Objective Measures of Stroboscopy and High-Speed Video
1Department of Otolaryngology Head and Neck Surgery, Icahn School of Medicine, New York, New York, USA, peakwoo@peakwoo.com.
Advances in Oto-Rhino-Laryngology
|November 9, 2020
Summary
Videostroboscopy and high-speed imaging offer objective laryngeal function evaluation for voice disorders. These methods analyze vocal fold vibration, aiding diagnosis of neurolaryngological conditions like tremor and paralysis.
Area of Science:
- Laryngology
- Speech Science
- Medical Imaging
Background:
- Laryngeal function evaluation is crucial for voice disorders.
- Objective assessment methods are needed for neurolaryngological conditions affecting voice.
Purpose of the Study:
- To detail the application of videostroboscopy and high-speed imaging for laryngeal function analysis.
- To highlight the diagnostic capabilities of these digital imaging techniques in voice disorders.
Main Methods:
- Videostroboscopy analysis using edge tracking software to derive glottal area waveform.
- High-speed video analysis with digital kymography and signal processing for vocal fold vibratory function.
Main Results:
- Videostroboscopy provides data on glottal cycle efficiency, open/closed phases, and vibration symmetry.
- High-speed imaging enables detailed analysis of oscillation onset, diplophonia, tremor, and voice breaks, including frequency and power relationships.
Conclusions:
- Digital analysis of videostroboscopy and high-speed imaging provides objective measures of laryngeal function.
- These advanced imaging techniques are valuable tools for diagnosing and understanding voice disorders, particularly those related to neurolaryngological conditions.
