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Laryngostrobovideography using a flexible laryngofiberscope performed in conjunction with the phonatory examination
1Department of Otolaryngology, School of Medicine, Keio University, Tokyo, Japan.
Abstract:
The phonatory examination was performed while monitoring vocal fold vibration by laryngostrobovideography. Vocal fold vibration was video-taped by a laryngostroboscope and flexible laryngofiberscope inserted through the nasal cavity. Simultaneously, the phonatory examination was conducted with a phonation analyzer. The data were entered into a personal microcomputer via an A/D converter and analyzed to obtain the parameters of sound pitch, sound intensity and mean expiratory air flow volume, which were superimposed on the color video monitor screen.
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