Table 2.
Selected survey query results.
| Query | Response/Parameter | All observers* n=13 |
Group_A (atlas exposure) n=7 |
Group_B (controls) n=6 |
|---|---|---|---|---|
|
“Do you have specific training or expertise in this anatomic site?” |
“Yes” | 5 (38) | 3 (43) | 2 (33) |
| “No” | 8 (62) | 4 (57) | 4 (67) | |
|
“Please estimate the amount of time you spent on the contouring task alone for this session (minutes)" |
Mean±SD (Range) | 34±12 (18–65) | 30±11 (20–65) | 34±13 (18–60) |
|
“How confident are you in contouring in this anatomical region?” |
“Very confident/Expert” | 1 (8) | 1 (14) | 0 (0) |
| “Somewhat confident/Intermediate” |
10 (77) | 5 (71) | 5 (83) | |
| “Not confident/Novice” | 2 (15) | 1 (14) | 1 (17) | |
|
“Please indicate the relative difficulty of the contouring session” |
1-Easy | 0 (0) | 0 (0) | 0 (0) |
| 2-Somewhat easy | 2 (15) | 1 (14) | 1 (17) | |
| 3-Average | 8 (62) | 5 (71) | 3 (50) | |
| 4-Somewhat difficult | 3 (23) | 1 (14) | 2 | |
| 5-Difficult | 0 (0) | 0 (0) | 0 (0) | |
|
“How clear were the directions for contouring this case?” |
“Unclear” | 1 (8) | 1 (14) | 0 (0) |
| “Somewhat clear” | 2 (15) | 0 (0) | 2 (33) | |
| “Clear” | 5 (39) | 4 (57) | 1 (17) | |
| “Very clear and understood” | 5 (39) | 2 (28) | 3 (50) | |
|
“Please indicate how confident you are that the contours you created for the submitted case are correct.” |
“Not confident” | 0 (0) | 0 (0) | 0 (0) |
| “Somewhat confident” | 7 (54) | 4 (57) | 3 (50) | |
| “Confident” | 6 (46) | 3 (43) | 3 (50) | |
| “Very confident” | 0 (0) | 0 (0) | 0 (0) | |
|
“Did you find the atlas was a useful aid to your contouring of the case?” |
“Not helpful” | - | 0 (0) | - |
| “Somewhat helpful” | - | 4 (57) | - | |
| “Very helpful” | - | 3 (43) | - | |
*
A single user’s contours were not technically amenable for analysis; responses from this user were discarded from survey results.