhance medical education. An historical analogy might be Johann Gutenberg's invention of movable type in the 1400's-radically decreasing the cost, time, and expertise required to reproduce ...
Hasman A - - 1996
Medical informatics is defined as the scientific discipline concerned with the systematic processing of data, information and knowledge in medicine and health care. The domain of medical informatics (including health informatics), its aim, methods and tools, and its relevance to other disciplines in medicine and health sciences are outlined. It ...
Madoff S A - - 1996
We studied the efficacy and feasibility of using computer-based instruction to provide medication information to hospitalized patients with acute psychotic conditions. Patients were randomly assigned to receive computer-based (n = 21) or personal instruction (n = 21); for the final analyses the computer group was expanded to include 13 patients ...
Rodgers R P - - 1996
Java, a new object-oriented computing language related to C++, is receiving considerable attention due to its use in creating network-sharable, platform-independent software modules (known as "applets") that can be used with the World Wide Web. The Web has rapidly become the most commonly used information-retrieval tool associated with the global ...
Dzeroski S - - 1996
Machine learning methods have been applied in a variety of medical domains in order to improve medical decision making. Improved medical diagnosis and prognosis can be achieved through automatic analysis of patient data stored in medical records, i.e., by learning from past experience. Given patient records with corresponding diagnoses, machine ...
Carlsson M - - 1996
Lack of an agreed infrastructure for terminology is identified as one of the major barriers to interchange of knowledge modules and integration of knowledge bases with other clinical information systems. The goal of the GALEN project is to bridge this gap between different terminology systems through the construction of a ...
Luft A R - - 1996
A database model for structure and access of theoretical medical knowledge is presented. The basic principle is the organization of knowledge in three dimensions: Each topic--first dimension--is explained with media--second dimension--in different versions of varying details--third dimension--suitable for different users. Every topic is one database entry. Topics are interconnected with ...
Spyns P - - 1996
This paper describes the current state of a medical language processor for Dutch. The goal is to implement a language specific front-end compatible with some existing applications that aim at the intelligent extraction and processing of information from patient discharge summaries. A complete chain for processing and understanding Dutch medical ...
In the past, new medical services were instituted whenever physicians or hospitals perceived the need or sensed the interest of the medical community. As a result, some truly effective procedures were widely and rapidly disseminated to the public, while less effective procedures were equally widely and rapidly adapted. Computer based ...
Haux R - - 1996
We report on a prospective, prolective observational study, supplying information on how physicians and other health care professionals retrieve medical knowledge on-line within the Heidelberg University Hospital information system. Within this hospital information system, on-line access to medical knowledge has been realised by installing a medical knowledge server in the ...
Dimitrov I - - 1996
Each science is identified with the questions it raises with respect to its object of study. This paper discussed the formulation of the basic questions of medical informatics. From a historical point of view, it first dealt with the problems of medical computing. Thereby, three classical questions arose: How can ...
Rothwell D J - - 1996
SNOMED is an inventory of medical terms and concepts. Each concept has a unique representation, it's primary termcode. The primary termcode carries hierarchical and inheritable information about each concept it represents. Additional hierarchical and inheritable information is carried by cross references linked to each concept. The cross references provide the ...
Tuttle M S - - 1996
An architecture built from five software components -a Router, Parser, Matcher, Mapper, and Server -fulfills key requirements common to several point-of-care information and knowledge processing tasks. The requirements include problem-list creation, exploiting the contents of the Electronic Medical Record for the patient at hand, knowledge access, and support for semantic ...
Hahn U - - 1996
An approach to knowledge-based understanding of realistic texts from the medical domain (viz. findings of gastro-intestinal diseases) is presented. We survey major methodological features of an object-oriented, fully lexicalized, dependency-based grammar model which is tightly linked to domain knowledge representations based on description logics. The parser adheres to the principles ...
Starren J - - 1996
As a result of improvements in Medical Language Processing, the availability of categorical information (such as diagnoses or radiology findings) is increasing rapidly. This increased availability has created a need for more efficient methods for computer presentation. One method for developing such presentations would be to adapt the hand-written notation ...
