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Results for “Multimedia”

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At least 127 records · Page 7Linked to original sources

PubMed1998

[A multimedia echocardiographic archive].

The widespread diffusion of echocardiography requires to rationalize clinical examination archives; the recent improvement in computer processing speed and the addition of image processing capabilities on standard personal computer by using multimedia technology provide a low-cost solution to improve video digital acquisition and base management. Furthermore, the diffusion of computer networks supports the possibility of sending images in digital format from a work station to another. In this study we describe the setting-up of a system for echocardiographic image acquisition, storage, base management and analysis based on a standard multimedia Macintosh personal computer using readily available not-dedicated software. We tested the overall efficiency of this system in terms of time required to perform hardware and software procedures, storage capacity of the archive and possibility to exchange information with other wire-linked computer work-stations or via modem. This system has proven to require an acceptable time to perform all the procedures showing a high level of connectivity with other standard personal computer work-stations; however, some limitations with regard to time required in sending via modem long movie files need to be pointed out. In conclusion, in our experience new multimedia personal computer could offer to every physician with a minimum informatic knowledge the well known advantages of digital-video, at a reasonable cost.

Archives↗

PubMed1998

[Development of a multimedia CD-ROM series for improving surgical education and continuing education].

In the past 4 years, the computer-based training laboratory of the Department of Surgery, University of Heidelberg, has developed a multimedia library, the med.LIVE-series. This CD-ROM series contains 5000 multimedia units with information of a uniform structure that comprises 26 CD-ROMs. These modules contribute significantly to the training and education of medical students and doctors. Furthermore, this multimedia library is intended to aid in the development of a database-supported online information system. Authors interested are encouraged to contribute to the series.

CD-ROM↗

PubMed1991

A new teaching tool for dental and medical schools: multimedia CD-ROM on dental and skeletal development.

Multimedia teaching tools in Medicine are still very rare. Their presentation on a CD-ROM format is part of the emerging technologies in Medical Informatics. The Multimedia material presented here on Dental and Skeletal Development is mostly a Database and a Tutorial. The Database, which contains more than 2000 hand/wrist radiographs, is mostly intended for Pediatricians, Endocrinologists, Forensic Dentists and Physicians, as well as for Orthodontists and Pedodontists. The material is the result of 20-year of Longitudinal Growth study of children in Montreal. In this Multimedia CD-ROM, the research results are used for Medical teaching purposes.

Bone Development↗

PubMedDate not supplied

Multimedia in the radiology environment: current concept.

Multimedia has different meanings according to its context. Here, multimedia in the radiology environment is defined as the integration of multiple radiology and medical information systems to facilitate the practice of radiology. These information systems include the hospital information system, radiology information system, picture archiving and communication systems, voice reporting, library information systems, and electronic mail and file systems. The concept of multimedia within the context of integration of these database systems will be presented. An example is given on how to access these information systems by a radiologist's desktop personal computer.

Database Management Systems↗

PubMed1994

The efficacy of a multimedia educational campaign to increase the use of eye care services.

PURPOSE: Effective eye care, both preventive and problem-directed, requires that patients actually see trained eye care providers. The authors examined the impact of a multimedia campaign on patient behavior in using eye care. METHODS: The authors surveyed 2000 individuals 1 year after they mailed in a contrast sensitivity screening card during a focused multimedia educational campaign. The response rate was 39%, allowing precision of estimates to +/- 4%. FINDINGS: Those who failed the screening test were much more likely to have had an eye examination in the year after the campaign and were much more likely to have seen an ophthalmologist for their care. Other important factors significantly related to using eye care services were: having had prior examinations, having a non-ophthalmologist physician, and having a history of cancer or macular degeneration. Importantly, 22% of those who failed the screening test thought they had had normal results when asked 1 year later. CONCLUSIONS: A focused multimedia campaign combined with interactive patient involvement can directly increase the use of eye care services. In addition, such care is much more likely to be delivered by ophthalmologist as opposed to other providers.

Contrast Sensitivity↗

PubMed2003

Squire's Quest! Dietary outcome evaluation of a multimedia game.

