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Related Experiment Video

Updated: Jul 12, 2025

Minimally Invasive Murine Laryngoscopy for Close&#45;Up Imaging of Laryngeal Motion During Breathing and Swallowing
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Can Transcutaneous Laryngeal Ultrasonography Systematically Quantify Vocal Fold Movement?-A Feasibility Study.

Jing Yao1, Fusheng Zhou2, Lihui Cai3

  • 1Department of Otolaryngology-Head and Neck Surgery, Huashan Hospital, Fudan University, Shanghai, China.

Journal of Voice : Official Journal of the Voice Foundation
|October 22, 2023
PubMed
Summary
This summary is machine-generated.

Transcutaneous laryngeal ultrasonography (TLUSG) offers an objective method to measure vocal fold movement. This study successfully quantified laryngeal parameters during breathing and breath-holding in healthy adults.

Keywords:
LaryngoscopyQuantitative assessmentUltrasonographyVocal fold immobilityYoung adults

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Area of Science:

  • Otolaryngology
  • Medical Imaging
  • Anatomy

Background:

  • Vocal fold movement assessment is crucial, particularly after thyroidectomy.
  • Current methods lack objective quantification during perioperative periods.
  • Transcutaneous laryngeal ultrasonography (TLUSG) has potential for objective vocal fold analysis.

Purpose of the Study:

  • To establish a feasible and objective method for assessing vocal fold movement using TLUSG.
  • To quantify laryngeal parameters during different respiratory phases.

Main Methods:

  • A feasibility study involving 40 healthy adult volunteers.
  • TLUSG was performed during calm breathing and breath-holding.
  • Measurements included vocal fold angle, length, and distances of laryngeal structures using built-in ultrasonic functions.

Main Results:

  • Satisfactory ultrasonic images were obtained in all participants.
  • No significant differences in laryngeal parameters were found between left and right sides.
  • Statistically significant differences were observed in laryngeal parameters between inspiratory and breath-holding phases (P < 0.05).

Conclusions:

  • TLUSG provides an objective method to measure positional parameters of the vocal fold, arytenoid cartilage, and false vocal fold.
  • Differences in these parameters before and after vocal fold movement can be reliably obtained.
  • This technique offers a valuable tool for objective vocal fold assessment.