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At least 127 records · Page 7Linked to original sources
PubMed1997

[Methodological aspects of observations of rapid tympanic membrane movements due to changes in static pressure (Valsalva maneuver) using digital high speech video recordings].

BACKGROUND: CCD-high speed camera systems are used to record high frequency videoclips. Introducing this technology in the analysis of eardrum motions, fast motions of the eardrum can be taped using an endoscope. METHODS: Records of the eardrum were made under specific static pressure conditions during the Valsalva maneuver. Initial experience with the help of a Kodak image (I 3) Ektapro 1000 Motion Analyzer allowed only conventional video signal processing and storage. A new data interface makes it possible to save and process the complete videoclip digitally. RESULTS: Using an image processing workstation and special mathematical algorithms, three-dimensional computer animations of rapid eardrum motions on static pressure can be performed. The present study describes different animations of fast motion eardrum movements. CONCLUSIONS: Digital high-speed video imaging is a suitable method to describe rapid eardrum motions on static pressure (Valsalva maneuver). It is possible to visualize the motion of the eardrum over time on the fast Valsalva movement at high resolution.

Algorithms↗
PubMedDate not supplied

[A computer method for the evaluation of Paramecium motor activity using video records of their movement].

A method for the evaluation of Paramecium caudatum motility was proposed as a tool for the investigation of magnetobiological as well as other physical and chemical effects. The microscopically observed movement of paramecia is recorded and processed using a special software program. The protozoan motility is determined as a function of their mean velocity in a definite time. The main advantages of the method are that it is easily modified for determining various characteristics of the motor activity of paramecia and that the video data obtained can be reused.

Animals↗
PubMed2005

Feedback on video recorded consultations in medical teaching: why students loathe and love it - a focus-group based qualitative study.

BACKGROUND: Feedback on videotaped consultations is a useful way to enhance consultation skills among medical students. The method is becoming increasingly common, but is still not widely implemented in medical education. One obstacle might be that many students seem to consider this educational approach a stressful experience and are reluctant to participate. In order to improve the process and make it more acceptable to the participants, we wanted to identify possible problems experienced by students when making and receiving feedback on their video taped consultations. METHODS: Nineteen of 75 students at the University of Bergen, Norway, participating in a consultation course in their final term of medical school underwent focus group interviews immediately following a video-based feedback session. The material was audio-taped, transcribed, and analysed by phenomenological qualitative analysis. RESULTS: The study uncovered that some students experienced emotional distress before the start of the course. They were apprehensive and lacking in confidence, expressing fear about exposing lack of skills and competence in front of each other. The video evaluation session and feedback process were evaluated positively however, and they found that their worries had been exaggerated. The video evaluation process also seemed to help strengthen the students' self esteem and self-confidence, and they welcomed this. CONCLUSION: Our study provides insight regarding the vulnerability of students receiving feedback from videotaped consultations and their need for reassurance and support in the process, and demonstrates the importance of carefully considering the design and execution of such educational programs.

Adult↗
PubMed1988

[Literature search in data banks using a video recording system].

It is now easy to search from any site for literature stored in large databases. This article describes the possibility of retrieving literature from the database maintained at the Deutsches Institut für medizinische Dokumentation und Information (DIMDI) by means of a personal computer and BTX.

Computer Communication Networks↗