title: Low-cost high-speed imaging system for observing vocal fold vibration in voice disorders.
abstract: OBJECTIVE
  The aim of this study was to establish a method to observe vocal fold vibration using a low-cost high-speed laryngeal imaging system.
  
  
  METHODS
  We assembled a high-speed imaging system with a consumer digital camera and a rigid laryngeal endoscope. The camera can shoot digital images at a rate of 1,200 frames per second and be purchased for about USD 1,000 in Japan.
  
  
  RESULTS
  We examined the normal and pathological vocal folds of 215 subjects with our new system and analyzed the vocal fold vibration in these subjects by playback of a video and kymograph images.
  
  
  CONCLUSIONS
  Our high-speed laryngeal imaging system is highly cost-effective and can be a useful tool for examining the vocal folds of patients with voice disorders.
authors.affiliation: Department of Otolaryngology - Head and Neck Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan. zhangqiuhang@yahoo.com.cn
authors.forename: Kenichi
authors.initials: K
authors.lastname: Kaneko
authors.forename: Koichi
authors.initials: K
authors.lastname: Sakaguchi
authors.forename: Masato
authors.initials: M
authors.lastname: Inoue
authors.forename: Haruo
authors.initials: H
authors.lastname: Takahashi
mesh_terms: D003362:Cost-Benefit Analysis; D005260:Female; D006801:Humans; D007828:Laryngoscopy / Q000191:economics / Q000379:methods*; D007830:Larynx / Q000503:physiopathology*; D008297:Male; D012815:Signal Processing, Computer-Assisted; D014732:Vibration; D014743:Videotape Recording / Q000191:economics / Q000379:methods*; D014827:Vocal Cords / Q000503:physiopathology*; D014832:Voice Disorders / Q000503:physiopathology*