Abstract:
BACKGROUND:The authors have been conducting text mining analyses (extraction of useful information from text) of Medline records, using Abstracts as the main data source. For literature-based discovery, and other text mining applications as well, all records in a discipline need to be evaluated for determining prior art. Many Medline records do not contain Abstracts, but typically contain Titles and Mesh terms. Substitution of these fields for Abstracts in the non-Abstract records would restore the missing literature to some degree. OBJECTIVES:Determine how well the information content of Title and Mesh fields approximates that of Abstracts in Medline records. APPROACH:Select historical Medline records related to Raynaud's Phenomenon that contain Abstracts. Determine the information content in the Abstract fields through text mining. Then, determine the information content in the Title fields, the Mesh fields, and the combined Title-Mesh fields, and compare with the information content in the Abstracts. RESULTS:Four metrics were used to compare the information content related to Raynaud's Phenomenon in the different fields: total number of phrases; number of unique phrases; content of factors from factor analyses; content of clusters from multi-link clustering. The Abstract field contains almost an order of magnitude more phrases than the other fields, and slightly more than an order of magnitude more unique phrases than the other fields. Each field used a factor matrix with 14 factors, and the combination of all 56 factors for the four fields represented 27 separate, but not unique, themes. These themes could be placed in two major categories, with two sub-categories per major category: Auto-immunity (antibodies, inflammation) and circulation (peripheral vessel circulation, coronary vessel circulation). All four sub-categories included representation from each field. Thus, while the focus of the representation of each field in each sub-category was moderately different, the four sub-category structure could be identified by analyzing the total factors in each field. In the cluster comparison phase of the study, the phrases used to create the clusters were the most important phrases identified for each factor. Thus, the factor matrix served as a filter for words used for clustering. While clusters were generated for all four fields, the Title hierarchy tended to be fragmented due to sparsity of the co-occurrence matrix that underlies the clusters. Therefore, the Title clusters were examined at only the lower levels of aggregation. The Abstract, Mesh, and Mesh + Title fields had the same first level taxonomy categories, auto-immunity and circulation. At the second level, the Abstract, Mesh, and Mesh + Title fields had the autoimmune diseases and antibodies sub-category in common. The Abstract and Mesh fields shared fascia inflammation as the other auto-immunity sub-category, while the other Mesh + Title sub-category focuses on vinyl chloride poisoning from industrial contact, and consequences of antineoplastic agents. However, in both cases, even though the words may be different, inflammation may be the common theme. CONCLUSIONS:For taxonomy generation, especially at the higher levels, each of the four fields has a similar thematic structure. At very detailed levels, the Mesh and Title fields run out of phrases relative to the Abstract field. Therefore, selection of field (s) to be employed for taxonomy generation depends on the objectives of the study, particularly the level of categorization required for the taxonomy. For information retrieval, or literature-based discovery, selection of the appropriate field again depends on the study objectives. If large queries, or large numbers of concepts or themes are desired, then the field with the largest number of technical phrases would be desirable. If queries or concepts represented by the more accepted popular terminology is adequate, then the smaller fields may be sufficient. Because of its established and controlled vocabulary, the Mesh field lags the Title or Abss the Title or Abstract fields in currency. Thus, the Title or Abstract fields would retrieve records with the most explicitly stated current concepts, but the Mesh field would capture a larger swath of fields that contained a concept of interest but perhaps had a wider range of specific terminology in the Abstract or Title text. In addition, this study provides the first validated estimate of the disparity in information retrieved through text mining limited to Titles and Mesh terms relative to entire Abstracts. As much of the older biomedical literature was entered into electronic databases without associated Abstracts, literature-based discovery exercises that search the older medical literature may miss a substantial proportion of relevant information. On the basis of this study, it may be estimated that up to a log order more information may be retrieved when complete Abstracts are searched.
