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At least 55 records · Page 3Linked to original sources
PubMed1999

[Uniform access to clinical data in a distributed system. The radiology example].

PURPOSE: Providing medical reports onwards and ambulatory settings in electronic form can improve the quality of health care delivery. Radiology was chosen as an example to demonstrate how to implement uniform access to clinical data in a hospital. METHOD: Medical professionals at the university hospital in Munich, Grosshadern, have access to all radiological reports of their patients. Web browsers are used as a front end. A centralized administration of users and patients is in place. RESULTS: Centralized access control and patient selection guarantee uniform access to all applicable data via intranet and controls access rights. The high acceptance of this service is reflected by the high number of 150 requests per day. DISCUSSION: Access to radiological reports within the Grosshadern University Clinics was enabled via web browsers in a short time. The high acceptance of the system also proves its easy use. Integration of the system in a centralized user and patient identification system supports the unified access to clinical data.

Computer Security↗
PubMed1999

Java-based framework for the secure distribution of electronic medical records.

In this paper, we present a Java-based framework for the processing, storage and delivery of Electronic Medical Records (EMR). The choice of Java as a developmental and operational environment ensures operability over a wide-range of client-side platforms, with our on-going work emphasising migration towards Extensible Markup Language (XML) capable Web browser clients. Telemedicine in support of womb-to-tomb healthcare as articulated by the Multimedia Supercorridor (MSC) Telemedicine initiative--which motivated this project--will require high-volume data exchange over an insecure public-access Wide Area Network (WAN), thereby requiring a hybrid cryptosystem with both symmetric and asymmetric components. Our prototype framework features a pre-transaction authentication and key negotiation sequence which can be readily modified for client-side environments ranging from Web browsers without local storage capability to workstations with serial connectivity to a tamper-proof device, and also for point-to-multipoint transaction processes.

Computer Communication Networks↗
PubMed2002

The internet.

The growing use of email and the world wide web (WWW), by the public, academics, and clinicians-as well as the increasing availability of high quality information on the WWW-make a working knowledge of the internet important. Although this article aims to enhance readers' existing use of the internet and medical resources on the WWW, it is also intelligible to someone unfamiliar with the internet. A web browser is one of the central pieces of software in modern computing: it is a window on the WWW, file transfer protocol sites, networked newsgroups, and your own computer's files. Effective use of the internet for professional purposes requires an understanding of the best strategies to search the WWW and the mechanisms for ensuring secure data transfer, as well as a compendium of online resources including journals, textbooks, medical portals, and sites providing high quality patient information. This article summarises these resources, available to incorporate into your web browser as downloadable "Favorites" or "Bookmarks" from www.jnnp.com, where there are also freely accessible hypertext links to the recommended sites.

Attitude to Computers↗
PubMed1995

The Protein Disease Database of human body fluids: II. Computer methods and data issues.

The Protein Disease Database (PDD) is a relational database of proteins and diseases. With this database it is possible to screen for quantitative protein abnormalities associated with disease states. These quantitative relationships use data drawn from the peer-reviewed biomedical literature. Assays may also include those observed in high-resolution electrophoretic gels that offer the potential to quantitate many proteins in a single test as well as data gathered by enzymatic or immunologic assays. We are using the Internet World Wide Web (WWW) and the Web browser paradigm as an access method for wide distribution and querying of the Protein Disease Database. The WWW hypertext transfer protocol and its Common Gateway Interface make it possible to build powerful graphical user interfaces that can support easy-to-use data retrieval using query specification forms or images. The details of these interactions are totally transparent to the users of these forms. Using a client-server SQL relational database, user query access, initial data entry and database maintenance are all performed over the Internet with a Web browser. We discuss the underlying design issues, mapping mechanisms and assumptions that we used in constructing the system, data entry, access to the database server, security, and synthesis of derived two-dimensional gel image maps and hypertext documents resulting from SQL database searches.