Shortliffe E H - - 1996
The InterMed Collaboratory is an interdisciplinary project involving six participating medical institutions. There are two broad mandates for the effort. The first is to further the development, sharing, and demonstration of numerous software and system components, data sets, procedures and tools that will facilitate the collaborations and support the application ...
Hersh W R - - 1996
A major impediment to the full benefit of electronic medical records is the lack of a comprehensive clinical vocabulary. Most existing vocabularies do not allow the full expressiveness of clinical diagnoses and findings that are often qualified by modifiers relating to severity, acuity, and temporal factors. One reason for the ...
Mays E - - 1996
The K-Rep system, based on description logic, is used to represent and reason with large and expressive controlled medical terminologies. Expressive concept descriptions incorporate semantically precise definitions composed using logical operators, together with important non-semantic information such as synonyms and codes. Examples are drawn from our experience with K-Rep in ...
Zeng Q - - 1996
This paper presents our work in automated mapping of medical vocabularies to the National Library of Medicine's Unified Medical Language System (UMLS). We used the UMLS Knowledge Source (KS) tool to map terms from several sources to UMLS Metathesaurus concepts. We compared performance of the KS tools with our own ...
Surján G - - 1996
Concepts are seen as building elements of more compositional information objects in medicine. Consequently, representation of medical concepts plays a critical role in any information system. The authors present some of the key problems which need solution, such as definition of medical domain, analysis of internal structure, different subsets of ...
Campbell K E - - 1996
Current controlled medical terminologies fall short of the needs of informatics application developers. To overcome the limitations of current medical terminologies, many groups are independently enhancing existing terminologies to meet their local needs. With proper computer-based support, local enhancements can be used as evolutionary stepping stones toward a convergent medical ...
Eagon J C - - 1996
To better understand how VA clinicians use medical vocabulary in every day practice, we set out to characterize terms generated in the Problem List module of the VA's DHCP system that were not mapped to terms in the controlled-vocabulary lexicon of DHCP. When entered terms fail to match those in ...
Spackman K A - - 1996
We evaluated the ability of two natural language parsers, CLARIT and the Xerox Tagger, to identify simple, noun phrases in medical discharge summaries. In twenty randomly selected discharge summaries, there were 1909 unique simple noun phrases. CLARIT and the Xerox Tagger exactly identified 77.0% and 68.7% of the phrases, respectively, ...
Shouzhong X - - 1995
Using a high-density knowledge representation method designed by us, we have developed the Enormous Knowledge Base of Disease Diagnosis Criteria (EKBDDC). It contains diagnostic criteria of 1001 diagnostic entities and describes nearly 4000 items of diagnostic indicators. It is the core of a huge medical project--Electronic Brain Medical Erudite (EBME). ...
Dojat M - - 1995
Knowledge reuse is now a critical issue for most developers of medical knowledge-based systems. As a rule, reuse is addressed from an ambitious, knowledge-engineering perspective that focuses on reusable general purpose knowledge modules, concepts, and methods. However, such a general goal fails to take into account the specific aspects of ...
Schoonjans F - - 1995
In recent years, the use and abuse of statistics in the medical literature has extensively been reviewed. Amongst others, the importance of the P-value has been challenged and the use of misleading graphics, including 3-dimensional displays, has been criticized. The ease of access to more complex statistical procedures, since the ...
Lowry F - - 1995
Computers are poised to become key players in the delivery of health care, but are physicians ready for them? A recent conference on medical communication in the electronic era examined the potential of computers to assist in diagnosis, provide continuing medical education, disseminate evidence and research findings, and simplify practice ...
Ebell M H - - 1995
Hand-held computers such as the Apple Newton MessagePad, HP 200LX, Psion 3a, and Franklin DBS-2 are now powerful enough to be useful to family physicians in their care of patients. Each fits in a laboratory coat pocket, weighs a pound or less, costs less than $700, turns on instantly, and ...
Hohnloser J H - - 1995
We present data from a controlled experiment with computerized browsing and encoding tool. Eighteen practicing clinicians were asked to extract medical concepts from narrative exercise cases using two approaches--traditional and computer-assisted use of ICD-9. Our results indicate that completeness of coding can be improved by up to 55% using a ...
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