journal_name
Int J Med Informjournal_title
International journal of medical informaticsauthors
Kostoff RN,Block JA,Stump JA,Pfeil KMdoi
10.1016/j.ijmedinf.2004.02.008subject
Has Abstractpub_date
2004-06-30 00:00:00pages
515-27issue
6eissn
1386-5056issn
1872-8243pii
S1386505604000620journal_volume
73pub_type
杂志文章abstract::A regional health information infrastructure is being developed in an internally self-governing country which is a dependent territory of the British Crown, is not part of the United Kingdom but is a member of the British Commonwealth. This country of about 70000 inhabitants (and significant numbers of visitors) withi...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2003.11.010
更新日期:2004-03-31 00:00:00
abstract:BACKGROUND:EMR system can provide three main types of benefits: it can solve the logistical organization problems associated with paper systems; it can improve the quality of professionals' clinical decisions; and it can improve physicians' return on their practices by reducing the cost of managing clinical information...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2014.06.003
更新日期:2014-08-01 00:00:00
abstract::The success of treatment of patients with cancer depends on establishing an accurate diagnosis. To this end, we have built a system called GEMS (gene expression model selector) for the automated development and evaluation of high-quality cancer diagnostic models and biomarker discovery from microarray gene expression ...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2005.05.002
更新日期:2005-08-01 00:00:00
abstract:OBJECTIVE:To develop a comprehensive instrument assessing quality of health-related web sites. METHODS:Phase I consisted of a literature review to identify constructs thought to indicate web site quality and to identify items. During content analysis, duplicate items were eliminated and items that were not clear, mean...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2005.07.034
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVE:To compare how nurses in two different paper-based systems perceive the impact of a computerized physician order entry (CPOE) system on their medication-related activities. SETTING:13 non-surgical, adult inpatient wards in a Dutch academic hospital. METHODS:Questionnaire survey of 295 nurses before and 304 ...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2008.06.012
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVE:There is a growing interest in using natural language processing (NLP) for healthcare-associated infections (HAIs) monitoring. A French project consortium, SYNODOS, developed a NLP solution for detecting medical events in electronic medical records for epidemiological purposes. The objective of this study was...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2018.06.002
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Falls are a serious health problem in old adults especially in nursing home residents and hospitalized patients. To prevent elderly from falling, sensors have been increasingly used in intramural care settings. However, there is no clear overview of the current used technologies and their results in fall pre...
journal_title:International journal of medical informatics
pub_type: 杂志文章,评审
doi:10.1016/j.ijmedinf.2013.06.001
更新日期:2013-09-01 00:00:00
abstract::The SHARE(1) project (http://www.eu-share.org) was asked to identify the key developments needed to achieve wide adoption and deployment of HealthGrids throughout Europe. The project was asked to organise these as milestones on a road map, so that all technical advances, social actions, economic investments and ethica...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2008.10.003
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND:Electronic approaches are becoming more widely used to obtain informed consent for research participation. Electronic consent (e-consent) provides an accessible and versatile approach to the consenting process, which can be enhanced with audio-visual and interactive features to improve participant engagement...
journal_title:International journal of medical informatics
pub_type: 杂志文章,评审
doi:10.1016/j.ijmedinf.2020.104271
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:To investigate: (1) the annotation time savings by various active learning query strategies compared to supervised learning and a random sampling baseline, and (2) the benefits of active learning-assisted pre-annotations in accelerating the manual annotation process compared to de novo annotation. MATERIALS ...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2017.08.001
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:With age reaction time, coordination and cognition tend to deteriorate, which may lead to gait impairments, falls and injuries. To reduce this problem in elderly and to improve health, well-being and independence, regular balance and strength exercises are recommended. However, elderly face strong barriers t...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2012.11.015
更新日期:2013-05-01 00:00:00
abstract::Can higher quality healthcare practices emerge from the development and use of a loosely integrated set of intranets? This paper examines that question through a series of empirical examples that draw on data from one healthcare organization that was part of a multi-year, multi-industry study of intranets. Some of thi...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2006.06.007
更新日期:2007-06-01 00:00:00
abstract:PURPOSE:The agent-oriented paradigm has emerged as a viable approach for the development of autonomic systems in the healthcare domain. This paper reviews representative works in this area in order to identify the main research lines and study their level of applicability. Moreover, from the analysis of those works and...
