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Vocim--a system for measuring the larynx endoscopically
I J Johnson1, P N Carding, S Heywood
1Department of ENT, Freeman Hospital, Newcastle Upon Tyne, UK.
Clinical Otolaryngology and Allied Sciences
|August 1, 1996
Summary
A new system, Vocim, enables objective laryngeal measurements from flexible endoscopic examinations. This overcomes lens distortion and endoscope positioning issues, achieving high accuracy for clinical and research applications.
Area of Science:
- Otolaryngology
- Medical Imaging
- Biomedical Engineering
Background:
- Flexible endoscopy is standard for larynx examination, providing images but lacking objective measurement capabilities.
- Existing methods are limited by lens distortion and unreliable endoscope positioning within the larynx.
- Objective laryngeal measurements have significant research and clinical potential.
Purpose of the Study:
- To introduce a novel system (Vocim) for objective laryngeal measurements.
- To address challenges of lens distortion and endoscope positioning in flexible laryngoscopy.
- To validate the clinical applicability and accuracy of the Vocim system.
Main Methods:
- Theoretical principles behind overcoming lens distortion and determining endoscope position.
- Description of the specialized equipment developed for the Vocim system.
- Clinical trial design and execution to evaluate the Vocim system's performance.
Main Results:
- The Vocim system successfully overcomes inherent lens distortion.
- A reliable method for assessing the endoscope's relative position within the larynx is established.
- The first clinical trial demonstrated a low error rate of only 4% for the Vocim system.
Conclusions:
- The Vocim system provides a viable solution for objective laryngeal measurements.
- This technology bridges the gap between qualitative imaging and quantitative analysis in laryngoscopy.
- The demonstrated accuracy supports its use in both research and clinical settings for laryngeal assessments.