What assessment is best for evaluating vocal fold vibratory dynamics during phonation?

Laryngeal videostroboscopy is an advanced technique specifically designed to evaluate vocal fold vibratory dynamics during phonation. This method utilizes a strobe light to create a slow-motion effect of the vocal folds in action, allowing clinicians to observe and assess the frequency and amplitude of vocal fold vibrations. By capturing the motion of the folds during sound production, it provides critical information regarding their function, appearance, and overall health, making it exceptionally valuable for diagnosing various voice disorders.

In contrast, videofluoroscopic assessment primarily focuses on swallowing mechanics and does not provide detailed information about vocal fold function. Nasoendoscopy allows for visualization of the nasal passages and the larynx but does not capture the vibratory patterns necessary for a comprehensive analysis of phonation. Ultrasound can be used in voice assessment to visualize certain aspects of the larynx and surrounding structures but lacks the ability to directly measure vocal fold vibratory dynamics in real time during phonation. Thus, laryngeal videostroboscopy stands out as the most appropriate assessment for this specific purpose.