Recent Advances in Examination of Vocal Fold Vibration
10.22469/jkslp.2021.32.1.1
- Author:
Jin-Choon LEE
1
;
Inho BAE
Author Information
1. Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Pusan National University, Yangsan, Korea
- Publication Type:Review Article
- From:Journal of the Korean Society of Laryngology Phoniatrics and Logopedics
2021;32(1):1-8
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Human vocal cords vibrate as quickly as 100–250 times per second, so it is impossible to observe them with normal endoscopic diagnostic equipment. High-speed videolaryngoscopy (HSV) allows the visualization of non-periodic vibratory motion of vocal fold beyond the limitation of videostroboscopy. New developed post-processing methods that converts HSV to two-dimensional videokymography (2D VKG) using U-medical image-processing software can provide quantitative information on vocal fold mucosa vibration. Multifunctional laryngeal examination system is composed of 3 kinds of examinations such as HSV, 2D scanning digital kymography (2D DKG) and line scanning digital kymography (DKG). Evaluation of entire vocal cord vibratory pattern in each cord is possible using 2D DKG and a faster and more reliable quantitative information can be obtained. As this system is used in clinical and research, it is expected to bring much advances to the diagnosis of voice disorders. In this review, I will introduce the principles and advantages on examination of the vocal fold vibration, which is in the spotlight recently, and proceed with the literature review.