Body Fluids↗
PubMed2002

RIS minus PACS equals film.

Web-based integration methods can be used to resolve a fundamental issue in the transition from film to a picture archiving and communication system (PACS): the identification of relevant prior studies only available on film. Even in the most ambitious conversions from a film-based environment to PACS, there are issues regarding prior studies not on PACS. Failure to compare with prior exams is one of the known risk factors for malpractice in radiology. While most commercial PACS systems today have some degree of RIS integration, knowledge of prior studies is usually limited to an awareness of studies in the PACS. On the other hand, most RIS systems today do not or cannot distinguish between studies on film and those in PACS. We made the observation, from a set theory perspective, that in general: Therefore we sought to create a system that would query both the RIS and PACS and reconcile the results using the above set operation. The query is initiated from a display station via the invocation of a Web browser installed on that station. The process of starting the browser is implemented using a scripting language provided by the workstation vendor, though the use of other mechanisms, such as the CCOW (Clinical Context Object Workgroup) or IHE (RSNA Integrated Healthcare Enterprise) interfaces, can be supported by this architecture. The medical record number, which identifies the current patient and is the primary parameter of the query, is passed as part of the URL (Universal Resource Locator) used to launch the browser. Once running, the browser connects to a Web server that hosts a JSP (Java Server Page) page that performs a DICOM query of the PACS and an HL7 query of the RIS, and then collates the results using the set operation described above. Both the DICOM and HL7 functionality are provided by Java-based toolkits developed in house. The results are returned to the client's browser as a standard HTML page with a tabular format detailing which studies are on PACS and which are available only on film. The responsiveness of the system in terms of time required to complete the two queries and display the results was measured. In addition, the number of diagnostic reports, whose retrieval was triggered by the results of the queries, was monitored to determine the overall performance and use of the system. This project demonstrates that, with minimal modification of commercial software, Web-based integration methods exist to enable patient-context sensitive queries from the diagnostic workstation that identify relevant prior studies that exist only on film and are unknown to the PACS. As a result radiologist workflow is enhanced by the elimination of the need to consult a physically separate system for this type of information. In addition, quality of service is improved by providing more accurate and easier identification of relevant prior studies.

Information Storage and Retrieval↗
PubMed2000

Starting to think digitally: evaluation of web browser-based presentation of images at a Rad Path conference in a traditional film-based environment.

Images have traditionally been projected from film to a large-screen television at the weekly Rad Path conference at University of Medicine and Dentistry of New Jersey-New Jersey Medical School. An alternative system was developed to digitally transfer computed tomography (CT) scans and magnetic resonance images (MRI) into a standard PC format, and present them at the conference in a hypertext markup language (HTML) document via a laptop computer and liquid crystal display (LCD) projector. Resident and attending physicians were given a questionnaire about the differences between the two modes of presentation. Their responses are presented here.

Attitude to Computers↗
PubMed1997

Early heart attack care on the World Wide Web.

UNLABELLED: The Internet is an excellent medium for storing and quickly disseminating large amounts of information on a global basis. The ability to query information "storehouses" makes it even more powerful for end users. This brief article demonstrates key features of the Early Heart Attack Care (EHAC) Web site. Basic navigation and search techniques are covered. The EHAC site contains one of the largest, if not the largest, collection of early heart attack care materials. It can be accessed easily, from virtually anywhere in the world, via the Internet using most standard Web browsers. The World Wide Web, with its graphic multimedia interface, is ideally suited for EHAC's mission of worldwide dissemination of early heart attack care concepts and information to both professionals and the community. DISCLAIMER: The Infobahn is still work in progress. It is not uncommon to hit traffic jams and dead-ends. We have tried to verify most links to the EHAC site but cannot assure their future maintenance.

Computer Communication Networks↗
PubMedDate not supplied

Enhanced CACTVS browser of the Open NCI Database.

