PURPOSE: To evaluate the influence of threshold value of computed tomography on the accuracy of rapid prototyping (RP) medical model MATERIAL AND METHODS: CT datas of a human dry skull were transferred from CT scanner via compact disk to a personal computer (PC). 3-dimensional image reconstruction on PC by V-works(TM) 3.0 (CyberMed. Inc.) software and RP models fabrication were followed. 2-RP models were produced by threshold value of 500 and 800 selected in surface rendering process. Linear measurements between arbitrary 12 anatomical landmarks on dry skull, 3-D image model, and 2-RP models were done and compared. Thus, the accuracy of 500 RP and 800RP models was respectively evaluated. RESULTS: There was mean difference (% difference) in absolute value of 2.27 mm (2.73%) between linear measurements of dry skull and 500 RP model. There was mean difference (% difference) in absolute value of 1.94 mm(2.52%) between linear measurements of dry skull and 800 RP model. CONCLUSION: Slight difference of threshold value in rendering process of 3-D modelling made a influence on the accuracy of RP medical model.
Compact Disks ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; Microcomputers ; Skull

There is not a unique registry program about the CVM patients in Korea, even in the World. During the business meeting of International Society for the Study of Vascular Anomalies (ISSVA) 1996 in Rome, a sincere discussion took place about the 1988 Hamburg classification of CVM. This was followed by introduction of registry form that could be used universally throughout the world. We developed a CVM registry program calling CVM for world-wide sharing and analysis. This program is a typical database program application system based on Borland's Delphi 1.0 and the database is managed with dBase III+ . It became clear incoporating the Hamburg classification would be natural while expanding the diagnosis and treatment sections. This is a user-friendly, self-explanatory program that hardly needs any tutorial or instruction. Nonthless, for the foolhardy, it comes with manual that explains every aspect of it. Every panel comes with friendly buttons at your service at the stroke of the mouse or the pad. It can be used either on Windows 3.1 or 95, switching back and forth depending on your computer's capability. The program may obtained by diskettes, compact disc or downloaded from the Internet hompage. We will endeavor to upgrade periodcally as necessity arises.
Animals ; Classification ; Commerce ; Compact Disks ; Diagnosis ; Humans ; Internet ; Korea ; Mice ; Stroke

Endoscopic ultrasound (EUS) has been recently established as an indispensable modality for the diagnosis and management of pancreatobiliary and gastrointestinal (GI) disorders. EUS proficiency requires both cognitive and technical abilities, including an understanding of the appropriate indications, the performance of appropriate evaluations before and after the procedure, and the management of procedure-related complications. An increasing demand for skills to handle a growing range of interventional EUS procedures and a continual shortage of EUS training programs are two major obstacles for EUS training. Acquiring the skills necessary to comprehend and conduct EUS often requires training beyond the scope of a standard GI fellowship program. In addition to traditional formal EUS training and preceptorships, regular short-term intensive EUS training programs that provide training at various levels may help EUS practitioners improve and maintain EUS-related knowledges and skills. Theoretical knowledge can be acquired from lectures, textbooks, atlases, slides, videotapes, digital video discs, interactive compact discs, and websites. Informal EUS training is generally based on 1- or 2-day intensive seminars, including didactic lectures, skills demonstrated by expert practitioners through live video-streaming of procedures, and hands-on learning using animal or phantom models.
Animals ; Compact Disks ; Diagnosis ; Education ; Endoscopy* ; Endosonography ; Fellowships and Scholarships ; Learning ; Lectures ; Preceptorship ; Training Support ; Ultrasonography* ; Videotape Recording

