Comparison of CTA classification and gold standard histologic classification of type of atherosclerotic plaque and stage of lesion development according to the system derived from the American Heart Association (AHA) classification system
| Histologic Classification | Total | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Type of Plaque | 0 | I–II | III | IV–Va | Vb | Vc | VIa | VIb | VIc | ||
| 0 | 12 | 2 | 14 | ||||||||
| I–II | 4 | 16 | 8 | 28 | |||||||
| III | 8 | 35 | 9 | 6 | 1 | 59 | |||||
| IV–Va | 29 | 29 | |||||||||
| CTA Classification | Vb | 26 | 26 | ||||||||
| Vc | 9 | 2 | 15 | 1 | 5 | 32 | |||||
| VIa | 1 | 1 | 13 | 15 | |||||||
| VIb | 1 | 8 | 9 | ||||||||
| VIc | 0 | ||||||||||
| Total | 16 | 26 | 52 | 41 | 26 | 23 | 15 | 13 | 0 | 212 | |
Note:—CTA indicates CT angiography.