Laryngostrobovideography Using a Flexible Laryngofiberscope Performed in Conjunction with the Phonatory Examination

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. (Keio J Med 39(2): 102-105, June 1990). © 1990, The Keio Journal of Medicine. All rights reserved.