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At least 271 records · Page 15Linked to original sources

PubMed2004

Collecting responses through Web page drag and drop.

This article describes how to collect responses from experimental participants using drag and drop on a Web page. In particular, we describe how drag and drop can be used in a text search task in which participants read a text and then locate and categorize certain elements of the text (e.g., to identify the main claim of a persuasive paragraph). Using this technique, participants respond by clicking on a text segment and dragging it to a screen field or icon. We have successfully used this technique in both the argument element identification experiment that we describe here and a tutoring system that we created to teach students to identify source characteristics while reading historical texts (Britt, Perfetti, Van Dyke, & Gabrys, 2000). The implementation described here exploits the capability of recent versions of Microsoft's Internet Explorer Web browser to handle embedded XML documents and drag and drop events.

Computer-Assisted Instruction↗

PubMed2004

[Development of a radiation therapy information system and linked medical image server using techniques of WWW-DB].

We developed management system for medical information such as radiation therapy information and associated medical image information. Features of the system are to browse medical information with web browser through network. The system was constructed by open source software, which made proprietary client software unnecessary. Clinical studies suggested that the system proved useful in terms of paperless managemet. In addition, useful features are visibility and portability to browse medical information using PDA (Personal Data Assistant) via wireless LAN (Local Area Network). We also proposed a new approach which can contribute to remote areas by providing medical information using the Internet.

Computer Communication Networks↗

PubMed1998

Web-based resources for clinical protocol management.

The data monitoring regulatory procedures, and administrative tasks associated with protocol management have become increasingly complex. Relational database technology and Internet-based connectivity offer resources to improve the quality and efficiency of protocol operations. At Fox Chase Cancer Center, we have developed a suite of database applications for protocol management and tracking of patient accrual. All data transactions and reporting occur through a graphical web browser interface using standard Internet technology. Security and confidentiality have been addressed through encryption, user authentication, address restriction, and database authority. Database management has been tightly integrated with protocol operations to avoid duplication of resources and effort. Data query functions also extend to other institutional resources, such as tumor registry and the hospital clinical laboratory, to further reduce the need for redundant data storage. Newer components, such as chemotherapy orders and toxicity reporting, have been incorporated in a modular fashion. Although custom software development can be expensive and time-consuming, it offers the best opportunity for successful integration with existing resources, staff, and procedures, as well as collaboration with other institutions.

Clinical Protocols↗

PubMedDate not supplied

The coming battle for customer information.

Companies collect information about customers to target valuable prospects more effectively, tailor their offerings to individual needs, improve customer satisfaction, and identify opportunities for new products or services. But managers' efforts to capture such information may soon be thwarted. The authors believe that consumers are going to take ownership of information about themselves and start demanding value in exchange for it. As a result, negotiating with customers for information will become costly and complex. How will that happen? Consumers are realizing that they get very little in exchange for the information they divulge so freely through their commercial transactions and survey responses. Now new technologies such as smart cards, World Wide Web browsers, and personal financial management software are allowing consumers to view comprehensive profiles of their commercial activities-- and to choose whether or not to release that information to companies. Their decision will hinge, in large part, on what vendors offer them in return for the data. Consumers will be unlikely to bargain with vendors on their own, however. The authors anticipate that companies they call infomediaries will broker information to businesses on consumers' behalf. In essence, infomediaries will be the catalyst for people to start demanding value in exchange for information about themselves. And most other companies will need to rethink how they obtain information and what they do with it if they want to find new customers and serve them better.

Community Participation↗

PubMed1998

Web-based segmentation and display of three-dimensional radiologic image data.

In many clinical circumstances, viewing sequential radiological image data as three-dimensional models is proving beneficial. However, designing customized computer-generated radiological models is beyond the scope of most physicians, due to specialized hardware and software requirements. We have created a simple method for Internet users to remotely construct and locally display three-dimensional radiological models using only a standard web browser. Rapid model construction is achieved by distributing the hardware intensive steps to a remote server. Once created, the model is automatically displayed on the requesting browser and is accessible to multiple geographically distributed users. Implementation of our server software on large scale systems could be of great service to the worldwide medical community.

