Discrepancy rate by exam type
| Exam Type | Discrepant Exams (% of Discrepant Exams) | Total Exams Read (% Discrepant)a |
|---|---|---|
| CT Total | 131 (91.6) | 3102 (4.22 [3.49–4.94]) |
| CT head | 103 (72.0) | 2748 (3.75 [3.02–4.48]) |
| CT face/orbit/neck | 20 (14.0) | 213 (9.39 [5.24–13.54]) |
| CT spine | 8 (5.6) | 141 (5.67 [1.5–9.84]) |
| MRI total | 12 (8.4) | 394 (3.04 [1.22–4.86]) |
| MRI brain | 7 (4.9) | 211 (3.32 [0.66–5.98]) |
| MRI spine | 4 (2.8) | 113 (3.54 [0.0–7.39]) |
| MRA | 1 (0.7) | 70 (1.43 [0.0–4.92]) |
| Total exams | 143 | 3496 |
↵a Discrepancy rate (% [95% CI]). The discrepancy rates for CT scans of the face, orbit, and neck were significantly larger compared with CT head, combined CT head and spine, and MRI. The discrepancy rate was not significantly different comparing MRI and CT, or MRI subcategories.