A Web-based, graphical user interface has been developed to conduct rapid searches by numerous criteria in the more than 250,000 structures of the Open NCI Database. It is based on the chemistry information toolkit CACTVS. Nearly all structures and anticancer and anti-HIV screening data provided by NCI's Developmental Therapeutics Program have been included. This data set has been augmented by a large amount of additional, mostly computed, data, such as calculated log P values, predicted biological activities, systematically determined names, and others. Complex boolean searches are possible. Flexible substructure searches have been implemented. The user can conduct 3D pharmacophore queries in up to 25 conformations precalculated for each compound. Numerous output formats as well as 2D and 3D visualization options are provided. It is possible to export search results in various forms and with choices for data contents in the exported files, for structure sets ranging in size from a single compound to the entire database. Only a Web browser is needed to use this service, with a few plug-ins being useful but optional.

Databases, Factual↗
PubMed2003

PACS and Web-based image distribution and display.

Picture archiving and communication system (PACS) delivers images to the display workstations mostly through digital image communication in medicine (DICOM) protocols in radiology departments, and there are lots of medical applications in healthcare community needing to access PACS images for different application purposes. In this paper, we first reviewed a hospital-integrated PACS image data flow and typical diagnostic display software architecture, and discussed some Web technologies and Web-based image application server architectures, as well as image accessing and viewing methods in these architectures. Then, we present one approach to develop component-based image display architecture and use image processing and display component to build a diagnostic display workstation, and also, give a method to integrate this component into Web-based image distribution server to enable users using Web browsers to access, view and manipulate PACS DICOM images as easy as with PACS display workstations. Finally, we test and evaluate the performance of image loading and displaying by using the diagnostic display workstation and the component-based Web display system, the experimental results show that the image distribution and display performance from the Web server to browser clients is similar with that of the image loading and displaying procedure of the diagnostic workstation as more browser clients accessing the Web server at same time. We also discuss the advantages and disadvantages of the Web-based image distribution and display in different medical applications.

Computer Terminals↗
PubMed1997

Use of World Wide Web server and browser software to support a first-year medical physiology course.

We describe the use of a World Wide Web (Web) server to support a team-taught physiology course for first-year medical students. Our objectives were to reduce the number of formal lecture hours and enhance student enthusiasm by using more multimedia materials and creating opportunities for interactive learning. On-line course materials, consisting of administrative documents, lecture notes, animations, digital movies, practice tests, and grade reports, were placed on a departmental computer with an Internet connection. Students used Web browsers to access on-line materials from a variety of computing platforms on campus, at home, and at remote sites. To assess use of the materials and their effectiveness, we analyzed 1) log files from the server, and 2) the results of a written course evaluation completed by all students. Lecture notes and practice tests were the most-used documents. The students' evaluations indicated that computer use in class made the lecture material more interesting, while the on-line documents helped reinforce lecture materials and the textbook. We conclude that the effectiveness of on-line materials depends on several different factors, including 1) the number of instructors that provide materials; 2) the quantity of other materials handed out; 3) the degree to which computer use is demonstrated in class and integrated into lectures; and 4) the ease with which students can access the materials. Finally, we propose that additional implementation of Internet-based resources beyond what we have described would further enhance a physiology course for first-year medical students.

Computer Communication Networks↗
PubMedDate not supplied

Using plug-ins and Internet browser extensions.

Plug-ins and helper applications are programs that add additional capability to computer Web browsers. These browser extenders allow us to access the most current and most dynamic information on the Web: material that can assist us in fulfilling our professional role now and in the future. We can--and most of us will need to--add browser extensions to our desktop computers both at the time a Web site advises us that such an extension is needed, or we can load the most common browser extensions in advance (see "Essential Plug-Ins"). These steps may seem daunting, but are only inconveniences to our use of the Web as a vital resource and should not be seen as barriers. Happy hunting!

Computer User Training↗
PubMed1998

Broadsheet number 46: Internet for pathologists.