Algorithms↗

PubMed1998

The development of digital library system for drug research information.

The sophistication of computer technology and information transmission on internet has made various cyber information repository available to information consumers. In the era of information super-highway, the digital library which can be accessed from remote sites at any time is considered the prototype of information repository. Using object-oriented DBMS, the very first model of digital library for pharmaceutical researchers and related professionals in Korea has been developed. The published research papers and researchers' personal information was included in the database. For database with research papers, 13 domestic journals were abstracted and scanned for full-text image files which can be viewed by Internet web browsers. The database with researchers' personal information was also developed and interlinked to the database with research papers. These database will be continuously updated and will be combined with world-wide information as the unique digital library in the field of pharmacy.

Database Management Systems↗

PubMed1998

A hospital-wide distributed PACS based on intranet.

A hospital-wide Picture Archiving and Communication System (PACS) is currently under development at the University Hospital of Geneva. After a first implementation including two oneterabyte optical libraries, the system is expanded to integrate all the imaging modalities of the hospital. The new storage requirement is 10 terabytes to cover three year archive. A large distributed image archive has been designed including new archive servers for long-term storage and display servers for medium-term storage. The acquisition, archive and distribution cycles are performed using separated networks combining Fast Ethernet and Ethernet. Image files are distributed to the wide-hospital using a prefetching strategy or an Intranet server, RADIOLAB. The first mode takes advantage of the fully integrated hospital information system DIOGENE 2 to allow the automatic retrieval of studies in advance. The second mode provides a convivial study selection from any conventional WWW (World Wide Web) browser. Image files are then transmitted to the user's display station using HTTP (HyperText Transfer Protocol) and handled by OSIRIS software, which acts as a helper or viewer. Such a system is expected to meet the time requirement, which is less than three seconds per image.

Computer Communication Networks↗

PubMed1998

Web based 3-D medical image visualization on the PC.

With the recent advance of Web and its associated technologies, information sharing on distribute computing environments has gained a great amount of attention from many researchers in many application areas, such as medicine, engineering, and business. One basic requirement of distributed medical consultation systems is that geographically dispersed, disparate participants are allowed to exchange information readily with each other. Such software also needs to be supported on a broad range of computer platforms to increase the softwares accessibility. In this paper, the development of world-wide-web based medical consultation system for radiology imaging is addressed to provide platform independence and greater accessibility. The system supports sharing of 3-dimensional objects. We use VRML (Virtual Reality Modeling Language), which is the defacto standard in 3-D modeling on the Web. 3-D objects are reconstructed from CT or MRI volume data using a VRML format, which can be viewed and manipulated easily in Web-browsers with a VRML plug-in. A Marching cubes method is used in the transformation of scanned volume data sets to polygonal surfaces of VRML. A decimation algorithm is adopted to reduce the number of meshes in the resulting VRML file. 3-D volume data are often very large in size, hence loading the data on PC level computers requires a significant reduction of the size of the data, while minimizing the loss of the original shape information. This is also important to decrease network delays. A prototype system has been implemented (http://cybernet5.snu.ac.kr/-cyber/mrivrml .html), and several sessions of experiments are carried out.

Algorithms↗

PubMed1999

Interactive volume visualization using "intelligent movies".

High quality visualization of medical volume models as performed by the VOXEL-MAN and similar systems is still too time consuming and the interaction complicated when sophisticated tools like dissection are used. We hence developed a new paradigm allowing to create simpler derivatives of the model, called "intelligent movies". These are in QuickTime or QuickTime VR format which allow interactive exploration with two degrees of freedom. As a decisive novelty, we extended it by a pixelwise link to the knowledge base which may be queried in the image context. Thus scenes emphasizing a selected aspect of the volume model may be created as intelligent movies, which a user (referring physician, student) can explore largely with the functionality of VOXEL-MAN, but in real time--on any standard PC--and also via a JAVA applet within web browsers. This is shown with the example of 3D interactive anatomical atlases and clinical cases.

