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Have We Solved Glottis Segmentation? Review and Commentary.
J Voice
December 2024
Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology Head and Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany.
Quantification of voice physiology has been a key research goal. Segmenting the glottal area to describe the vocal fold motion has seen increased attention in the last two decades. However, researchers struggled to fully automatize the segmentation task.
View Article and Find Full Text PDFA computational study of the influence of thyroarytenoid and cricothyroid muscle interaction on vocal fold dynamics in an MRI-based human laryngeal model.
Biomech Model Mechanobiol
October 2024
Department of Mechanical Engineering, Kate Gleason College of Engineering, Rochester Institute of Technology, Rochester, NY, USA.
A human laryngeal model, incorporating all the cartilages and the intrinsic muscles, was reconstructed based on MRI data. The vocal fold was represented as a multilayer structure with detailed inner components. The activation levels of the thyroarytenoid (TA) and cricothyroid (CT) muscles were systematically varied from zero to full activation allowing for the analysis of their interaction and influence on vocal fold dynamics and glottal flow.
View Article and Find Full Text PDFUtility of Ultrahigh-Resolution Computed Tomography for Laryngeal Reconstructive Surgery.
Laryngoscope
November 2024
Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.
Objective: Unilateral vocal fold paralysis (UVFP) presents as incomplete glottal closure and leads to breathy hoarseness. Various treatments, including laryngeal framework surgery (type 1 thyroplasty [TP1] and arytenoid adduction [AA]), have been devised to correct this condition. Ultrahigh-resolution computed tomography (U-HRCT) allows detailed three-dimensional imaging of the larynx, which aids our understanding of vocal fold motion disorders.
View Article and Find Full Text PDFVisualization and Analysis of Vocal Fold Dynamics in Various Voice Disorders.
J Voice
May 2024
The Voice Wellness Centre, A Unit of Macrocosmos Creations Pvt Ltd, Bengaluru, Karnataka, India. Electronic address:
Article Synopsis
- The study investigates glottal dynamics in vocal fold disorders (leukoplakia, laryngitis, papilloma) using visualization technologies like PVG and GVG to improve diagnosis and classification.
- The research employs high-speed video endoscopy and various imaging techniques to analyze the vibratory patterns of affected vocal folds, revealing distinct differences in their behavior.
- Ultimately, the findings suggest that these advanced visualization methods provide crucial insights into vocal fold dynamics, supporting better understanding and assessment of voice disorders compared to traditional methods.
The Role of EGG in Identifying Prevocalic Glottal Stop.
J Voice
February 2024
Department of Oral & Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China. Electronic address:
Objective: The aim of the study is to investigate the use of incidences and characteristics of Prevocalic Electroglottographic Signal (PVES) derived from electroglottography (EGG) in characterizing glottal stops (GS) in cleft palate speech.
Methods: Mandarin nonaspirated monosyllabic first-tone words were used for the speech sampling procedure. A total of 1680 utterances (from 83 patients with repaired cleft palates) were divided into three categories based on the results of auditory-perceptual evaluation of recorded speech sounds by three independent reviewers: [Category A (absence of GS agreed by all three reviewers) (n = 1192 tokens), Category B (two out of three reviewers agreed on the presence of a GS) (n = 181 tokens) and Category C (all three reviewers agreed on the presence of a GS) (n = 307 tokens)].
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