scholarly journals Multivariate Analysis of Vocal Fold Vibrations on Various Voice Disorders Using High-Speed Digital Imaging

2021 ◽  
Vol 11 (14) ◽  
pp. 6284
Author(s):  
Akihito Yamauchi ◽  
Hiroshi Imagawa ◽  
Hisayuki Yokonishi ◽  
Ken-Ichi Sakakibara ◽  
Niro Tayama
Keyword(s):  
Multivariate Analysis ◽  
Digital Imaging ◽  
Vocal Fold ◽  
High Speed ◽  
Voice Disorders ◽  
Normal Subjects ◽  
Voice Disorder ◽  
Coefficient Of Determination ◽  
Laryngeal Diseases ◽  
Disease Specific

Although many quantitative parameters have been devised to describe abnormalities in vocal fold vibration, little is known about the priority of these parameters. We conducted a prospective study using high-speed digital imaging to elucidate disease-specific key parameters (KPs) to characterize the vocal fold vibrations of individual voice disorders. From 304 patients with various voice disorders and 46 normal speakers, high-speed digital imaging of a sustained phonation at a comfortable pitch and loudness was recorded and parameters from visual-perceptual rating, laryngotopography, digital kymography, and glottal area waveform were calculated. Multivariate analysis was then applied to these parameters to elucidate the KPs to explain each voice disorder in comparison to normal subjects. Four key parameters were statistically significant for all laryngeal diseases. However, the coefficient of determination (R2) was very low (0.29). Vocal fold paralysis (8 KPs, R2 = 0.76), sulcus vocalis (4 KPs, R2 = 0.74), vocal fold scarring (1 KP, R2 = 0.68), vocal fold atrophy (6 KPs, R2 = 0.53), and laryngeal cancer (1 KP, R2 = 0.52) showed moderate-to-high R2 values. The results identified different KPs for each voice disorder; thus, disease-specific analysis is a reasonable approach.

Multivariate Analysis of Vocal Fold Vibrations in Normal Speakers Using High-Speed Digital Imaging

2021 ◽  
Author(s):  
Akihito Yamauchi ◽  
Hiroshi Imagawa ◽  
Hisayuki Yokonishi ◽  
Ken-Ichi Sakakibara ◽  
Niro Tayama
Keyword(s):  
Multivariate Analysis ◽  
Digital Imaging ◽  
Vocal Fold ◽  
High Speed

Vocal Fold Vibratory Characteristics in Normal Female Speakers From High-Speed Digital Imaging

2012 ◽  
Vol 26 (2) ◽  
pp. 239-253 ◽  
Author(s):  
Kartini Ahmad ◽  
Yuling Yan ◽  
Diane M. Bless
Keyword(s):  
Digital Imaging ◽  
Vocal Fold ◽  
High Speed ◽  
Normal Female

Videostrobolaryngoscopy of Mucus Layer during Vocal Fold Vibration in Patients with Laryngeal Tension-Fatigue Syndrome

2002 ◽  
Vol 111 (6) ◽  
pp. 537-541 ◽  
Author(s):  
Tzu-Yu Hsiao ◽  
Chia-Ming Liu ◽  
Kai-Nan Lin
Keyword(s):  
Mechanical Properties ◽  
Vocal Fold ◽  
Rough Surfaces ◽  
Voice Disorders ◽  
Vocal Folds ◽  
Voice Disorder ◽  
Mucus Layer ◽  
Vocal Fold Vibration ◽  
Fatigue Syndrome ◽  
Functional Dysphonia

The mucus layer on the vocal folds was examined by videostrobolaryngoscopy in patients with laryngeal tension-fatigue syndrome, a chronic functional dysphonia due to vocal abuse and misuse. Besides the findings in previous reports (such as abnormal glottal closure, phase or amplitude asymmetry, and the irregular mucosal wave), the vocal folds during vibration had an uneven mucus surface. The occurrence of an uneven mucus layer on vocal folds was significantly greater in subjects with this voice disorder (83% or 250 of 301 patients in this series) than in those without voice disorders (18.5% or 5 of 27). The increase of mucus viscosity, mucus aggregation, and the formation of rough surfaces on the vocal folds alter the mechanical properties that contribute to vibration of the cover of the vocal folds, and thereby worsen the symptoms of dysphonia in patients with laryngeal tension-fatigue syndrome.

scholarly journals Common mistakes in the diagnosis of laryngeal pathology

2020 ◽  
Vol 19 (2) ◽  
pp. 93-99
Author(s):  
A. I. Kryukov ◽  
◽  
S. G. Romanenko ◽  
O. G. Pavlikhin ◽  
E. V. Lesogorova ◽  
...  
Keyword(s):  
Laryngeal Cancer ◽  
Correct Diagnosis ◽  
Voice Quality ◽  
Voice Disorders ◽  
Voice Disorder ◽  
Laryngeal Diseases ◽  
Root Cause ◽  
Incorrect Diagnosis ◽  
Reinke’S Edema ◽  
Chronic Laryngitis

