Asymmetry of the Vocal Folds in Patients With Vocal Fold Immobility

Individually Customized Implants for Laryngoplasty—Are They Possible?

“…[4][5][6][7] Since the advent of high-resolution CT scans, CT images can provide precise anatomical measures. 10 Implants with dimensions and shape calculated from CT scan data were effective in completely medializing the vocal fold in all cases in this study. This method has been shown to be reliable and simple to use.…”

Influence of level difference due to vocal folds angular asymmetry on auto-oscillating replicas

“…that α-ranges, for which h A ≤ 3 mm, i.e. vertical level difference observed during human phonation3 , extend up to contact regime II for all three replicas: α ≤ 13 • for EPI and α ≤ 17 • for both EPI and MRI. Therefore, partial contact (regime II) is of particular importance for phonation with UVFP.…”

Dynamic vibration mode decomposition of auto-oscillating vocal fold replicas without and with vertical tilting

“…The resulting vertical tilting is parameterised by angular asymmetry angle α. Imposing angular asymmetry in the range from 0 • up to 25 • results in a vertical level difference up to a few mm [12], which is of the same order of magnitude as observed in patients suffering from UVFP [2,3]. Furthermore, vertical tilting of a VF causes left-right VF positioning asymmetry whereas left-right VF tension and shape symmetry is maintained.…”