journal_title:International journal of medical informatics
pub_type: 杂志文章,评审
doi:10.1016/j.ijmedinf.2010.01.003
更新日期:2010-03-01 00:00:00
abstract:INTRODUCTION:This article describes the evaluation of a prototype speech-input interface to an anaesthesia patient record, conducted in a full-scale anaesthesia simulator involving six doctor-nurse anaesthetist teams. OBJECTIVE:The aims of the experiment were, first, to assess the potential advantages and disadvantage...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2007.08.007
更新日期:2008-07-01 00:00:00
abstract:OBJECTIVES:To examine whether simulation training enhanced self-efficacy of physicians and nurses who work in the outpatient setting to use electronic medical records, and whether the training changed their perceptions about the importance of electronic medical records (EMRs) in helping patients and improving patients'...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2015.02.003
更新日期:2015-06-01 00:00:00
abstract::To date there have been fewer than a dozen studies on the nature of, and contributory factors in, critical incidents (CI) in anaesthesia. The first of these, by Cooper and colleagues, showed that the vast majority of their CI involved human error [1]. Most recently, the on-going Australian Incident Monitoring Study (A...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/s1386-5056(97)00087-7
更新日期:1997-11-01 00:00:00
abstract::Telehealth refers to the integration of information, telecommunication, human-machine interface technologies and health technologies to deliver health care, to promote the heath status of the people and to create health. The Malaysian Telehealth Application will, on completion, provide every resident of the country an...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2003.11.023
更新日期:2004-03-31 00:00:00
abstract:BACKGROUND:Electronic Consultation (e-consults) can provide improved access, enhance patient and provider satisfaction, and reduce beneficiary travel expenses. We explored how e-consults were implemented across three specialty areas, diabetes (Diab), gastroenterology (GI), and neurosurgery (Neuro), at two Veterans Affa...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2017.09.005
更新日期:2017-12-01 00:00:00
abstract:INTRODUCTION:The availability of comprehensive and accurate medication history information in electronic medical records and through electronic prescribing provides the opportunity to create tailored interventions based on individuals' particular medication information needs. To meet the challenges of providing medicat...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2012.09.007
更新日期:2012-12-01 00:00:00
abstract::Effective security arrangements, which both protect and assure those information assets of healthcare providers, doctors and patients, are fundamental requirements in a modern electronic healthcare culture. At the heart of healthcare information systems in future will be those infrastructure components and services, w...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/s1386-5056(00)00109-x
更新日期:2000-11-01 00:00:00
abstract:BACKGROUND:The current systems of reporting waiting time to patients in public emergency departments (EDs) has largely relied on rolling average or median estimators which have limited accuracy. This study proposes to use machine learning (ML) algorithms that significantly improve waiting time forecasts. METHODS:By im...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2020.104303
更新日期:2021-01-01 00:00:00
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journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2019.104052
更新日期:2020-03-01 00:00:00
abstract::This paper reviews clinical decision support systems (CDSS) literature, with a focus on evaluation. The literature indicates a general consensus that clinical decision support systems are thought to have the potential to improve care. Evidence is more equivocal for guidelines and for systems to aid physicians with dia...
journal_title:International journal of medical informatics
pub_type: 杂志文章,评审
doi:10.1016/s1386-5056(01)00183-6
更新日期:2001-11-01 00:00:00
abstract:OBJECTIVE:The purpose of the research was to assess real-time location systems (RTLS) that have been implemented in U.S. hospitals. We examined the type of uses to which RTLS have been put, the degree of functionality of the various technologies and software, and the organizational effects of implementing RTLS. METHOD...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2012.07.001
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVE:To explore the use of user-centered design techniques for developing the requirements for an antibiotic decision support system (DSS) in an intensive care unit (ICU). DESIGN AND METHODOLOGY:The setting was a 21-bed mixed medical/surgical adult ICU. This was an observational study with unstructured interviews...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2006.07.011
更新日期:2007-10-01 00:00:00
abstract:PURPOSE:Medical language, as many technical languages, is rich with morphologically complex words, many of which take their roots in Greek and Latin--in which case they are called neoclassical compounds. Morphosemantic analysis can help generate definitions of such words. The similarity of structure of those compounds ...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2008.07.016
更新日期:2009-04-01 00:00:00
abstract:PURPOSE:Home-polysomnography (HPSG) has been proposed as a cost-effective alternative for obstructive sleep apnea (OSA) diagnosis. We assessed, in a feasibility study, whether telematic transmission using the Dream® and Sleepbox® technologies was associated with low HPSG failure rate. METHODS:Patients referred by ches...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2013.02.008
更新日期:2013-08-01 00:00:00
abstract:UNLABELLED:This study analyzed patient adoption of secure messaging to update medication list in an ambulatory care setting. The objective was to establish demographic differences between users and non-users of secure messaging for medications list update. Efficiency of secure messaging for the updates was compared to ...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2015.06.003
更新日期:2015-10-01 00:00:00
abstract:INTRODUCTION:Clinicians commonly use the modified Rankin Scale (mRS) and the Barthel Index (BI) to measure clinical outcome after stroke. These are potential targets in machine learning models for stroke outcome prediction. Therefore, the quality of the measurements is crucial for training and validation of these model...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/j.ijmedinf.2019.103988
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVE:Our aim is to develop reliable descriptions of various seizure types, which will be used as a basis for decision support. We use expert opinions in this process. In this contribution we evaluate the inter-participant agreement in the selection of frequently occurring symptoms for the description of seizure ty...
journal_title:International journal of medical informatics
pub_type: 杂志文章
doi:10.1016/s1386-5056(03)00047-9
更新日期:2003-07-01 00:00:00