BACKGROUND: This study aimed to develop an education system using DVD video-based teaching materials or web-based learning to reduce sexual violence among teens in Japan. METHODS: During the first stage, June 2018 to March 2019, an education program using DVD video teaching materials was carried out at three high schools and four universities with research consent from the director of the facility. From 1337 high school students and first- and second-year university students, subjects in their teen years were targeted for analysis. A survey was conducted at baseline and after the DVD video teaching. During the second stage, November 2019 to March 2020, web-based learning using improved video teaching materials was developed and carried out. From the adolescents who participated in the web-based learning, subjects in their teen years were targeted for analysis. A survey was conducted at baseline and after the web-based learning. RESULTS: In the first stage, 876 students consented to and participated in the education using DVD video teaching materials and baseline and after surveys (collection rate 65.5%). Among these, the number of respondents in their teens both baseline and after education was 705 persons (valid response rate 80.4%). In the second stage, the number of respondents in their teens both baseline and after education was 250 respondents in their teens who received web-based learning using the improved video teaching materials (valid response rate 87.1%). The improvement effect of the two programs was observed in attitudes that lead to physical violence, attitudes that lead to mental violence, attitudes that promote healthy conflict resolution, and dangerous attitudes that lead to sexual violence from persons in the community or through the Internet. The web-based learning program achieved an improvement of preventive attitudes toward sexual violence. CONCLUSIONS The education program using DVD video teaching materials or web-based learning may help prevent sexual violence among teens in Japan.
Adolescent ; Compact Disks ; Female ; Humans ; Internet ; Japan ; Male ; Sex Offenses/statistics & numerical data* ; Students ; Teaching Materials ; Video Recording

BACKGROUND AND OBJECTIVES: To standard test method of Korean speech audiometry, we developed an audio compact disk, the KsoM-07 (Korean Society of Otolaryngolgy, Monosyllabic, 2007) word lists and evaluated them for clinical usage. SUBJECTS AND METHOD: The monitored live voice (MLV) of a female talker was digitally recorded with a Beltone audiometer and the GoldWave program. The calibration for each word was done by calculating the root-mean-square (RMS) at the moving time of 300 ms using MATLAB(R) (7.0 version, The MathWorks, Inc. Natick, Massachusetts, USA) and the GoldWave (v 5.25 GoldWave Inc. St. John's, NL, Canada) program. The discrimination score was measured in 20 normal subjects to obtain psychometric function curve of each word and to compare the homogeneity of two lists. The first verification methods for new speech materials were done by comparing the discrimination scores of the flat type and the descending types at 150 sensorineural hearing loss with similar pure tone threshold. RESULTS: 44% of MLV recording was above +/-3 dB deviation and had to be recalibrated. Two lists showed equal difficulty or homogeneity in normal subjects. Discrimination scores were statistically different among the groups with respect to hearing level and the slope of audiogram. CONCLUSION: KsoM-07 word lists were relatively homogeneous and showed differences between the descending type and the flat type of hearing loss. Therefore, KsoM-07 word lists can be useful in evaluating the impairment found in the descending type of sensorineural hearing loss as well as in serving as a new speech test material for Korean monosyllabic words.
Audiometry, Speech ; Calibration ; Compact Disks ; Discrimination (Psychology) ; Female ; Hearing ; Hearing Loss ; Hearing Loss, Sensorineural ; Humans ; Massachusetts ; Psychometrics ; Speech Discrimination Tests ; Speech Intelligibility ; Voice

BACKGROUND AND OBJECTIVES: The purpose of this study was to compare speech audiometry test results of the conventional Hahm's list with those of Korean standard word lists for adults (KS-WL-A) using both live voice and compact disc (CD) speech presentation modes. SUBJECTS AND METHOD: Eighty patients with sensorineural hearing loss and 23 control subjects with normal hearing participated in the study. Each hearing loss group comprised 20 subjects (mild, moderate, moderately severe, and severe hearing loss groups). Speech audiometry was performed to measure the speech recognition threshold (SRT) and word recognition score. KS-WL-A was presented either through a live voice mode or recorded CD materials. Test words from Hahm's list were presented using the live voice mode only. Pure tone audiometry was also conducted for all subjects. RESULTS: Differences between the SRT and pure tone average were within 6 dB in all subgroups in all three stimulation methods, indicating high reliability of the SRT in both the conventional and Korean standard methods. The moderate, moderately severe, and severe hearing loss groups showed lower word recognition scores in the CD mode with KS-WL-A than with the two live voice modes. CONCLUSION: Both the live voice mode and CD mode showed reliable speech audiometry test results in normal and hearing-impaired subjects. Although the CD mode is recommended to standardize test methods and reduce test errors, the live voice mode might be more effective for patients with moderate to severe hearing loss.
Adult* ; Audiometry ; Audiometry, Speech* ; Compact Disks ; Hearing Loss ; Hearing Loss, Sensorineural ; Hearing* ; Humans ; Speech Discrimination Tests ; Speech Reception Threshold Test ; Voice

