The role of VSK in the assessment of voice disorders
Imaging techniques of the vocal fold (VF) vibration include laryngovideostroboscopy (LVS) and now high-speed digital imaging (HSDI). To obtain parametric assessment of the vibratory process, new supplementary techniques based on kymography are being developed. Currently these are: 1) digital kymography (DKG), 2) videokymography (VKG), and 3) videostrobokymography (VSK). Kymography enables assessment of vibrations of the VF at the selected glottic locations. Therefore, kymography creates a new diagnostic potential for the objective documentation and monitoring of VF vibrations.