MOTIVATION: RNA Movies is a system for the visualization of RNA secondary structure spaces. Its input is a script consisting of primary and secondary structure information. From this script, the system fully automatically generates animated graphical structure representations. In this way, it creates the impression of an RNA molecule exploring its own two-dimensional structure space. RESULTS: RNA Movies has been used to generate animations of a switching structure in the spliced leader RNA of Leptomonas collosoma and sequential foldings of potato spindle tuber viroid transcripts. AVAILABILITY: Demonstrations of the animations mentioned in this paper can be viewed on our Bioinformatics web server under the following address: http://BiBiServ.TechFak.Uni-Bielefeld. DE/rnamovies/. The RNA Movies software is available upon request from the authors. (+info)
The clinical display of radiologic information as an interactive multimedia report.
We regard the delivery of radiological information as an interactive multimedia report. We use a multimedia report model based on Extensible Markup Language (XML), rather than a traditional workstation model. Others have suggested a similar document-based approach. This display presentation includes image-related and text-based information and may contain interactive components (e.g., window, level and zoom). Using XML as a foundation for this multimedia presentation, we achieve flexibility and platform independence at a lower cost. XML allows for the separation of content and form. Content information, defined as elements (e.g., images, radiologic reports, and demographic information), is treated as independent information objects. The behavior of the elements can be changed for different users and tasks. In addition, by separating format detail from content, the appearance of the elements within the report can be modified. XML does not replace existing standards (i.e., Digital Imaging and Communications in Medicine [DICOM], Transmission Control Protocol/Internet Protocol [TCP/IP]). Instead, it provides a powerful framework that is used in combination with existing standards to allow system designers to modify display characteristics based on user need. We describe our application of XML to the clinical display of radiologic information. (+info)
Virtual management of radiology examinations in the virtual radiology environment using common object request broker architecture services.
In the Department of Defense (DoD), US Army Medical Command is now embarking on an extremely exciting new project--creating a virtual radiology environment (VRE) for the management of radiology examinations. The business of radiology in the military is therefore being reengineered on several fronts by the VRE Project. In the VRE Project, a set of intelligent agent algorithms determine where examinations are to routed for reading bases on a knowledge base of the entire VRE. The set of algorithms, called the Meta-Manager, is hierarchical and uses object-based communications between medical treatment facilities (MTFs) and medical centers that have digital imaging network picture archiving and communications systems (DIN-PACS) networks. The communications is based on use of common object request broker architecture (CORBA) objects and services to send patient demographics and examination images from DIN-PACS networks in the MTFs to the DIN-PACS networks at the medical centers for diagnosis. The Meta-Manager is also responsible for updating the diagnosis at the originating MTF. CORBA services are used to perform secure message communications between DIN-PACS nodes in the VRE network. The Meta-Manager has a fail-safe architecture that allows the master Meta-Manager function to float to regional Meta-Manager sites in case of server failure. A prototype of the CORBA-based Meta-Manager is being developed by the University of Arizona's Computer Engineering Research Laboratory using the unified modeling language (UML) as a design tool. The prototype will implement the main functions described in the Meta-Manager design specification. The results of this project are expected to reengineer the process of radiology in the military and have extensions to commercial radiology environments. (+info)
This multimedia radiology teaching file was developed for medical students, residents, physicians, and researchers to present teaching components related to clinical studies. Patient studies are used to create teaching cases, user can also create lecture series and custom presentations (catalogs) by linking related text and images. The user is able to make and preserve his/her own notes related to reviewed information. From the computer workstation, the user can perform search our case library by American College of Radiology (ACR) codes, keywords, modalities, or text. Results are presented in custom pages and include text lists, thumbnails lists, rescaled images, and full-size images. Text can be easily printed in custom format or exported to an ASCI file. To preserve the privacy of the student, access to our database is granted to the web browser by log-in panel. Image and text can be imported from Digital Imaging and Communications in Medicine (DICOM)-compatible devices or entered by using web forms. In conclusion, we developed a multifunctional interactive teaching environment accessible for multiplatform internet users. (+info)
A tailored multimedia nutrition education pilot program for low-income women receiving food assistance.
