PubMed Health⌕ Search

Biomedical subjects

A Flory

Publications and source records attributed to A Flory.

10 recordsLinked to original sources
PubMed2001

A four-dimensional approach to medical image retrieval.

Image retrieval is faced with different problems. Few proposed solutions consider the heterogeneity of user competence (e.g. physicians, researchers, students, etc.) and the necessity of a high expressive power for medical image description. This paper presents a solution designed for medical imaging retrieval. It consists of providing a four-dimensional approach able to integrate different views of the medical image, to deal with complex medical queries. Via use of the Spatial Knowledge Model, we propose hybrid (textual and visual) and customizable interfaces, appropriate for non-computer scientist users. Our prototype, accessible through the Web, has been tested by a group of medical students and physicians and gives very satisfactory results.

Computer Graphics↗
PubMed2001

Medical records and electronic documents: a proposal.

This article presents a global view of our proposal for a medical information system of the future. This information system focuses on patient medical records management. As most of the existing systems, it proposes to store information from patient records in a database. But records capture is different: we propose to use weakly-structured documents. Such documents contain paragraphs with some specific constraints represented by XML tags. The end-user writes new information under the form of weakly-structured documents. An internal system translates theses documents into new data for the internal database. Such a document-based user interface provides much more freedom to the end-user, and certainly reduces the distance between the physicians' way of working and the capture system.

Database Management Systems↗
PubMed2000

The electronic medical record: using documents for information capture.

This work concerns the management of electronic medical records. Classical systems based on databases do not satisfy end users, as the provided capture forms are never completely adapted to the patient case and to the physician's way of working. Electronic documents proved to be a better user interface paradigm, but still do not provide satisfying querying performance. Our work concerns the use of semi-structured documents as a user interface for a database-based system. The captured documents are analyzed so that information is extracted and used to fill in a database. We illustrate our proposition with the prototype we have developed and a short example.

Data Collection↗
PubMed1999

Nutritional status of haemodialysis patients: a French national cooperative study. French Study Group for Nutrition in Dialysis.

BACKGROUND: Despite the severity and the prognosis value of undernutrition in haemodialysed patients, no large study is available as yet in Europe. Hence, this French National Cooperative Study aimed to determine the prevalence of undernutrition and its relationship to dialysis efficacy. METHODS: Nutritional status was determined in 7123 patients (i.e. one-third of the French haemodialysis population) using body mass index (BMI), predialysis haemoglobin, albumin, pre-albumin, cholesterol, and also normalized protein catabolic rate (nPCR) and lean body mass (LBM) calculated from pre- and postdialysis urea and creatinine. Dialysis treatment was estimated from weekly dialysis time and KtV determination. RESULTS: Dialysis time was 12.4+/-2.7 h/week and KtV 1.36+/-0.36. BMI was below 20 kg/m2 in 24% and the observed/expected LBM ratio below 90% in 62%. Albumin, pre-albumin and nPCR were below the high-risk thresholds of 35 g/l, 300 mg/l and 1g/kg/day in 20%, 36% and 35% of patients, respectively. Pre-albumin was the most representative nutritional parameter. Albumin, pre-albumin and LBM correlated with nPCR. A dialysis time above 12 h/week was associated with higher BMI, albumin, pre-albumin and LBM. LBM was higher in patients with a KtV value >1.1. CONCLUSION: This study showed life-threatening undernutrition in 20-36% of the studied population, according to nutritional parameters. Protein intake (estimated by nPCR) and dialysis efficacy (estimated by dialysis time and KtV) appeared to be major determinants of nutritional status in this population.

Adult↗
PubMed1998

A hypermedia-based medical records management system.

This article presents a new way to manage computerized medical records, based on a totally-hypermedia system. As a matter of fact, the classical use of a database limits the necessary variability of the medical record, in function of both the patient profile and the care practitioner habits. The system we propose is based on a hospital Intranet, and on the XML language. This language allows the definition of semantic tags in hyperdocuments, and thus information retrieval is ensured through semantic tags indexation.

Computer Communication Networks↗
PubMed1998

A generic model for Internet-accessed databases in epidemiology: a nutritional application.

The Web technology has made the exchange of information among heterogeneous platforms possible with no added cost to end-users. Adding to this, it made it possible to access databases residing on servers in different geographic locations giving thus conceptors and programmers the possibility of making distributed applications with a fraction of the time needed before. This technology is therefore very well suited to medical applications which are normally multi-user, multiplatform, and data-intensive. In this paper, we present an application for epidemiological studies based on the Web technology and the reuse of common concepts in epidemiology to produce a generic model that can be parameterisable by the end-user to suit the needs of his study. This model is then applied to develop an application to optimise the collection and processing of nutritional data for a nation-wide epidemiological study concerning renal failure patients.

Databases, Factual↗
PubMed1994

An information system for epidemiology based on a computer-based medical record.

A new way is presented to build an information system addressed to problems in epidemiology. Based on our analysis of current and future requirements, a system is proposed which allows for collection, organization and distribution of data within a computer network. In this application, two broad communities of users-physicians and epidemiologists-can be identified, each with their own perspectives and goals. The different requirements of each community lead us to a client-service centered architecture which provides the functionality requirements of the two groups. The resulting physician workstation provides help for recording and querying medical information about patients and from a pharmacological database. All information is classified and coded in order to be retrieved for pharmaco-economic studies. The service center receives information from physician workstations and permits organizations that are in charge of statistical studies to work with "real" data recorded during patient encounters. This leads to a new approach in epidemiology. Studies can be carried out with a more efficient data acquisition. For modelling the information system, we use an object-oriented approach. We have observed that the object-oriented representation, particularly its concepts of generalization, aggregation and encapsulation, are very usable for our problem.

Computer Communication Networks↗
PubMedDate not supplied

[Proposals for a system of managing medical information].

Various systems are being used for managing medical information. They have several shortcomings. Among these, one can quote: -they do not overcome the complex medical terminology and its diversity; -they do not use a common medical language -there is no easy communication between the softwares used -and so on The proposed system takes into account the multiplicity of information sources within a hospital and the need for individual decision-making from care providers.

Delivery of Health Care↗