The successive line images were presented in real time on a commercial TV monitor, filling each video frame from top to bottom.
The system makes it possible to observe left-right asymmetries, open quotient, propagation of mucosal waves, movement of the upper and, in the closing phase, the lower margins of the vocal folds, etc.
Videokymography was developed in 1994 by Czech and Dutch scientists, Jan G. Švec and Harm K. Schutte, in collaboration with the Lambert Instruments company, as a low-cost, high-speed imaging method for examination of vocal fold vibrations.
[3][4] Subsequently Q. Qiu and colleagues founded the company Cymo, B.V. producing the videokymography camera along with other medical imaging products and became its director.
The process of videostroboscopy has been reported as successful in accuracy, revision, and treatment of diagnoses while its limitations have also been mentioned to involve its reliability on synchronization and inability to produce concrete vibratory cycles.
This brings direction and focus to the development of another detailed and analytical form of vocal fold visualization that is potentially an evolution of videokymography.