Table 4. Qualitative IQ analysis between Manual and Automatic positioning group.
| Qualitative IQ | R1 | R2 | k-value | p-value (MP vs AP) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Scores | 1 | 2 | 3 | 4 | 5 | Mean (SD) | 1 | 2 | 3 | 4 | 5 | Mean (SD) | R1 | R2 | |
| MP group | |||||||||||||||
| IN | 0 | 0 | 0 | 128 | 15 | 4.10 (0.31) | 0 | 0 | 0 | 127 | 16 | 4.11 (0.32) | 0.98 | <0.05 | <0.05 |
| IA | 0 | 0 | 0 | 03 | 140 | 4.98 (0.15) | 0 | 0 | 0 | 03 | 140 | 4.98 (0.15) | 1.00 | 0.652 | 0.652 |
| IS | 0 | 0 | 0 | 20 | 123 | 4.86 (0.34) | 0 | 0 | 0 | 20 | 123 | 4.86 (0.35) | 0.97 | <0.05 | <0.05 |
| OIQ | 0 | 0 | 0 | 132 | 11 | 4.08 (0.26) | 0 | 0 | 0 | 131 | 12 | 4.08 (0.28) | 0.97 | <0.05 | <0.05 |
| AP group | |||||||||||||||
| IN | 0 | 0 | 0 | 03 | 140 | 4.98 (0.15) | 0 | 0 | 0 | 02 | 141 | 4.99 (0.12) | 0.88 | - | - |
| IA | 0 | 0 | 0 | 02 | 141 | 4.99 (0.12) | 0 | 0 | 0 | 02 | 141 | 4.99 (0.12) | 1.00 | ||
| IS | 0 | 0 | 0 | 04 | 139 | 4.97 (0.17) | 0 | 0 | 0 | 01 | 142 | 4.98 (0.15) | 0.92 | ||
| OIQ | 0 | 0 | 0 | 05 | 138 | 4.97 (0.19) | 0 | 0 | 0 | 04 | 139 | 4.97 (0.17) | 0.94 | ||
IQ image quality, IN image noise, IA image artifacts, IS image sharpness, OIQ overall image quality, MP manual positioning, AP automatic positioning, R1 Reader1, R2 reader 2, SD standard deviation.