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At least 523 records · Page 29Linked to original sources
PubMed2003

A model for a PC-based, universal-format, multimedia digitization system: moving beyond the scanner.

RATIONALE AND OBJECTIVES: Digitizing images for use in case presentations based on hardcopy films, slides, photographs, negatives, books, and videos can present a challenging task. Scanners and digital cameras have become standard tools of the trade. Unfortunately, use of these devices to digitize multiple images in many different media formats can be a time-consuming and in some cases unachievable process. The authors' goal was to create a PC-based solution for digitizing multiple media formats in a timely fashion while maintaining adequate image presentation quality. MATERIALS AND METHODS: The authors' PC-based solution makes use of off-the-shelf hardware applications to include a digital document camera (DDC), VHS video player, and video-editing kit. With the assistance of five staff radiologists, the authors examined the quality of multiple image types digitized with this equipment. The authors also quantified the speed of digitization of various types of media using the DDC and video-editing kit. RESULTS: With regard to image quality, the five staff radiologists rated the digitized angiography, CT, and MR images as adequate to excellent for use in teaching files and case presentations. With regard to digitized plain films, the average rating was adequate. As for performance, the authors recognized a 68% improvement in the time required to digitize hardcopy films using the DDC instead of a professional quality scanner. CONCLUSIONS: The PC-based solution provides a means for digitizing multiple images from many different types of media in a timely fashion while maintaining adequate image presentation quality.

Computers↗
PubMed1997

A network of web multimedia medical information servers for a medical school and university hospital.

Modern medicine requires a rapid access to information including clinical data from medical records, bibliographic databases, knowledge bases and nomenclature databases. This is especially true for University Hospitals and Medical Schools for training as well as for fundamental and clinical research for diagnosis and therapeutic purposes. This implies the development of local, national and international cooperation which can be enhanced via the use and access to computer networks such as Internet. The development of professional cooperative networks goes with the development of the telecommunication and computer networks and our project is to make these new tools and technologies accessible to the medical students both during the teaching time in Medical School and during the training periods at the University Hospital. We have developed a local area network which communicates between the School of Medicine and the Hospital which takes advantage of the new Web client-server technology both internally (Intranet) and externally by access to the National Research Network (RENATER in France) connected to the Internet network. The address of our public web server is http:(/)/www.med.univ-rennesl.fr.

Artificial Intelligence↗
PubMed2006

Systemizing empathy: teaching adults with Asperger syndrome or high-functioning autism to recognize complex emotions using interactive multimedia.

This study evaluated Mind Reading, an interactive systematic guide to emotions, for its effectiveness in teaching adults with Asperger syndrome (AS) and high-functioning autism (HFA) to recognize complex emotions in faces and voices. Experiment 1 tested a group of adults diagnosed with AS/HFA (n = 19) who used the software at home for 10-15 weeks. Participants were tested on recognition of faces and voices at three different levels of generalization. A matched control group of adults with AS/HFA (n = 22) were assessed without any intervention. In addition, a third group of general population controls (n = 24) was tested. Experiment 2 repeated the design of Experiment 1 with a group of adults with AS/HFA who used the software at home and met in a group with a tutor on a weekly basis. They were matched to a control group of adults with AS/HFA attending social skills training and to a general population control group (n = 13 for all three groups). In both experiments the intervention group improved significantly more than the control group on close, but not distant, generalization tasks. Verbal IQ had significant effects in Experiment 2. Using Mind Reading for a relatively short period of time allows users to learn to recognize a variety of complex emotions and mental states. However, additional methods are required to enhance generalization.

Adolescent↗
PubMed2004

Multimedia fate model for hexachlorocyclohexane in Tianjin, China.