Anatomy, Cross-Sectional↗

PubMed1999

Multimedia explorer: image database, image proxy-server and search-engine.

Multimedia plays a major role in medicine. Databases containing images, movies or other types of multimedia objects are increasing in number, especially on the WWW. However, no good retrieval mechanism or search engine currently exists to efficiently track down such multimedia sources in the vast of information provided by the WWW. Secondly, the tools for searching databases are usually not adapted to the properties of images. HTML pages do not allow complex searches. Therefore establishing a more comfortable retrieval involves the use of a higher programming level like JAVA. With this platform independent language it is possible to create extensions to commonly used web browsers. These applets offer a graphical user interface for high level navigation. We implemented a database using JAVA objects as the primary storage container which are then stored by a JAVA controlled ORACLE8 database. Navigation depends on a structured vocabulary enhanced by a semantic network. With this approach multimedia objects can be encapsulated within a logical module for quick data retrieval.

Computer Graphics↗

PubMed2000

[Intranet-based integrated information system of radiotherapy-related images and diagnostic reports].

PURPOSE: To use an intranet technique to develop an information system that simultaneously supports both diagnostic reports and radiotherapy planning images. METHODS: Using a file server as the gateway a radiation oncology LAN was connected to an already operative RIS LAN. Dose-distribution images were saved in tagged-image-file format by way of a screen dump to the file server. X-ray simulator images and portal images were saved in encapsulated postscript format in the file server and automatically converted to portable document format. The files on the file server were automatically registered to the Web server by the search engine and were available for searching and browsing using the Web browser. RESULTS: It took less than a minute to register planning images. For clients, searching and browsing the file took less than 3 seconds. Over 150,000 reports and 4,000 images from a six-month period were accessible. Because the intranet technique was used, construction and maintenance was completed without specialty. CONCLUSION: Prompt access to essential information about radiotherapy has been made possible by this system. It promotes public access to radiotherapy planning that may improve the quality of treatment.

Computer Communication Networks↗

PubMed2000

Creating local bibliographic databases: new tools for evidence-based health care.

The Internet has created new opportunities for librarians to present literature search results to clinicians. In order to take full advantage of these opportunities, libraries need to create locally maintained bibliographic databases. A simple method of creating a local bibliographic database and publishing it on the Web is described. The method uses off-the-shelf software and requires minimal programming. A hedge search strategy for outcome studies of clinical process interventions is created, and Ovid is used to search MEDLINE. The search results are saved and imported into EndNote libraries. The citations are modified, exported to a Microsoft Access database, and published on the Web. Clinicians can use a Web browser to search the database. The bibliographic database contains 13,803 MEDLINE citations of outcome studies. Most searches take between four and ten seconds and retrieve between ten and 100 citations. The entire cost of the software is under $900. Locally maintained bibliographic databases can be created easily and inexpensively. They significantly extend the evidence-based health care services that libraries can offer to clinicians.

Costs and Cost Analysis↗

PubMed2000

An end-to-end secure patient information access card system.

The rapid development of the Internet and the increasing interest in Internet-based solutions has promoted the idea of creating Internet-based health information applications. This will force a change in the role of IC cards in healthcare card systems from a data carrier to an access key medium. At the Medical Informatics Department of Kyoto University Hospital we are developing a smart card patient information project where patient databases are accessed via the Internet. Strong end-to-end data encryption is performed via Secure Socket Layers, transparent to transmit patient information. The smart card is playing the crucial role of access key to the database: user authentication is performed internally without ever revealing the actual key. For easy acceptance by healthcare professionals, the user interface is integrated as a plug-in for two familiar Web browsers, Netscape Navigator and MS Internet Explorer.

Computer Security↗

PubMed2000

Health information networks: enabling care management in IDSs.

To be successful, IDSs require streamlined, information integration across the continuum of care. Having this capability enables IDSs to manage care and costs efficiently, provide physicians with enterprisewide access to eligibility information, and respond to the communication and quality demands of patients. For most IDSs, the quickest and most cost-effective way to achieve overall information-system integration is to implement a health information network (HIN) based on Internet technologies. A HIN enables IDS providers and staff to access requisite administrative and clinical information from throughout the enterprise using a Web browser.