A method is well known to backup the necessary and useful data into CD-ROM. It is, however, difficult for multiple users to simultaneously access these CD-ROMs which are scattered. In this paper, we have developed the system of which many user can concurrently access some CD-ROMs which are scattered in several locations. The system developed in this paper can be operated under a client/sever network and in window 95 for an easily usage. The system has, now, evaluated very good in some library of university, official department, and hospital in korea. The developing of the system is, further, to extend CD-Recorder, Juke-Box, and so on.
CD-ROM* ; Korea

In the traditional cadaver dissection course, it is hard to demonstrate dissection skills to all the medical students because of limitations such as the high ratio of students to instructors and the lack of facilities. To overcome these limitations, we developed a digital anatomy dissection course. Through this system, it was possible to perform effective instruction of anatomic dissection. This method could provide the appropriate teaching in a short period of time. Furthermore, students can review the dissection course on digital files saved on a CD-ROM. Clinical cadaveric workshops can be provided by this method not only for students but also for continuing medical education for clinicians.
Cadaver ; CD-ROM ; Education, Medical, Continuing ; Humans ; Students, Medical

The authors have made a CD-ROM titled 'Atlas of Pathology (AP)' for medical students to understand histopathologic findings with ease. We used a 35 mm film scanner to convert an existing file into digital images. A pathologist and two professional programmers collaborated to create the program 'AtlasMaster 1.0' based on (IBM) PC for organization of previously captured digital images. Minimum system requirement for the 'AP' was Pentium II 166 MHz, 32 MB RAM, Windows 95 or 98, 800 600 resolution, 16-bit color, 20 speed CD-ROM drive. The 'AP' was composed of a execution file (Pathology_Atlas.exe), a DB file (pathology.mdb), and reference files (*.bmp, *.jpg, *.txt). The DB file contained fields for chapter, section, disease entity, and information for location of reference files. About 1,000 color images for various kinds of gross and microscopic pictures were stored in the CD-ROM and those were classified according to the chapters, sections, and disease entities. The 'AP' was easy to manipulate, and had advantages of self-learning for students. It could be applied to other fields in which many images were dealt with, such as histology, radiology, endoscopy, dermatology, and plastic surgery. The 'AP' was handy and very useful for medical students to study pathology and it would be a powerful self-learning tool.
CD-ROM* ; Dermatology ; Endoscopy ; Humans ; Pathology ; Students, Medical* ; Surgery, Plastic

PURPOSE: This study analyzed the effects of a CD-ROM educational program for the prevention of sexual violence in relation to the sexual knowledge of middle school students. METHOD: A one group, pre-test-post-test design was used. The subjects of this study were 171 middle school students in Kangwon Province, Korea. The questionnaire included 34 items relating to overall sexual knowledge, and included questions on sexual violence. The collected data were analyzed using the mean, standard deviation and paired-t tests. RESULT: There were significant differences in the sexual knowledge by demographic characteristics between the pre- and post-tests. Of the 34 items, 20 showed significant differences in the sexual knowledge between the pre- and post-tests. CONCLUSION: The overall level of sexual knowledge of the students increased after taking the CD-ROM educational program. Further testing will be required to determine the effects of the CD-ROM using a control group and random sampling.
CD-ROM* ; Gangwon-do ; Humans ; Korea ; Surveys and Questionnaires ; Sex Offenses*