Table 7.
Reasons for low confidence or inability to rate vibratory features are categorized based on whether they are technology-based reasons or anatomy/physiology-based reasons. Percentages were calculated out of the total number for a particular feature that showed low or no confidence. For example: using VS, raters indicated they were “Not Confident” for 102 ratings, 9 of which (or 9%) were attributed to “dark image obscures feature”. Raters were allowed to indicate more than one reason for low or no confidence. Therefore, percentages may add up to greater than 100%.
| Reason for Low Rater Confidence | Rater “Not Confident” |
Rater “Cannot Rate” |
||||||
|---|---|---|---|---|---|---|---|---|
| VS |
SS |
VS |
SS |
|||||
| Count | % | Count | % | Count | % | Count | % | |
| Technology-Based Reasons | ||||||||
| Mucosal Wave | ||||||||
| Dark image obscures feature | 9/102 | 9 | 8/104 | 8 | 0/51 | 0 | 0/19 | 0 |
| Image quality obscures feature | 24/102 | 24 | 37/104 | 36 | 2/51 | 4 | 2/19 | 11 |
| Asynchronicity obscures feature | 44/102 | 43 | 9/104 | 9 | 46/51 | 90 | 12/19 | 63 |
| Scope angle obscures/distorts feature | 7/102 | 7 | 7/104 | 7 | 1/51 | 2 | 1/19 | 5 |
| Amplitude | ||||||||
| Dark image obscures feature | 0/109 | 0 | 0/68 | 0 | 0/21 | 0 | 0/7 | 0 |
| Image quality obscures feature | 8/109 | 7 | 4/68 | 6 | 0/21 | 0 | 0/7 | 0 |
| Asynchronicity obscures feature | 56/109 | 51 | 21/68 | 31 | 15/21 | 71 | 4/7 | 57 |
| Scope angle obscures/distorts feature | 30/109 | 28 | 7/68 | 10 | 2/21 | 10 | 0/7 | 0 |
| Left-Right Phase Asymmetry | ||||||||
| Dark image obscures feature | 1/49 | 2 | 0/25 | 0 | 0/34 | 0 | 0/17 | 0 |
| Image quality obscures feature | 0/49 | 0 | 2/25 | 8 | 0/34 | 0 | 1/17 | 6 |
| Asynchronicity obscures feature | 31/49 | 63 | 6/25 | 24 | 30/34 | 88 | 13/17 | 76 |
| Scope angle obscures/distorts feature | 22/49 | 45 | 8/25 | 32 | 2/34 | 6 | 0/17 | 0 |
| Vocal Fold Edge | ||||||||
| Dark image obscures feature | 0/87 | 0 | 2/54 | 4 | 0/19 | 0 | 0/8 | 0 |
| Image quality obscures feature | 37/87 | 43 | 23/54 | 43 | 0/19 | 0 | 0/8 | 0 |
| Asynchronicity obscures feature | 27/87 | 31 | 4/54 | 7 | 10/19 | 53 | 0/8 | 0 |
| Scope angle obscures/distorts feature | 7/87 | 8 | 6/54 | 11 | 1/19 | 5 | 0/8 | 0 |
| Anatomy/Physiology-Based Reasons | ||||||||
| Mucosal Wave | ||||||||
| Anatomical structure obscures feature | 19/102 | 19 | 38/104 | 37 | 8/51 | 16 | 5/19 | 26 |
| Mucus | 10/102 | 10 | 17/104 | 16 | 0/51 | 0 | 0/19 | 0 |
| Multiple vibratory segments complicate rating | 0/102 | 0 | 2/104 | 2 | 0/51 | 0 | 2/19 | 11 |
| Other | 15/102 | 15 | 13/104 | 13 | 5/51 | 10 | 3/19 | 16 |
| Amplitude | ||||||||
| Anatomical structure obscures feature | 21/109 | 19 | 20/68 | 29 | 7/21 | 33 | 2/7 | 29 |
| Mucus | 2/109 | 2 | 10/68 | 15 | 0/21 | 0 | 0/7 | 0 |
| Multiple vibratory segments complicate rating | 0/109 | 0 | 0/68 | 0 | 0/21 | 0 | 0/7 | 0 |
| Other | 10/109 | 9 | 12/68 | 18 | 3/21 | 14 | 1/7 | 14 |
| Left-Right Phase Asymmetry | ||||||||
| Anatomical structure obscures feature | 4/49 | 8 | 0/25 | 0 | 5/34 | 15 | 4/17 | 24 |
| Mucus | 0/49 | 0 | 2/25 | 8 | 0/34 | 0 | 0/17 | 0 |
| Multiple vibratory segments complicate rating | 0/49 | 0 | 3/25 | 12 | 1/34 | 3 | 2/17 | 12 |
| Other | 0/49 | 0 | 7/25 | 28 | 5/34 | 15 | 4/17 | 24 |
| Vocal Fold Edge | ||||||||
| Anatomical structure obscures feature | 18/87 | 21 | 2/54 | 4 | 8/19 | 42 | 3/8 | 38 |
| Mucus | 12/87 | 14 | 14/54 | 26 | 0/19 | 0 | 0/8 | 0 |
| Multiple vibratory segments complicate rating | 0/87 | 0 | 2/54 | 4 | 0/19 | 0 | 0/8 | 0 |
| Other | 1/87 | 1 | 13/54 | 24 | 5/19 | 26 | 5/8 | 63 |