Quantitative Analysis of High-Speed Digital Imaging for the Elderly
The knowledge of an age-related change in vocal fold vibrations in normophonic subjects is important in the estimation of physiological age in voice, and in the discrimination between normality and abnormality. Furthermore, presbyphonia, a form of dysphonia resulting from aging, is increasing at a rapid pace against the backdrop of and aging society worldwide. Quantification of vibratory disturbance via high-speed digital imaging high-speed digital imaging (HSDI) can facilitate the clinical management of this pathological condition through better detection, estimation of severity, planning of therapeutic approach, and judgment of therapeutic result. This chapter summarizes features of HSDI in comparison with videostroboscopy, HSDI analysis methods, and characteristics of vocal fold vibrations in normal elderly subjects and patients with presbyphonia.
KeywordsVocal Fold Speed Index Open Quotient Normal Elderly Subject Vocal Fold Vibration
This chapter is based on the papers published in the Journal of Voice.
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