Computer Security↗

PubMedDate not supplied

Using the Internet for research.

OBJECTIVE: (1) To give an overview of research tools, techniques, and resources that are available on the Internet; and (2) to identify valid, pharmacy-related information that will reduce uncertainty in the problem-solving activities of practitioners. DATA SOURCES: The World Wide Web. STUDY SELECTION: Examples cited in the article were evaluated according to the criteria offered in the text as a prerequisite for their inclusion. DATA SYNTHESIS: Functional aspects of the Internet include communication, commerce, and content. Because a lack of control has led to mixed information quality, the use of Internet-based information for patient care and professional decision making should be subject to rigorous screening criteria. Pharmacists can use Web browsers combined with excellent search engines and search techniques to identify quality resources, including primary, secondary, and tertiary literature, either fee-based or free, and that can be sought actively or distributed on a schedule directly to the desktop of the pharmacist. CONCLUSION: The Internet can be an immensely helpful research tool, if used appropriately. Whether actively searching or passively receiving useful updates, the Internet can function as a value-added asset to any pharmacy practice.

Humans↗

PubMed2000

Glucoweb: a case study of secure, remote biomonitoring and communication.

As the Internet begins to play a greater role in many healthcare processes, it is inevitable that remote monitoring of patients' physiological parameters over the Internet will become increasingly commonplace. Internet-based communication between patients and their healthcare providers has already become prevalent, and has gained significant attention in terms of confidentiality issues. However, transmission of data directly from patients' physiological biomonitoring devices over the Web has garnered significantly less focus, especially in the area of authentication and security. In this paper, we describe a prototype system called Glucoweb, which allows patients with diabetes mellitus to transmit their self-monitored blood glucose data directly from their personal glucometer device to their diabetes care provider over the Internet. No customized software is necessary on the patient's computer, only a Web browser and active Internet connection. We use this example to highlight key authentication and security measures that should be considered for devices that transmit healthcare data to remote locations.

Blood Glucose Self-Monitoring↗

PubMed2000

Clinical benchmarking for the office practitioner enabled by the online health record

Payer organizations, regulatory entities, and delivery networks are placing increasing pressure on physicians to report aggregate information about their patients and practice of medicine. Historically, clinicians have been ill-equipped to respond to these pressures when their practices have relied upon payer records for clinical information management. Key Industry Drivers: Physicians need specific information from their practices for the purposes of contract management, preventive care, office productivity, and utilization reviews. Value Statement: Clinical data captured at the point of care can support reporting requirements, and supplement or replace laboriously-collected data derived from billing and other administrative systems. Information from the Online Health Record can empower the individual physician to assess what is going on in their practice of medicine, as opposed to being "profiled" by an external entity. We created a secure web-based system that provides access to a clinical data mart, to allow online benchmarking for the individual or office practitioner. Providers used a web-enabled documentation system to document the clinical facts of the encounter. A nightly set of routines extracts data from the online chart into the clinical data mart built in a relational database. The system uses a clinical vocabulary server to map provider-entered strings to normalized clinical concepts. The system loads chart data into a dimensional data model, to simplify data representation and ensure fast query performance. Providers can access their own profiles from a secure web browser.

Journal Article↗

PubMed1999

Acquisition, storage, and transmission of multi-species electrocardiographic data.

We have developed a system for a remotely accessible secure entry and storage of electrocardiographic (ECG) and associated data. It allows entry of data as a scanned TIFF file from any authorized remote user and is specifically designed to accommodate ECGs of multiple species. The system runs on a dual processor Pentium-II with FreeBSD 3.0 as the operating system. The database used is MySQL 3.22 with interface routines written in C and Perl 5.005. The Web server used is Apache 1.3.4. No client is needed other than an Internet connected computer with a Web browser such as Netscape Communicator or Microsoft Internet Explorer.

Animals↗