The article The article describes in detail the main stages of the diagnosis of voice disorders with an indication of the methods and major errors leading to an incorrect diagnosis. Since in some cases, impaired voice quality is the first and/ or only symptom of concomitant diseases of organs or systems of various etiologies, an expanded diagnostic search is required to make a correct diagnosis. The features of receiving of complaints and medical history from patients with laryngeal diseases, the guidelines for laryngoscopy are described. A description of the laryngoscopic vew is presented, which helps in the diagnosis of the initial stages of Reinke’s edema, hyperplastic laryngitis and early stages of laryngeal cancer. The relationship between the functional and organic pathology of the larynx is very close, it can be difficult to understand the root cause of voice disorder, this leads to incorrect treatment tactics, the progression and relapse of the disease. The causes of laryngeal diseases of an organic and functional nature, the features of the clinical picture and the differential diagnosis of voice disorders are considered. Cases of diagnosis, a clinic of chronic laryngitis, laryngomycosis, and laryngeal cancer are described; the main approaches to the treatment of laryngeal diseases are presented. The article will be useful to otorhinolaryngologists, phoniatricians of outpatient and inpatient care.

Analysis of vocal fold vibration on prosodic events by high speed digital imaging systems

2002 ◽  
Vol 112 (5) ◽  
pp. 2445-2445
Author(s):  
Masanobu Kumada ◽  
Noriko Kobayashi ◽  
Hajime Hirose ◽  
Niro Tayama ◽  
Hiroshi Imagawa ◽  
...  
Keyword(s):  
Digital Imaging ◽  
Vocal Fold ◽  
High Speed ◽  
Imaging Systems ◽  
Vocal Fold Vibration ◽  
Digital Imaging Systems

Usefulness of high-speed digital imaging (HSDI) in the diagnosis of oedematous – hypertrophic changes of the larynx in people using voice occupationally

2017 ◽  
Vol 71 (4) ◽  
pp. 19-25 ◽  
Author(s):  
Bożena Kosztyła-Hojna ◽  
Diana Moskal ◽  
Anna Kuryliszyn-Moskal ◽  
Anna Andrzejewska ◽  
Anna Łobaczuk-Sitnik ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Digital Imaging ◽  
Vocal Fold ◽  
High Speed ◽  
Vocal Folds ◽  
Intercellular Spaces ◽  
Vacuolar Degeneration ◽  
Transmission Electron ◽  
Tem Method ◽  
Hypertrophic Changes

Introduction. The aim of the study is the evaluation of the usefulness of High-Speed Digital Imaging (HSDI) in the diagnosis of organic dysphonia in a form of oedematous-hypertrophic changes of vocal fold mucosa, morphologically confirmed by Transmission Electron Microscopy (TEM) method in patients working with voice occupationally. Material and methods. The group consisted of 30 patients working with voice occupationally with oedematous-hypertrophic changes of vocal fold mucosa. Parameters of vocal folds vibrations were evaluated using HSDI technique with a digital HS camera, HRES Endocam Richard Wolf GmbH. The image of vocal folds was recorded with a rate of 4000 frames per second. Postoperative material of the larynx was prepared in a routine way and observed in transmission electron microscope OPTON 900–PC. Results. HSDI technique allows to assess the real vibrations of vocal folds and determine many parameters. The results of TEM in the postoperative material showed destruction of epithelial cells with severe vacuolar degeneration, the enlargement of intercellular spaces and a large number of blood vessels in the stroma, which indicates the presence of oedematous-hypertrophic changes of the larynx. Discussion. The ultrastructural assessment confirm the particular usefulness of HSDI method in the diagnosis of organic dysphonia in a form of oedematous-hypertrophic changes. Key words: High-Speed Digital Imaging, oedematous-hypertrophic changes, vocal fold mucosa, larynx

scholarly journals Low-Cost High-Speed Imaging System for Observing Vocal Fold Vibration in Voice Disorders

ORL ◽  
2012 ◽  
Vol 74 (4) ◽  
pp. 208-210 ◽  
Author(s):  
Kenichi Kaneko ◽  
Koichi Sakaguchi ◽  
Masato Inoue ◽  
Haruo Takahashi
Keyword(s):  
Vocal Fold ◽  
High Speed ◽  
Imaging System ◽  
Low Cost ◽  
Voice Disorders ◽  
High Speed Imaging ◽  
Vocal Fold Vibration

The influence of water resistance therapy on vocal fold vibration: a high-speed digital imaging study

2016 ◽  
Vol 42 (3) ◽  
pp. 99-107 ◽  
Author(s):  
Marco Guzman ◽  
Anne-Maria Laukkanen ◽  
Louisa Traser ◽  
Ahmed Geneid ◽  
Bernhard Richter ◽  
...  
Keyword(s):  
Digital Imaging ◽  
Vocal Fold ◽  
High Speed ◽  
Water Resistance ◽  
Imaging Study ◽  
Vocal Fold Vibration ◽  
Influence Of Water
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