BACKGROUND: Fruit, juice, and vegetable (FJV) consumption among children is low. Innovative programs are needed to enable children to increase FJV intake. Psychoeducational multimedia permits the delivery of interventions as designed and capitalizes on known behavior change principles. DESIGN: Elementary school was the unit of recruitment, assignment, and analysis. Twenty-six elementary schools were pair matched on size and percentage of free or reduced-price lunch, and randomly assigned to treatment or control groups. Data were collected just before and just after the program. SETTING/PARTICIPANTS: All fourth-grade students in participating elementary schools were invited to participate. Data were collected on 1578 students. MAIN OUTCOME Servings of fruit, 100% juice, and vegetables consumed. INTERVENTION: Squire's Quest! is a ten-session, psychoeducational, multimedia game delivered over 5 weeks, with each session lasting about 25 minutes. Based on social cognitive theory, educational activities attempted to increase preferences for FJV through multiple exposures and associating fun with their consumption, increase asking behaviors for FJV at home and while eating out, and increase skills in FJV preparation through making virtual recipes. MEASURES: Four days of dietary intake were assessed before and after the intervention. Assessment was made by the Food Intake Recording Software System (FIRSSt), which conducts a multiple pass, 24-hour dietary intake interview directly with the children. RESULTS: Children participating in Squire's Quest! increased their FJV consumption by 1.0 servings more than the children not receiving the program. CONCLUSIONS: Psychoeducational multimedia games have the potential to substantially change dietary behavior. More research is warranted.

Beverages↗

PubMed2001

Intermittent rainfall in dynamic multimedia fate modeling.

It has been shown that steady-state multimedia models (level III fugacity models) lead to a substantial underestimate of air concentrations for chemicals with a low Henry's law constant (H < 0.01 Pa m-3 mol-1) because they assume a steady rain. This can lead to substantial errors, especially when multimedia models are used to estimate the spatial range or inhalation exposure. A dynamic model of pollutant fate is developed for conditions of intermittent rainfall to calculate the time profile of pollutant concentrations in different environmental compartments. The model utilizes a new, mathematically efficient approach to dynamic multimedia fate modeling that is based on the convolution of solutions to the initial conditions problem. For the first time, this approach is applied to intermittent conditions. The investigation indicates that the time-averaged pollutant concentrations under intermittent rainfall can be approximated by the appropriately weighted average of steady-state concentrations under conditions with and without rainfall.

Environmental Monitoring↗

PubMed2002

Assessment of cognitive load in multimedia learning using dual-task methodology.

In two pilot experiments, a new approach for the direct assessment of cognitive load during multimedia learning was tested that uses dual-task methodology. Using this approach, we obtained the same pattern of cognitive load as predicted by cognitive load theory when applied to multimedia learning: The audiovisual presentation of text-based and picture-based learning materials induced less cognitive load than the visual-only presentation of the same material. The findings confirm the utility of dual-task methodology as a promising approach for the assessment of cognitive load induced by complex multimedia learning systems.

Adult↗

PubMed2002

Security of medical multimedia.

The application of information technology to health care has generated growing concern about the privacy and security of medical information. Furthermore, data and communication security requirements in the field of multimedia are higher. In this paper we describe firstly the most important security requirements that must be fulfilled by multimedia medical data, and the security measures used to satisfy these requirements. These security measures are based mainly on modern cryptographic and watermarking mechanisms as well as on security infrastructures. The objective of our work is to complete this picture, exploiting the capabilities of multimedia medical data to define and implement an authorization model for regulating access to the data. In this paper we describe an extended role-based access control model by considering, within the specification of the role-permission relationship phase, the constraints that must be satisfied in order for the holders of the permission to use those permissions. The use of constraints allows role-based access control to be tailored to specifiy very fine-grained and flexible content-, context- and time-based access control policies. Other restrictions, such as role entry restriction also can be captured. Finally, the description of system architecture for a secure DBMS is presented.

Computer Security↗

PubMed2005

Worksite-based internet multimedia program for family caregivers of persons with dementia.

PURPOSE: Our goal was to evaluate the efficacy of a multimedia support program delivered over the Internet to employed family caregivers of persons with dementia. DESIGN AND METHODS: The evaluation of this program involved 299 employed family caregivers participating in a pretest-posttest randomized clinical trial with a 30-day follow-up and a waitlist control condition. Validated instruments include the Center for Epidemiologic Studies-Depression scale, the State-Trait Anxiety Inventory, the Caregiver Strain scale from Benjamin Rose, and Positive Aspects of Caregiving used in the nationwide REACH study. RESULTS: Those who viewed Caregiver's Friend: Dealing with Dementia 30 days postexposure demonstrated significant improvements in depression, anxiety, level and frequency of stress, caregiver strain, self-efficacy, and intention to seek help, as well as perceptions of positive aspects of caregiving. IMPLICATIONS: Interactive multimedia interventions delivered over the Internet appear to be uniquely suited to provide low-cost, effective, convenient, individually tailored programs that present educational information, cognitive and behavioral skills, and affective learning opportunities. This makes Web-based multimedia a promising avenue for work-life balance programs, employee-assistance providers, and organizations interested in improving family caregiver health and well-being.

