Table 2.
CTA results stratified by ACAOS revascularization
| All patients (n = 103) | No Revasc (n = 83) | Revasc (n = 20) | P-value | |
|---|---|---|---|---|
| ACAOS features* | ||||
| Proximal vessel morphology | ||||
| Normal | 47 (46%) | 43 (52%) | 4 (20%) | 0.06 |
| Oval (<50% narrowing) | 28 (27%) | 20 (24%) | 8 (40%) | |
| Slit-like (≥50% narrowing) | 22 (21%) | 15 (18%) | 7 (35%) | |
| Uninterpretable | 6 (6%) | 5 (6%) | 1 (5%) | |
| % Proximal narrowing, (Δ min diameter), median (IQR) | 9% (−14%, 32%) | 4% (−17%, 24%) | 40% (−19%, 60%) | 0.006 |
| Length of narrowing, mm | 4.2 ± 5.4 | 3.4 ± 5.1 | 7.3 ± 6.0 | 0.005 |
| Interarterial course, n (%) | 43 (42%) | 29 (67%) | 14 (33%) | 0.004 |
| Intramural, n (%) | ||||
| Not present | 64 (62%) | 56 (67%) | 8 (40%) | 0.004 |
| Present | 31 (30%) | 19 (23%) | 12 (60%) | |
| Indeterminate | 8 (8%) | 8 (10%) | 0 (0%) | |
| Acute angle take-off <45°, n (%) | 74 (72%) | 57 (69%) | 17 (85%) | 0.12 |
| Take-off level | ||||
| Below aortic valve commissure | 64 (62%) | 54 (65%) | 10 (50%) | 0.21 |
| At or above commissure | 39 (38%) | 29 (35%) | 10 (50%) | |
| Take-off type | ||||
| Separate ostia | 68 (66%) | 55 (66%) | 13 (65%) | 0.31 |
| Shared ostia | 18 (17%) | 13 (16%) | 5 (25%) | |
| Branch vessel | 15 (15%) | 14 (17%) | 1 (5%) | |
| Uninterpretable | 2 (2%) | 1 (1%) | 1 (5%) | |
| CAD severity, n (%) | ||||
| No CAD | 45 (44%) | 37 (45%) | 8 (40%) | 0.02 |
| Non-obstructive (1–49%) | 34 (33%) | 30 (36%) | 4 (20%) | |
| Moderate (50–69%) | 7 (7%) | 7 (8%) | 0 (0%) | |
| Severe (≥70%) | 14 (14%) | 7 (8%) | 7 (35%) | |
| Uninterpretable | 3 (3%) | 2 (2%) | 1 (5%) | |
| Any CAD ≥50% stenosis | 21 (20%) | 14 (17%) | 7 (35%) | 0.07 |
CAD, coronary artery disease; CTA, computed tomographic angiography; Revasc, revascularization of anomalous coronary artery arising from the opposite sinus (ACAOS). Values are mean ± standard deviation, or n (%), unless otherwise noted.