AMIA Annual Symposium Proceedings

List of Papers (Total 3,840)

Will decision support in medications order entry save money? A return on investment analysis of the case of the Hong Kong hospital authority.

The computerized medications order entry system currently used in the public hospitals of Hong Kong does not have decision support features. Plans are underway to add decision support to this system to alert physicians on drug-allergy conflicts, drug-lab ...

Telemedicine in Western Africa: lessons learned from a pilot project in Mali, perspectives and recommendations.

to evaluate the feasibility, potential and risks of an internet-based telemedicine network in developing countries of Western Africa.a project for the development of a national telemedicine network in Mali was initiated in 2001, using internet-based technologies ...

Does GEM-encoding clinical practice guidelines improve the quality of knowledge bases? A study with the rule-based formalism.

The aim of this work was to determine whether the GEM-encoding step could improve the representation of clinical practice guidelines as formalized knowledge bases. We used the 1999 Canadian recommendations for the management of hypertension, chosen as ...

Analysis of a probabilistic record linkage technique without human review.

We previously developed a deterministic record linkage algorithm demonstrating sensitivities approaching 90% while maintaining 100% specificity. Substantially better performance has been reported using probabilistic linkage techniques; ...

Optimizing spectral power compression with respect to inference performance for recognition of tumor patterns in ultrasound images.

Imaging modalities are widely used to explore and diagnose diseases. Feature extraction methods are used to quantitatively describe and identify objects of interest in acquired images, typically involving data compression. The extracted features are subject ...

Are electronic medical records trustworthy? Observations on copying, pasting and duplication.

As routine use of on-line progress notes in US Department of Veterans Affairs facilities grew rapidly in the past decade, health information managers and clinicians began to notice that authors sometimes copied text from old notes into new notes. Other ...

Testing the generalizability of the ISO model for nursing diagnoses.

The purpose of this study was to explore whether the ISO reference terminology model for nursing diagnoses could be generalized to the MDS data set that, like nursing terminologies standardizes expressions of the concepts within and relevant to the domain ...

Enhancing quality of retrieval through concept edit history.

The NCI Thesaurus™ is a public domain description logic-based terminology produced by the National Cancer Institute. The NCI Thesaurus™ is used to support storage and retrieval of scientific, clinical and research administration data. ...

How the ICU follows orders: care delivery as a complex activity system.

In this paper, we use the theory of distributed cognition to understand work practices in terms of the behavior of an activity system. We do so by detailing the roles that local representations of information play in the social, cognitive, organizational, ...

Multiscale analysis of long time-series medical databases.

Data mining in time-series medical databases has been receiving considerable attention since it provides a way of revealing useful information hidden in the database; for example relationships between the temporal course of examination results and onset ...

The cognitive complexity of a provider order entry interface.

Computer-based provider order entry (POE) can reduce the frequency of preventable medical errors. However, overly complex interfaces frequently pose a challenge to users and impede clinical efficacy. We present a cognitive analysis of clinician interaction ...

Patient perceptions of physician use of handheld computers.

Handheld computers have advantages for physicians, including portability and integration into office workflow. However, negative patient perceptions of physician use of handheld computers in the examining room might limit integration.To survey patients’ ...

A proposed ontology for online healthcare surveys.

This paper results from the research efforts of the Clinical Informatics Research Group in building a generalized system for online survey implementation. Key to the success of any generalized survey system is a standard ontology for the differing components ...

Critical gaps in the world's largest electronic medical record: Ad Hoc nursing narratives and invisible adverse drug events.

The Veterans Health Administration (VHA), of the U.S. Department of Veteran Affairs, operates one of the largest healthcare networks in the world. Its electronic medical record (EMR) is fully integrated into clinical practice, having evolved over several ...

Dimension reduction for physiological variables using graphical modeling.

In intensive care, physiological variables of the critically ill are measured and recorded in short time intervals. The proper extraction and interpretation of the essential information contained in this flood of data can hardly be done by experience ...

Detection of pediatric respiratory and gastrointestinal outbreaks from free-text chief complaints.

We conducted a retrospective study to ascertain the potential of free-text chief complaints collected in pediatric emergency departments to serve as surveillance data for early detection of outbreaks.We determined that automatically coded chief complaint ...

Making the standard more standard: a data and query model for knowledge representation in the Arden syntax.

Arden Syntax is a Health Level Seven (HL7) standard that can be used to encode computable knowledge. However, dissemination of knowledge is hampered by lack of standard database linkages in Arden knowledge bases (KB). Moreover, the HL7 Reference Information ...

Randomized comparisons among health informatics students identify hypertutorial features as improving web-based instruction.

Hypertutorials optimize five features – presentation, learner control, practice, feedback, and elaborative learning resources. Previous research showed graduate students significantly and overwhelmingly preferred Web-based hypertutorials to conventional ...

A framework for the biomedical informatics curriculum.

The problem of developing a curriculum for biomedical informatics is highly dependent on how we choose to define and practice the field. Numerous authors have questioned how to position biomedical informatics along the continuum of formal, empirical and ...

Information warehouse as a tool to analyze Computerized Physician Order Entry order set utilization: opportunities for improvement.

A Computerized Physician order entry (CPOE) system was successfully implemented at the Ohio State University Medical Center (OSUMC) in February 2000. The electronic entry and use of order sets is designed to standardize patient care and improve efficiency ...

Discharge communiqué: use of a workflow byproduct to generate an interim discharge summary.

Medical problems left unresolved during hospitalizations (along with recommended outpatient evaluations, test results pending at discharge, and discharge medication regimens) are often documented in patients’ discharge summaries. However, studies ...

Deriving design recommendations through discount usability engineering: ethnographic observation and thinking-aloud protocol in usability testing for computer-based teaching cases.

Usability engineering often involves experimental evaluation designs carried out in special usability laboratories. Though becoming more popular in medical informatics, the approach is little used. Possibly this is because of the expense involved in set-up, ...

The UMLS Semantic Network and the Semantic Web.

The Unified Medical Language System® (UMLS®) , an extensive source of biomedical knowledge developed and maintained by the US National Library of Medicine (NLM) is being currently used in a wide variety of biomedical applications. The ...

A cognitive framework for understanding barriers to the productive use of a diabetes home telemedicine system.

Telemedicine has the potential to transcend geographic and socio-cultural barriers to the delivery of high quality health care to the medically underserved populations. However, there are significant cognitive and usability barriers. This paper presents ...

Clinical decision support provided within physician order entry systems: a systematic review of features effective for changing clinician behavior.

Computerized physician order entry (CPOE) systems represent an important tool for providing clinical decision support. In undertaking this systematic review, our objective was to identify the features of CPOE-based clinical decision support systems (CDSSs) ...