The Internet, and its most user-friendly manifestation, the World Wide Web (WWW), has undergone an exponential growth in the last few years. The volume of medical and pathology related information available has kept pace, making the Internet invaluable tool for the practising pathologist, supplementing traditional hard-copy textbooks and professional journals. E-mail, newsgroups, mailing lists, access to libraries, Medline, atlases, case studies and tutorials are only some of the additional features to which the net offers rapid access from your work-station. To make optimal use of electronic resources, a basic understanding of the hardware, software, communication protocols and information retrieval tools underlying the Internet is desirable. This paper is intended only as a brief introduction to what the Net has to offer to pathology in particular, and medicine in general, it is not meant to supplement the many excellent and more detailed reviews already available (see references). Parallel with the information explosion on the Net, concerns for the quality of posted material and possibility of misinformation have arisen. These issues will be addressed. Website addresses are given in parentheses in the text [e.g.: the website address of the Royal College of Pathologists of Australasia (RCPA) is given as (http:/(/)www.rcpa.edu.au/)] for easy retrieval on your Web browser. Because of the constantly evolving nature of the Web, I apologise in advance if some of the listed sites are no longer current.

Australia↗
PubMed2002

MDB: the Metalloprotein Database and Browser at The Scripps Research Institute.

The Metalloprotein Database and Browser (MDB; http://metallo.scripps.edu) at The Scripps Research Institute is a web-accessible resource for metalloprotein research. It offers the scientific community quantitative information on geometrical parameters of metal-binding sites in protein structures available from the Protein Data Bank (PDB). The MDB also offers analytical tools for the examination of trends or patterns in the indexed metal-binding sites. A user can perform interactive searches, metal-site structure visualization (via a Java applet), and analysis of the quantitative data by accessing the MDB through a web browser without requiring an external application or platform-dependent plugin. The MDB also has a non-interactive interface with which other web sites and network-aware applications can seamlessly incorporate data or statistical analysis results from metal-binding sites. The information contained in the MDB is periodically updated with automated algorithms that find and index metal sites from new protein structures released by the PDB.

Algorithms↗
PubMed2005

W3MCSim: an online and reconfigurable Monte Carlo simulator for interactive probabilistic/statistical modeling.

We have implemented a Monte Carlo simulator (W3MCSim) as an Internet software tool, primarily for interactive use by students, educators, life and other physical scientists, as well as other practitioners of probabilistic and statistical modeling. Interested users download, install and run W3MCSim by visiting the application website. This application incorporates three freely available Microsoft web technologies, namely the Internet Explorer web browser, the Component Object Model software framework and the JScript web page script interpreter. We define the software architecture here, as a web application model, and show how incorporation of these technologies provides an efficient solution to W3MCSim software deployment. We demonstrate the usability and versatility of this simulator with three distinct tutorial examples: simulating the sum of six-sided dice, estimating intersection frequency in "Buffon's needle problem", and testing an animal experiment design model a priori. We also show how the program components can be reconfigured into other programs.

Computer Simulation↗
PubMed1997

Implementation of a hypertext-based curriculum for emergency medicine on the World Wide Web.

This project reports the publication of a variety of existing curricular resources for emergency medicine on the global Internet in a format that allows hypertext links between related material, timely updates, and end-user feedback. Curricular elements were converted to Hypertext Markup Language with extensive links between related content. The completed document contains instructions for curriculum development, specific curricula for subspecialty areas within a residency, reading lists for subspecialty curricula, banks of images, and board-type questions with answers. Users are provided with a mechanism to provide immediate feedback to section editors with suggestions for changes, including new references. Access to all or part of the document can be controlled via passwords, but is potentially available to anyone with an Internet connection and a World Wide Web browser. The document may by viewed on the World Wide Web at: http:@www.brown.edu@Administration@emergency_Medicine@ curr.html.

Computer Communication Networks↗