Quantitative Measurement of the Three-dimensional Structure of the Vocal Folds and Its Application in Identifying the Type of Cricoarytenoid Joint Dislocation
| Autor: | Xinlin Xu, Jacob F. Reiss, Jack J. Jiang, Li Zhou, Jingan Wang, Peiyun Zhuang, Yong Wang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Patient-Specific Modeling Joint Dislocations 3d model Computed tomography Vocal Cords Cricoarytenoid Joint Cricoid Cartilage 030507 speech-language pathology & audiology 03 medical and health sciences Speech and Hearing Imaging Three-Dimensional 0302 clinical medicine Phonation Predictive Value of Tests medicine Humans In patient 030223 otorhinolaryngology Retrospective Studies Mathematics medicine.diagnostic_test Fold (geology) Anatomy Middle Aged LPN and LVN University hospital medicine.anatomical_structure Inhalation Otorhinolaryngology Vocal folds Female Joints Tomography X-Ray Computed 0305 other medical science Arytenoid Cartilage |
| Zdroj: | Journal of Voice. 33:611-619 |
| ISSN: | 0892-1997 |
| Popis: | The objective of this study was to quantitatively measure the three-dimensional (3D) structure of the vocal folds in normal subjects and in patients with different types of cricoarytenoid dislocation. We will analyze differences in parameters between the groups and also determine if any morphologic parameters possess utility in distinguishing the type and the degree of cricoarytenoid dislocation.This retrospective study was conducted using university hospital data.Subjects' larynges were scanned using dual-source computed tomography (CT). The normal subjects were divided into deep-inhalation and phonation groups, and patients with cricoarytenoid joint dislocation were divided into anterior-dislocation and posterior-dislocation groups. Membranous vocal fold length and width were measured directly on the thin-section CT images. Vocal fold and airway 3D models were constructed using Mimics software and used in combination to measure vocal fold thickness, subglottal convergence angle, and oblique angle of the vocal folds.The phonation group displayed a greater vocal fold width, greater oblique angle, thinner vocal folds, and a smaller subglottal convergence angle than those of the deep-inhalation group (P 0.05). The anterior-dislocation group displayed a smaller oblique angle and subglottal convergence angle than the posterior-dislocation group (P 0.05).The 3D structure of the vocal folds during deep inhalation and phonation can be accurately measured using dual-source CT and laryngeal 3D reconstruction. As the anterior-dislocation group yielded negative values for the oblique angle and the posterior-dislocation group yielded positive values, the oblique angle of the vocal folds may possess utility for distinguishing the type and for quantitatively determining the degree of cricoarytenoid dislocation. |
| Databáze: | OpenAIRE |
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