Table 3.
The mean, standard deviation (SD), median and inter-quartile range (IQR) of the confidence scores and 3D-MRCP quality scores from each reader among cases the reader felt did and did not have a correct diagnosis of choledocholithiasis. P values are calculated from the exact Mann-Whitney tests used to compare cases the reader felt did and did have a correct finding of common bile duct stones in terms of scores.
| Reader | Image Type | CBD Stone Diagnosis Incorrect | CBD Stone Diagnosis Correct | P Value | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Median | IQR | Mean | SD | Median | IQR | |||
| Confidence Scores | ||||||||||
| 1 | Non-contrast | 3.86 | 0.69 | 4.0 | 1.0 | 4.04 | 0.92 | 4.0 | 2.0 | 0.471 |
| 1 | MRCP/Contrast | 4.11 | 0.78 | 4.0 | 1.5 | 4.51 | 0.69 | 5.0 | 1.0 | 0.089 |
| 2 | Non-Contrast | 3.82 | 1.25 | 4.0 | 2.0 | 4.21 | 0.94 | 4.5 | 1.0 | 0.345 |
| 2 | MRCP/Contrast | 4.30 | 0.95 | 5.0 | 2.0 | 4.23 | 1.07 | 5.0 | 1.0 | 0.906 |
|
3D-MRCP Quality Scores | ||||||||||
| 1 | MRCP/Contrast | 3.11 | 1.27 | 3.0 | 2.0 | 3.78 | 1.23 | 4.0 | 2.0 | 0.107 |
| 2 | MRCP/Contrast | 2.80 | 1.40 | 3.0 | 3.0 | 3.19 | 1.05 | 3.0 | 1.5 | 0.278 |