Evaluation of stereoscopic medical video content on an autostereoscopic display for undergraduate medical education

Justus Ilgner, Takashi Kawai, Takashi Shibata, Takashi Yamazoe, Martin Westhofen

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    15 Citations (Scopus)

    Abstract

    Introduction: An increasing number of surgical procedures are performed in a microsurgical and minimally-invasive fashion. However, the performance of surgery, its possibilities and limitations become difficult to teach. Stereoscopic video has evolved from a complex production process and expensive hardware towards rapid editing of video streams with standard and HDTV resolution which can be displayed on portable equipment. This study evaluates the usefulness of stereoscopic video in teaching undergraduate medical students. Material and methods: From an earlier study we chose two clips each of three different microsurgical operations (tympanoplasty type III of the ear, endonasal operation of the paranasal sinuses and laser chordectomy for carcinoma of the larynx). This material was added by 23 clips of a cochlear implantation, which was specifically edited for a portable computer with an autostereoscopic display (PC-RD1-3D, SHARP Corp., Japan). The recording and synchronization of left and right image was performed at the University Hospital Aachen. The footage was edited stereoscopically at the Waseda University by means of our original software for non-linear editing of stereoscopic 3-D movies. Then the material was converted into the streaming 3-D video format. The purpose of the conversion was to present the video clips by a file type that does not depend on a television signal such as PAL or NTSC. 25 4th year medical students who participated in the general ENT course at Aachen University Hospital were asked to estimate depth clues within the six video clips plus cochlear implantation clips. Another 25 4th year students who were shown the material monoscopically on a conventional laptop served as control. Results: All participants noted that the additional depth information helped with understanding the relation of anatomical structures, even though none had hands-on experience with Ear, Nose and Throat operations before or during the course. The monoscopic group generally estimated resection depth to much lesser values than in reality. Although this was the case with some participants in the stereoscopic group, too, the estimation of depth features reflected the enhanced depth impression provided by stereoscopy. Conclusion: Following first implementation of stereoscopic video teaching, medical students who are inexperienced with ENT surgical procedures are able to reproduce depth information and therefore anatomically complex structures to a greater extent following stereoscopic video teaching. Besides extending video teaching to junior doctors, the next evaluation step will address its effect on the learning curve during the surgical training program.

    Original languageEnglish
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    Volume6055
    DOIs
    Publication statusPublished - 2006
    EventStereoscopic Displays and Virtual Reality Systems XIII - San Jose, CA
    Duration: 2006 Jan 162006 Jan 19

    Other

    OtherStereoscopic Displays and Virtual Reality Systems XIII
    CitySan Jose, CA
    Period06/1/1606/1/19

    Fingerprint

    Medical education
    clips
    Teaching
    education
    Display devices
    Students
    students
    evaluation
    editing
    ear
    Portable equipment
    High definition television
    implantation
    portable equipment
    paranasal sinuses
    Television
    stereoscopy
    learning curves
    Surgery
    larynx

    Keywords

    • Medical education
    • Microsurgery
    • Otorhinolaryngology
    • Stereoscopy
    • Undergraduate Training

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Condensed Matter Physics

    Cite this

    Ilgner, J., Kawai, T., Shibata, T., Yamazoe, T., & Westhofen, M. (2006). Evaluation of stereoscopic medical video content on an autostereoscopic display for undergraduate medical education. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6055). [605506] https://doi.org/10.1117/12.647591

    Evaluation of stereoscopic medical video content on an autostereoscopic display for undergraduate medical education. / Ilgner, Justus; Kawai, Takashi; Shibata, Takashi; Yamazoe, Takashi; Westhofen, Martin.

    Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6055 2006. 605506.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Ilgner, J, Kawai, T, Shibata, T, Yamazoe, T & Westhofen, M 2006, Evaluation of stereoscopic medical video content on an autostereoscopic display for undergraduate medical education. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6055, 605506, Stereoscopic Displays and Virtual Reality Systems XIII, San Jose, CA, 06/1/16. https://doi.org/10.1117/12.647591
    Ilgner J, Kawai T, Shibata T, Yamazoe T, Westhofen M. Evaluation of stereoscopic medical video content on an autostereoscopic display for undergraduate medical education. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6055. 2006. 605506 https://doi.org/10.1117/12.647591
    Ilgner, Justus ; Kawai, Takashi ; Shibata, Takashi ; Yamazoe, Takashi ; Westhofen, Martin. / Evaluation of stereoscopic medical video content on an autostereoscopic display for undergraduate medical education. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6055 2006.
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