Adult↗

PubMed2001

Quantitative goals for a 222Rn multimedia mitigation plan.

The U.S. Environmental Protection Agency's revised proposed 222Rn in drinking water regulation gives states or individual community water systems the option of compliance with the maximum contaminant level or compliance with the higher, alternate maximum contaminant level accompanied by the implementation of a multimedia mitigation plan. If states or water suppliers choose to comply with the alternate maximum contaminant level, the health risk reduction achieved by multimedia mitigation programs must be equal to or greater than the health risk reduction that would be achieved by compliance with the maximum contaminant level rather than the alternate maximum contaminant level. We have developed a method to determine quantitative goals for mitigating existing homes and building new 222Rn-resistant homes to achieve a health risk reduction to the public equivalent to the health risk differential between alternate maximum contaminant level and maximum contaminant level compliance. This method can be applied to an entire state, a portion of a state, or to an individual water supplier. The method was applied to North Carolina, and it was concluded that, over time, the health risk reduction achievable from alternate maximum contaminant level compliance and the implementation of a multimedia mitigation program would be much greater than from compliance with the maximum contaminant level.

Radon↗

PubMed1998

A broadband multimedia collaborative system for advanced teleradiology and medical imaging diagnosis.

This paper presents a new telemedicine system currently in routine clinical usage, developed within the European Union (EU) ACTS BONAPARTE project (1). The telemedicine system is developed on an asynchronous transfer mode (ATM) multimedia hardware/software platform comprising the following set of telemedicine services: synchronous cooperative work, high-quality video conference, multimedia mail, medical image digitizing, processing, storing and printing, and local and remote transparent database access. The medical information handled by the platform conforms to the Digital Imaging and Communications in Medicine (DICOM) 3.0 medical imaging standard. The telemedicine system has been installed for clinical routines in three Spanish hospitals since November 1997 and has been used in an average of one/two clinical sessions per week. At each clinical session, a usability and clinical evaluation of the system was carried out. Evaluation is carried out through direct observation of interactions and questionnaire-based subjective data. The usability evaluation methodology and the results of the system usability study are also presented in this article. The experience gained from the design, development, and evaluation of the telemedicine system is providing an indepth knowledge of the benefits and difficulties involved in the installation and clinical usage of this type of high-usability and advanced multimedia telemedicine system in the field of teleradiology and collaborative medical imaging diagnosis.

Diagnostic Imaging↗

PubMed1998

A comparison of multimedia and standard advanced cardiac life support learning.

OBJECTIVES: To compare student performance after Multimedia ACLS Learning System (MM) education compared with that after standard (ST) ACLS education. METHODS: Final-year medical students were divided into 2 groups based on convenience scheduling and given ACLS instruction either in a standard format or with the MM course. The sizes of the small groups and the times in small-group instruction were identical. All students were evaluated with the same 50-item multiple-choice written examination, a structured evaluation immediately after the management of a mock cardiac arrest, and a second structured evaluation of the same mock arrest (videotaped) by an instructor blinded to the education method. Students were assigned a mark from 1 to 5 in each of 4 domains: assessment, immediate priorities, continual assessment, and leadership. RESULTS: 75 students took the MM and 38 took the ST course. The mean +/- SD mark for the multiple-choice test was 89.3 +/- 4.9% (MM) vs 89.3 +/- 4.8% (ST); the on-site mock arrest evaluation mark (20 maximum) was 14.1 +/- 2.5 (MM) vs 14.1 +/- 2.0 (ST); and the blinded mock arrest evaluation was 13.1 +/- 2.9 (MM) vs 14.4 +/- 2.9 (ST) (p = 0.024). 1/75 (MM) vs 0/38 (ST) did not successfully complete the on-site mock arrest evaluation. More students in the MM group (46% vs 25%) required multiple attempts to successfully complete the mock arrest evaluation (p < 0.02). CONCLUSION: In medical students with no previous ACLS training, structured access to the multimedia ACLS Learning System provides immediate educational outcomes similar to those of a standard ACLS course. Multimedia computer-interactive learning should be enhanced with a short period of hands-on practice.

British Columbia↗

PubMed1996

Authenticity in learning: multimedia design projects in the social studies for students with disabilities.

Proponents of educational reform highlight the importance of creating instructional environments that encourage students' active involvement in the learning process. To be so involved, students with and without disabilities must construct knowledge, evaluate the products of their work, and engage in the design of solutions to authentic problems. We believe that these goals are especially important for students with disabilities, many of whom are passive learners who experience difficulty with the flexible use of knowledge and skills. Our analysis of the research evidence leads us to conclude that students' thinking skills and attitudes are enhanced when they collaborate in the solution of authentic problems. We view the social skills curriculum as a rich source of authentic problems that affords opportunities to promote thinking by enabling argument about controversial issues. Further, we contend that educational multimedia are potentially powerful tools for constructing knowledge, especially when used in collaborative project-based instructional environments, or multimedia design projects. We review evidence about the efficacy of multimedia design projects in promoting students' construction of knowledge, thinking, and problem solving, and discuss some potential challenges to the efficacy of this approach.

