Table 4.
Average reading time per reader for both conventional ABUS reading and reading the CAD-based reading workflow
| Reader (years experience ABUS) | Average reading time ABUS (s) | 95% CI (low, high) | Average reading time CAD-ABUS (s) | 95% CI (low, high) | Percentage decrease | p value | ||
|---|---|---|---|---|---|---|---|---|
| 1 (5) | 171.2 | 156.5 | 186.5 | 166.0 | 150.4 | 181.0 | 3.1 | 0.56 |
| 2 (8) | 145.4 | 132.4 | 159.1 | 136.1 | 124.5 | 149.6 | 6.5 | 0.24 |
| 3 (0) | 146.7 | 132.6 | 162.2 | 123.4 | 113.0 | 134.3 | 15.9 | < 0.001 |
| 4 (5) | 175.2 | 158.7 | 190.8 | 140.8 | 130.2 | 150.1 | 19.7 | 0.001 |
| 5 (5) | 101.2 | 95.7 | 108.4 | 91.2 | 84.7 | 97.7 | 9.9 | 0.008 |
| 6 (5) | 138.6 | 127.1 | 151.1 | 110 | 100.1 | 119.4 | 20.6 | 0.001 |
| 7 (0) | 217.2 | 197.9 | 236.2 | 160.1 | 148.0 | 172.3 | 26.3 | 0.001 |
| 8 (0) | 173.3 | 173.3 | 185.2 | 140.9 | 132.3 | 150.0 | 18.7 | 0.001 |
| Pooled | ||||||||
| Average | 158.3 | 153.0 | 163.6 | 133.4 | 129.2 | 137.6 | 15.7 | < 0.001 |
| Normal | 151.0 | 143.6 | 158.4 | 125.7 | 120.0 | 131.4 | 16.8 | < 0.001 |
| Benign | 163.0 | 152.6 | 173.3 | 134.8 | 126.4 | 143.1 | 17.3 | < 0.001 |
| Malignant | 169.3 | 158.8 | 180.0 | 148.8 | 140.2 | 157.5 | 12.1 | 0.003 |
All readers were faster with CAD software. Six of eight readers were significantly faster ABUS Automated breast ultrasound
CAD Computer-aided detection software