Towards a comprehensive medical language processing system: methods and issues.
PubMedPublished 1 January 1997Open access
Cynthia Friedman
Citations127
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
TL;DR
Methods and issues associated with an ongoing extension of MedLEE, an operational NLP system, from a limited domain to a domain that encompasses comprehensive clinical information are described.
Abstract
Natural language processing (NLP) systems can help solve the data entry problem by providing coded data from textual reports for clinical applications. A number of NLP systems have shown promise, but have not yet achieved wide-spread use for practical applications. In order to achieve such use, a system must have broad coverage of the clinical domain and not be restricted to limited applications. In addition, an NLP system must perform satisfactorily for real-world applications. This paper describes methods and issues associated with an ongoing extension of MedLEE, an operational NLP system, from a limited domain to a domain that encompasses comprehensive clinical information.
Keywords
Computer ScienceBiochemistry, Genetics and Molecular Biology
Journal of the American Medical Informatics AssociationA General Natural-language Text Processor for Clinical Radiology
783 Citations1994C Friedman, Philip O. Alderson +3 more
Development of a general natural-language processor that identifies clinical information in narrative reports and maps that information into a structured representation containing clinical terms, using radiology as the test domain.
Annals of Internal MedicineUnlocking Clinical Data from Narrative Reports: A Study of Natural Language Processing
338 Citations1995George Hripcsak, Carol Friedman +4 more
A general-purpose processor is evaluated that is intended to cover various clinical reports and converts narrative reports that are available in electronic form either through word processors or electronic scanning to coded descriptions that are appropriate for automated systems.
Journal of the American Medical Informatics AssociationKnowledge-based Approaches to the Maintenance of a Large Controlled Medical Terminology
293 Citations1994James J. Cimino, Paul D. Clayton +2 more
The Medical Entities Dictionary is a hybrid of terminology and knowledge that provides domain coverage, synonymy, consistency of views, explicit relationships, and multiple classification while preventing redundancy, ambiguity (homonymy) and misclassification.
Methods of Information in MedicineNatural Language Processing in Medicine: An Overview
152 Citations1996Peter Spyns
An overview is given of natural language processing applications in medicine and the most important and known international projects and to summarize their goals, principles, methods and results.
Natural Language EngineeringNatural language processing in an operational clinical information system
124 Citations1995C Friedman, George Hripcsak +3 more
How the natural language system was made compatible with the existing CIS is described and engineering issues which involve performance, robustness, and accessibility of the data from the end users' viewpoint are discussed.
PubMedIdentification of suspected tuberculosis patients based on natural language processing of chest radiograph reports.
96 Citations1996Nilesh Jain, Charles Knirsch +2 more
A retrospective study to determine if MedLEE can identify patients at risk for having tuberculosis (TB) based on their admission chest radiographs to determine patient eligibility for computerized clinical practice guidelines.
RadiologyComputerized extraction of coded findings from free-text radiologic reports. Work in progress.
92 Citations1990Peter J. Haug, David L. Ranum +1 more
A computerized data acquisition tool, the special purpose radiology understanding system (SPRUS), has been implemented as a module in the Health Evaluation through Logical Processing Hospital Information System.
Computer Methods and Programs in BiomedicineMENELAS: an access system for medical records using natural language
74 Citations1994Pierre Zweigenbaum
A first, experimental version of the MENELAS indexing prototype for French has been assembled, its function is to encode free text PDSs into both an internal representation and ICD-9-CM nomenclature codes.
Methods of Information in MedicineMedical Language Processing: Applications to Patient Data Representation and Automatic Encoding
64 Citations1995Naomi Sager, Margaret S. Lyman +2 more
Semantic categories developed for computer processing of narrative clinical reports are shown to be similar to the Medical Concepts used manually to extract data from narrative in Exercises of the Computer-based Patient Record Institute.
Computers and Biomedical ResearchDevelopment and Evaluation of a Computerized Admission Diagnoses Encoding System
53 Citations1996Michael L. Gundersen, Peter J. Haug +5 more
Evaluation results demonstrate the overall performance of this system to be reasonable, accurately encoding approximately 76% of admission diagnoses and the development and evaluation of a such a system designed to encode freetext admission diagnoses.
Journal of the American Medical Informatics AssociationA Schema for Representing Medical Language Applied to Clinical Radiology
47 Citations1994C Friedman, James J. Cimino +1 more
The schema developed is a formal representation for clinical concepts in radiology reports, and provides domain coverage that is particularly well-suited for natural-language processing of radiology for use in a decision support system.
PubMedConceptual data model for a central patient database.
38 Citations1991Stéphanie Johnson, C Friedman +4 more
Methods used to develop a conceptual model for a patient database forming the centerpiece of a clinical information system under development, and a method for mapping the model onto a relational design optimized for single patient retrievals are presented.
Methods of Information in MedicineRepresenting Clinical Narratives Using Conceptual Graphs
33 Citations1995Robert Baud, A M Rassinoux +7 more
This paper presents a multilingual implementation of Sowa's Conceptual Graphs, using French, English and German, and demonstrates the feasibility of an approach to natural Language Understanding where semantic aspects are dominant, in contrast to syntax driven methods.
PubMedAnalysis of medical texts based on a sound medical model.
27 Citations1995A M Rassinoux, Judith C. Wagner +4 more
The goal of this paper is to highlight the key issues of basing a medical language processing system on a sound semantic model and to illustrate the requirements and advantages of such a conceptual approach to the analysis process.
Journal of Medical SystemsComputer-assisted assessment of patient care in the hospital
14 Citations1988Elmer R. Gabrieli
Using his natural language medical text analyzing system, the author has computer-processed the discharge summary segment of the patient record and the output of the text analyzer is a list of medical facts.
Methods of Information in MedicineA Medical Text Analysis System for German - Syntax Analysis
10 Citations1991Paulina Pietrzyk
By extending considerably the LAG approach, most of the grammatical constructions occurring in the text material could be covered, and this article concentrates on the automated syntax analysis of German medical utterances.