Audiovisual Aids↗

PubMed1996

Multimedia: enhancing instruction for students with learning disabilities.

This article includes an introduction to the terminology and different types of formats of current multimedia technologies. Integration opportunities and challenges for using multimedia for students with learning disabilities are discussed in the framework of learning environments. Multimedia used as a demonstration station, learning research station, and creation station offers teachers and students possibilities for enhancing the teaching-learning environment.

Achievement↗

PubMed2006

Multimedia Bootcamp: a health sciences library provides basic training to promote faculty technology integration.

BACKGROUND: Recent research has shown a backlash against the enthusiastic promotion of technological solutions as replacements for traditional educational content delivery. Many institutions, including the University of Virginia, have committed staff and resources to supporting state-of-the-art, showpiece educational technology projects. However, the Claude Moore Health Sciences Library has taken the approach of helping Health Sciences faculty be more comfortable using technology in incremental ways for instruction and research presentations. In July 2004, to raise awareness of self-service multimedia resources for instructional and professional development needs, the Library conducted a "Multimedia Bootcamp" for nine Health Sciences faculty and fellows. METHODS: Case study. RESULTS: Program stewardship by a single Library faculty member contributed to the delivery of an integrated learning experience. The amount of time required to attend the sessions and complete homework was the maximum fellows had to devote to such pursuits. The benefit of introducing technology unfamiliar to most fellows allowed program instructors to start everyone at the same baseline while not appearing to pass judgment on the technology literacy skills of faculty. The combination of wrapping the program in the trappings of a fellowship and selecting fellows who could commit to a majority of scheduled sessions yielded strong commitment from participants as evidenced by high attendance and a 100% rate of assignment completion. Response rates to follow-up evaluation requests, as well as continued use of Media Studio resources and Library expertise for projects begun or conceived during Bootcamp, bode well for the long-term success of this program. CONCLUSION: An incremental approach to integrating technology with current practices in instruction and presentation provided a supportive yet energizing environment for Health Sciences faculty. Keys to this program were its faculty focus, traditional hands-on instruction, unrestricted access to technology tools and support, and inclusion of criteria for evaluating when multimedia can augment pedagogical aims.

Journal Article↗

PubMedDate not supplied

Multimedia fate and transport models: an overview.

Several multimedia fate and transport models have been described. They basically fall into three classes: continuous (dynamic) site-specific models; generic (non-site-specific) screening models; and simple equilibrium partitioning screening models. The hydrologic components of site-specific models are all based on the Stanford Watershed Model. They all link existing single media models (e.g., air, land, water), but are not yet completely coupled. For each site-specific model, there are plans to eventually allow for feedback between media. The screening models take a variety of approaches, are much less data intensive than the site-specific models, and are mainly used to identify the media in which further efforts should be directed. As time goes on, many more multimedia methods will undoubtedly be developed and applied to problems of EPA concern. A major impediment to widespread use that needs to be overcome is a general lack of adequate data to test, calibrate, implement, and use the various models, particularly the more sophisticated ones. Many of the necessary monitoring data are lacking or inappropriate for modeling use, as are the needed chemical and environmental data. Therefore, modeling objectives will need to be considered in the planning of improved and expanded monitoring efforts. Better communication between users and modelers needs to be established (18). Bases of chemical and environmental data of known quality need to be developed, along with more structure-activity relationships for predicting chemical properties. In short, the widespread use of multimedia models will depend on the availability of data rather than on the availability of a model.

Environmental Exposure↗

PubMed1999

Saving the cost and energy by an interactive multimedia system with ISDN 128 Kbps for telemedicine.

The telemedicine systems offer many potential advantages for health care delivery. In 1997, we implemented Phoenix, the interactive multimedia system of the Nippon Telegraph and Telephone Corporation (NTT) for clinical application involving teleconsultations over a wide area for delivery of special care in emergency medicine at Tokai University linking with eight hospitals via the Integrated Service Digital Network (ISDN) 128 Kbps. This study was designed to determine the potential saving of the cost and energy through the interactive multimedia network. By using the interactive multimedia system with some modifications, we achieved a satisfactory real-time contact regarding clinical matters. We believe that this network has allowed appropriate transfer of information between medical centers. This system has also significantly reduced the estimated cost for clinical meetings.

Humans↗