The Comparison of Glottal Area Waveform between Normal Person and Patient with Vocal Lesions

Yoo, Young-Sam; Rosen, Clark A.

J Korean Soc Laryngol Phoniatr Logop > Volume 16(1); 2005 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2005;16(1): 5-9.

정상인과 후두질환 환자에서 Glottal Area Waveform의 차이에 관한 연구

유영삼¹, ²

¹인제대학교 의과대학 상계백병원 이비인후과학교실
²

The Comparison of Glottal Area Waveform between Normal Person and Patient with Vocal Lesions

Young-Sam Yoo¹, Clark A. Rosen²

¹Department of Otolaryngology, Sanggye Paik Hospital, Inje University
²University of Pittsburgh Voice Center

ABSTRACT

Background and Objectives
: Glottal area waveform(GAW) shows the plot of glottal area versus time through the 1 cycle. This study is designed to see how it can be applied to laryngeal patients. Material and Methods : A GAW analysis was peformed on 11 patients before and after surgery and 22 persons without laryngeal problems were recruited for control. Acoustic and aerodynamic analysis with VHI(voice handicap index) evaluation were performed.
Results.
Significant changes in baseline offset, gross closing rate and VHI were observed postoperatively. Other parameters were changed but insignificant.
Conclusion
: GAW maybe used to evaluate patient with voice problems.

KEY WORDS： Glottal area waveform(GAW);Videostroboscopy;