This article describes the development and pilot evaluation of a tailored multimedia program to improve dietary behavior among 378 low-income women enrolled in the Food Stamp program in Durham, North Carolina. After randomization to intervention or control groups, participants completed a baseline survey and were resurveyed 1-3 months post-intervention. Measures included dietary fat intake assessed using a brief food-frequency questionnaire, stage of change, knowledge of low-fat foods, self-efficacy and eating behavior questions. The computer-based intervention consisted of a tailored soap opera and interactive 'info-mercials' that provided individualized feedback about dietary fat intake, knowledge and strategies for lowering fat based on stage of change. At follow-up, intervention group participants had improved significantly in knowledge (P < 0.001), stage of change (P < 0.05) and certain eating behaviors (P < 0.05) compared to the control group. Both study groups had lowered their reported fat intake markedly at follow-up (P < 0.001), but did not differ significantly from each other. A majority of participants rated the program as very helpful and were interested in using a similar program in the future. The findings of this pilot study suggest that computerized tailored self-help health promotion programs may be effective educational interventions for lower income and minority populations. (+info)
A multimedia intervention on cardiopulmonary resuscitation and advance directives.
OBJECTIVE: To assess the effects of a multimedia educational intervention about advance directives (ADs) and cardiopulmonary resuscitation (CPR) on the knowledge, attitude and activity toward ADs and life-sustaining treatments of elderly veterans. DESIGN: Prospective randomized controlled, single blind study of educational interventions. SETTING: General medicine clinic of a university-affiliated Veterans Affairs Medical Center (VAMC). PARTICIPANTS: One hundred seventeen Veterans, 70 years of age or older, deemed able to make medical care decisions. INTERVENTION: The control group (n = 55) received a handout about ADs in use at the VAMC. The experimental group (n = 62) received the same handout, with an additional handout describing procedural aspects and outcomes of CPR, and they watched a videotape about ADs. MEASUREMENTS AND MAIN RESULTS: Patients' attitudes and actions toward ADs, CPR and life-sustaining treatments were recorded before the intervention, after it, and 2 to 4 weeks after the intervention through self-administered questionnaires. Only 27.8% of subjects stated that they knew what an AD is in the preintervention questionnaire. This proportion improved in both the experimental and control (87.2% experimental, 52.5% control) subject groups, but stated knowledge of what an AD is was higher in the experimental group (odds ratio = 6.18, p <.001) and this effect, although diminished, persisted in the follow-up questionnaire (OR = 3.92, p =. 003). Prior to any intervention, 15% of subjects correctly estimated the likelihood of survival after CPR. This improved after the intervention in the experimental group (OR = 4.27, p =.004), but did not persist at follow-up. In the postintervention questionnaire, few subjects in either group stated that they discussed CPR or ADs with their physician on that day (OR = 0.97, p = NS). CONCLUSION: We developed a convenient means of educating elderly male patients regarding CPR and advance directives that improved short-term knowledge but did not stimulate advance care planning. (+info)
Providing a complete online multimedia patient record.
Seamless integration of all types of patient data is a critical feature for clinical workstation software. The Dept. of Veterans Affairs has developed a multimedia online patient record that includes traditional medical chart information as well as a wide variety of medical images from specialties such as cardiology, pulmonary and gastrointestinal medicine, pathology, radiology, hematology, and nuclear medicine. This online patient record can present data in ways not possible with a paper chart or other physical media. Obtaining a critical mass of information online is essential to achieve the maximum benefits from an integrated patient record system. (+info)
Student bodies: psycho-education communities on the web.
We have developed a Web-delivered, multimedia health educational program, Student Bodies, designed to improve body satisfaction, a probable risk factor for the development of eating disorders in young women. The program includes psycho-educational content and a newsgroup for communication, and is delivered in a structured framework of weekly readings, assignments and postings to the newsgroup. Intervention group participants improved their body image, and reduced other attitudes that predispose to eating disorders. (+info)