Prevalence of features for each level of CAS
| 1 | 2 | 3 | 4 | |
|---|---|---|---|---|
| Training set (n = 196) | ||||
| No. | 16 | 90 | 42 | 48 |
| Calcification (%) | 12.5 | 80.0 | 78.6 | 72.9 |
| LRNC (%) | 0.0 | 30.0 | 100.0 | 100.0 |
| IPH (%) | 0.0 | 1.1 | 28.6 | 70.8 |
| Fibrous cap status | ||||
| Thick (%) | 0.0 | 21.1 (66.7)a | 23.8 | 12.5 |
| Thin (%) | 0.0 | 10.0 (33.3)a | 69.1 | 64.6 |
| Ruptured (%) | 0.0 | 0.0 | 7.1 | 22.9 |
| Testing Set (n = 138) | ||||
| No. | 17 | 62 | 34 | 25 |
| Calcification (%) | 17.6 | 83.9 | 79.4 | 80.0 |
| LRNC (%) | 11.8 | 43.5 | 100.0 | 100.0 |
| IPH (%) | 0.0 | 0.0 | 29.4 | 68.0 |
| Fibrous cap status | ||||
| Thick (%) | 11.8 (100.0)a | 30.7 (66.7)a | 29.4 | 4.0 |
| Thin (%) | 0.0 | 14.5 (33.3)a | 64.7 | 44.0 |
| Ruptured (%) | 0.0 | 0.0 | 5.9 | 52.0 |
a Lesions with an LRNC.