Table 2.
CCTA results: prevalence of coronary dominance in the study population
| CCTA findings | Total (N = 6382) | Right dominant (n = 5817) | Left dominant (n = 565) | P-value |
|---|---|---|---|---|
| Agatston score (mean ± SD)a | 141.3 ± 415 | 141.1 ± 420.0 | 144.2 ± 363.0 | <0.001b |
| Number of obstructive vessels | ||||
| None/normal | 3361 (53%) | 3119 (54%) | 242 (43%) | <0.0001 |
| Non-obstructive | 1788 (28%) | 1591 (27%) | 197 (35%) | |
| One-vessel CAD | 636 (10%) | 563 (10%) | 73 (13%) | |
| Two-vessel CAD | 325 (5%) | 289 (5%) | 36 (6%) | |
| Three-vessel/LM CAD | 272 (4%) | 255 (4%) | 17 (3%) | |
| Level of obstructive CAD | ||||
| Normal | 3361 (53%) | 3119 (54%) | 242 (43%) | <0.0001 |
| Non-obstructive (1–49%) | 1788 (28%) | 1591 (27%) | 197 (35%) | |
| Obstructive CAD (50–70%) | 457 (7%) | 408 (7%) | 49 (9%) | |
| Severe obstructive CAD (>70%) | 776 (12%) | 699 (12%) | 77 (14%) | |
| Left main >50% | 85 (1%) | 76 (1%) | 9 (2%) | 0.5423 |
| LAD >50% | 939 (15%) | 834 (14%) | 105 (19%) | 0.0067 |
| LCx >50% | 465 (7%) | 410 (7%) | 55 (10%) | 0.0203 |
| RCA >50% | 602 (9%) | 576 (10%) | 26 (5%) | <0.0001 |
Data are presented as mean (±SD) or n (%). Patients with a balanced coronary artery system were excluded from the analysis.
CCTA, coronary computed tomographic angiography; CAD, coronary artery disease; LCx, left circumflex artery; RCA, right coronary artery; LM, left main artery; LAD, left anterior descending artery.
aMissing in 1309 patients.
bP value given for median Agatston score (non-normal distribution of data).