A level III fugacity model was applied to characterize the fate of gamma-HCH in Tianjin, China, before the 1990s when the contamination reached its maximum at steady state. Geometric means were used as model inputs. The concentrations of gamma-HCH in air, surface water, soil, sediment, crops, and fish as well as transfer fluxes across the interface between the compartments were derived under the assumption of steady state. The calculated concentrations were validated by independent data collected from the literature. There was generally good agreement between the estimated and the observed concentrations, and the differences were all less than 0.6 log units for air, water, soil, sediment, and fish and approximately 1 order of magnitude for crops. Around 97% of gamma-HCH accumulated in soil and sediment. Wastewater irrigation was not an important pathway for delivering gamma-HCH to soil as compared to the dominant source of agricultural application. Degradation and advective airflow carried much gamma-HCH out of the system. Sensitivities of the model estimates to input parameters were tested, and a coefficient of variation normalized sensitivity coefficient was defined for the test. The most influential parameters were degradation rates in sediment and soil, application rates, concentrations in wastewater, and adsorption coefficients. Monte Carlo simulation was conducted for model uncertainty analysis. The model was run 20 000 times using randomly generated data from predefined log-normal distribution density functions. All calculated concentrations and fluxes were log-normally distributed. The dispersions of the calculated and observed concentrations were compared in terms of coefficients of variation to distinguish between true variability and model uncertainty.

Air↗
PubMed2002

Fostering understanding of multimedia messages through pre-training: evidence for a two-stage theory of mental model construction.

Students received a narrated animation explaining the workings of a car's braking system (Experiments 1 and 2) or a bicycle tire pump (Experiment 3) and then took retention and transfer tests. Some students received pre-training concerning each of the components in the system before receiving the narrated animation (pre-training group), whereas others received no pre-training (no pre-training group) or--only in Experiment 3--training after the narrated animation (post-training group). The pre-training described or depicted the possible states of each part. Students in the pre-training group performed better than did students in other groups on tests of transfer (in all 3 experiments) and retention (in Experiments 1 and 2). Results are consistent with a 2-stage theory of mental model construction.

Adult↗
PubMed2001

Surgical skills training: simulation and multimedia combined.

CONTEXT: Basic surgical skills are needed throughout the medical profession, but current training is haphazard and unpredictable. There is increasing pressure to provide transparency about training and performance standards. There is a clear need for inexperienced learners to build a framework of basic skills before carrying out surgical procedures on patients. Effective learning of a skill requires sustained deliberate practice within a cognitive framework, and simulation offers an opportunity for safe preparation. OBJECTIVES: This paper presents a new approach to basic surgical skills training, where tuition using a specially designed computer program is combined with structured practice using simulated tissue models. This approach to teaching has evolved from practical experience with surgical skills training in workshops. METHODS: Pilot studies with 72 first-year medical students highlighted the need for separate programs for teaching and for self-directed learning. The authors developed a training approach in the light of this experience. Subsequent in-depth observational and interview studies examined (a) individual teaching sessions between surgical teachers and learners (five consultant surgeons and five senior house officers) and (b) group teaching sessions with general practitioners (14 participants in three group interviews). Further work has resulted in a self-directed learning program. CONCLUSIONS: Qualitative analysis of observational and interview data provides strong preliminary support for the effectiveness of this approach. The response of teachers and learners was extremely positive. The combination of information (presented by computer) and practice of psychomotor skill (using simulated tissue models) could be extended to other surgical and practical skills.

Clinical Competence↗
PubMed2000

[Value of multimedia educational software in training of the paranasal sinus surgeon].

BACKGROUND: When starting sinus surgery, every surgeon has to pass through an individual learning curve. To avoid complications, costly, time-consuming surveillance is necessary. We wanted to analyse the impact of multimedial teaching software on the learning curve. METHODS: A total of 1104 operations performed by four surgeons were evaluated. The first consecutive 200 operations by each surgeon were analyzed according to their complications. After revaluating the general phases of surgical development, we compared the first 90 operations by another group of four surgeons who had undergone training with the teaching program. RESULTS: Cauterization of the anterior ethmoidal anterior was nearly the same in both groups (10/8). Injuries of the dura dropped from 5 to 2, and periorbital lesions were reduced significantly from 20 to 5 (p < 0.001). CONCLUSIONS: Multimedial learning programs can reduce complications effectively and form a valuable part training.

Chronic Disease↗
PubMedDate not supplied

Development and evaluation of the Families, Cultures and Augmentative and Alternative Communication (AAC) multimedia program.

