Stroboscopy is one of the most advanced techniques to evaluate the vocal cord structure in detail. It is an essential tool for the evaluation of mucosal waves and the pliability of the tissue of the vocal fold cover. Minor alterations in the normal waveform may provide the only sign that there is a mechanical problem.

 

Normal vocal folds vibrate between 100-300 times per second and conventional imaging cannot see the vibration and waveform of their motion. Stroboscope enables us to see the waveform and motion of the folds in slow motion. The flashes of light from the stroboscope are synchronized to the vocal fold vibration at a slightly slower speed, allowing the examiner to observe vocal fold vibration during sound production in what appears to be slow motion.

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The Olympus StrobeLED opens up new quality dimensions in stroboscopy. With its advanced LED technology and the reliable stroboscopy algorithm due to the Dual-Filter-System, the stroboscopy light source generates an excellent image quality. Within milliseconds the system picks up frequencies and turns them into an optimal illuminated and sharp image or slow motion playback of the vibrating vocal folds. The extremely fast and reliable frequency recognition enables the examination even of voices that are difficult to detect. 

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With our experienced Laryngologist and cutting edge technology we can evaluate voice and vocal lesions in extreme detail:

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• Evaluate different pitches and various loudness levels.

• Use moving mode and fixed mode to see static and dynamic changes in structure and function.

• See the pattern of mucosal waves 

• Evaluate several parameters of the vibration cycle, including fundamental frequency, periodicity, closure of the glottis, and vocal fold symmetry.

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Studies have shown that performing stroboscopy contributes to the diagnosis of laryngeal disease in approximately 1 in every 3 patients who would have remained undetected.