Related Experiment Video
Updated: Aug 18, 2026

Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing
Published on: December 1, 2023
[EGG and acoustic test for the diagnosis of laryngeal diseases]
Jianqun Wang1, Xia Gao, Jian Wang
1Department of Otolaryngology, Drum Tower Hospital Affiliated to Medical College of Nanjing University.
Objective:
To explore the relationship between electroglottography/acoustic test parameter and disease diagnosis.
Method:
3.0 software by Dr. Speech was used to test synchronically the electroglottography and acoustic test parameter of 503 cases so as to make a statistical analysis and comparison.
Result:
The shimmer was similar with the jitter on the inspection of polyp of vocal cord and vocal nodules, but the shimmer was more susceptive than the jitter. Compared with the healthy group, mean F0, jitter and shimmer of polyp of vocal cord increased, while the Harmonic-to-Noise decreased, so did the vocal nodules and carcinoma of larynx. Compared with the normal, the contact index of carcinoma of larynx increased, but the contact quotient remained on the same level.
Conclusion:
EGG, acoustic test number comparison and wave change provide an objective quantized index for the diagnosis of laryngeal diseases.
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