PURPOSE: The Families, Cultures and AAC Project was designed to provide professionals and families with accurate, culturally sensitive information about augmentative communication technologies and decision-making strategies through an innovative, user-friendly format. METHODS: The project resulted in the development of the first interactive bilingual CD-ROM designed to be used by professionals at the pre- or in-service level, and family members from diverse cultures to develop AAC decision-making competencies. RESULTS: The Interactive Health Communication (IHC) model provided an effective structure for conceptualizing, developing and evaluating the program. The program also incorporated universal access design concepts. The program was evaluated in the following 10 categories: usability, visual appearance, consistency, error tolerance, navigation, feedback, user control, redundant formats, content accuracy, and engaging styles. CONCLUSION: Reviewers of the program indicated that it was well designed and would be useful for the intended purpose.

Adult↗
PubMed2003

Male sexual dysfunctions and multimedia immersion therapy (follow-up).

The aim of the study was to evaluate the efficiency, after 1 year, of combined use of psychodynamic psychotherapy integrating virtual reality (VR) for the treatment of erectile dysfunction (ED) and premature ejaculation (PE) in 160 heterosexual males who had neither any prior sexual therapy nor had made use (either before, during or after therapy) of any specific pharmaceuticals for the treatment of primary sexual dysfunction. All subjects had given their informed consent. After a clinical diagnosis in an andrologic center, 50 presumably psychological ED (average age 43.7 years), 60 mixed ED (53.9 years) and 50 primary PE (39 years) who suffered these problems over 6 months were undergoing a cycle of 12 sessions, over a 25-week period, of psychotherapy, integrating an audio CD and helmet with miniature television screens that projected specially designed CD-ROM program on the ontogenetic development of male sexual identity. The clinical follow up was done after 6 and 12 months after the cycle. After one year, the overall partial (two times out of three) and complete positive response rate for psychological ED was 75%, for mixed ED was 47% and for PE was 54%. We considered drop-out cases as only before the 7th session of the treatment cycle, the drop-outs after session 7 and the patients that did not show up for follow-up are counted as negative results. Two patients reported nausea and one, vertigo during the first 15-min virtual reality experience. Considering the particular way that full-immersion virtual reality involves the subject who experiences it, we hypothesized that this methodological approach could speed up the therapeutic process. The evidence that positive results persist over time allows us to hypothesize that certain changes in cerebral function can be possible and that these changes are correlated to favorable sexual performance in the male.

Adult↗
PubMed2001

A randomized, controlled trial of interactive, multimedia software for patient colonoscopy education.

The purpose of our study was to assess the effectiveness of computer-assisted instruction (CAI) in patients having colonoscopies. We conducted a randomized, controlled trial in large, multispecialty clinic. Eighty-six patients were referred for colonoscopies. The interventions were standard education versus standard education plus CAI, and the outcome measures were anxiety, comprehension, and satisfaction. Computer-assisted instruction had no effect on patients' anxiety. The group receiving CAI demonstrated better overall comprehension (p < 0.001). However, Comprehension of certain aspects of serious complications and appropriate postsedation behavior were unaffected by educational method. Patients in the CAI group were more likely to indicate satisfaction with the amount of information provided when compared with the standard education counterparts (p = 0.001). Overall satisfaction was unaffected by educational method. Computer-assisted instruction for colonoscopy provided better comprehension and greater satisfaction with the adequacy of education than standard education. Computer-assisted instruction helps physicians meet their educational responsibilities with no decrement to the interpersonal aspects of the patient-physician relationship.

Adult↗
PubMedDate not supplied

Compact disc interactive: a multimedia solution for staff education.

The findings acquired from two focus groups (13 generalist RNs and 13 specialist RNs) which were held to evaluate compact disc interactive (CD-i) as a self-learning option for staff development were reviewed. The findings from these groups were that the CD-i platform offers educators the opportunity to design programs that meet nurses' learning needs without the need for multi-media, computers, and the associated platform training and education. This study reinforced the previously identified problem that nurses have difficulty balancing the responsibilities of providing direct patient care and the need for additional education and training and that self-study is an acceptable alternative to the traditional lecture format.

Adult↗