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상용화 된 고속카메라와 후두내시경을 이용한 성대촬영 방법의 소개

Other Titles
 Commercially Available High-Speed Cameras Connected with a Laryngoscope for Capturing the Laryngeal Images 
 남도현  ;  최홍식 
 Journal of the Korean Society of Logopedics and Phoniatrics (대한음성언어의학회지), Vol.21(2) : 133-138, 2010 
Journal Title
 Journal of the Korean Society of Logopedics and Phoniatrics (대한음성언어의학회지) 
Issue Date
High speed camera ; Vocal fold ; Kymography
Background and Objectives : High-speed imaging can be useful in studies of linguistic and artistic singing styles, and laryngeal examination of patients with voice disorders, particularly in irregular vocal fold vibrations. In this study, we introduce new laryngeal imaging systems which are commercially available high speed cameras connected with a laryngoscope. Materials and Method : The laryngeal images were captured from three different types of cameras. First, the adapter was made to connect with laryngoscope and Casio EX-F1 to capture the images using $2{\times}150$ Watt Halogen light source (EndoSTROB) at speeds of 1,200 tps (frame per second)($336{\times}96$). Second, Phantom Miro ex4 was used to capture the digital laryngeal images using Xenon Nova light source 175 Watt (STORZ) at speeds of 1,920 fps ($512{\times}384$). Finally, laryngeal images were captured using MotionXtra N-4 with 250 Watt halogen lamp (Olympus CLH-250) light source at speeds of 2,000tps ($384{\times}400$) by connecting with laryngoscope. All images were transformed into the Kymograph using KIPS (Kay's image processing Software) of Kay Pentex Inc. Results: Casio EX-F1 was too small to adjust the focus and screen size was diminished once the images were captured despite of high resolution images. High quality of color images could be obtained with Phantom Miro ex4 whereas good black and white images from Motion Xtra N-4 Despite of some limitations of illumination problems, limited recording time capacity, and time consuming procedures in Phantom Miro ex4 and Motion Xtra N-4, those portable devices provided high resolution images. Conclusion : All those high speed cameras could capture the laryngeal images by connecting with laryngoscope. High resolution images were able to be captured at the fixed position under the good lightness. Accordingly, these techniques could be applicable to observe the vocal fold vibration properties in the clinical practice
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
5. Research Institutes (연구소) > Institute of Logopedics and Phoniatrics (음성언어의학연구소) > 1. Journal Papers
Yonsei Authors
Nam, Do Hyun(남도현)
Choi, Hong Shik(최홍식)
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