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  • Title: Development of videostrobokymography for the quantitative analysis of laryngeal vibratory pattern.
    Author: Lee JS, Kim E, Park KS, Sung MY, Sung MW, Kim KH.
    Journal: Stud Health Technol Inform; 1998; 52 Pt 2():1022-4. PubMed ID: 10384614.
    Abstract:
    We developed a new analysis technique for the assessment of irregular vibratory movement of vocal folds. Successive frames of pre-recorded video images from videostroboscopy were transferred to computer memory and vibratory track of one selected point was described as a waveform by displaying the same lines of all frames along the vertical direction. Glottal area waveform, which was normalized with glottal length, was composed to quantitatively assess the overall vibratory pattern of vocal folds. By applying this technique, irregular vibratory patterns of multiple regions, such as asynchronized registration of glottal cycles, could be easily visualized. It would be possible to monitor and analyze the pathologic changes of vocal fold movement by means of this newly developed system.
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