Videostrobokymographic Analysis of Benign Vocal Fold Lesions

Abstract

This study demonstrated that VSK could generate clear quantitative documentation of fine vibrations of vocal folds in many different types of benign lesion. VSK has the potential to be an effective tool for the quantitative analysis of vibratory patterns of vocal folds in clinical settings.

Quantitative Analysis of Digital Videokymography: A Preliminary Study on Age- and Gender-Related Difference of Vocal Fold Vibration in Normal Speakers

“…Because N W -mucosal wave magnitude mean and N G -mucosal wave persistence mean are considered to reflect different characteristics of mucosal wave, it is advisable to evaluate both parameters in the assessment of laryngeal pathologies with possible alteration of mucosal wave. In this study, the open quotient was found to be 0.55 ± 0.15 at a speaking F 0 at the midpoint of the membranous portion, which generally matched the values in some previous reports, 23,28,31,38,39 but was rather smaller than those in other reports (Table 7). 5,20 These differences may stem from differences in the data acquisition technique (videostroboscopy 23,39 or HSDI 28,31,38 ), the method of analysis (DKG, 31,38 glottal width waveform, 5 or glottal area waveform 39 ), monitored longitudinal level, 12,38 or variation in the examination conditions.…”

“…N GL -IGW difference was calculated as jleft-half IGW À right-half IGWj 3 100/ (VFL 3 glottal cycle) (%), and AI was calculated as (left IGW À right IGW) 3 100/(left IGW + right IGW) (%). 15,28 Aerodynamic studies and acoustic analysis Vocal function and voice quality were evaluated by measuring aerodynamic and acoustic parameters. Aerodynamic parameters included the maximum phonation time (MPT), mean flow rate (MFR) and laryngeal resistance measured by the Nagashima PE-77E Phonatory Function Analyzer (Nagashima Medical Inc., Tokyo, Japan).…”

Videostrobokymography and phonovibrogram as a new methods for analysis of vocal fold vibration

“…Jest wartościowym uzupełnieniem klasycznej stroboskopii w diagnostyce zaburzeń głosu zarówno o podłożu organicznym, jak i czynnościowym [11][12][13].…”

“…Wideostrobokimografia znajduje również zastosowanie jako badanie uzupełniające w różnego rodzaju patologiach dotyczących fałdów głosowych [11][12][13]. Jedną z nich jest niedomykalność fonacyjna, którą stwierdza się, kiedy na przekrojach kimograficznych między wierzchołkami przeciwległych fal przesunięcia brzeżnego znajduje się przerwa, o ciemnym kolorze (ryc.…”

Estabilização de imagens de videolaringoscopia

“…A disfoniaé um sintoma decorrente de patologias como nódulos, pólipos, paralisias e edemas nas pregas vocais que contribuem com as alterações dos parâmetros fonatórios (Kim et al, 2003), sendo que em, alguns casos, intervenções cirúrgicas são necessárias.…”