Table 3.
Hazard ratios or major adverse cardiac events adjusted for myocardial blood flow reserve and perfusion for standard CAC scores and DL-CTAC scores in patients with no prior CAD and available CAC scans (n=2502).
| Category | Standard CAC score | DL-CTAC CAC score | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| CAC = 0 | — | — | — | — | — | — |
| CAC 1–100 | 1.34 | 1.02, 1.75 | 0.037 | 1.30 | 1.00, 1.67 | 0.046 |
| CAC 101–400 | 1.56 | 1.19, 2.05 | 0.001 | 1.72 | 1.34, 2.20 | <0.001 |
| CAC >400 | 2.59 | 2.02, 3.31 | <0.001 | 2.28 | 1.81, 2.86 | <0.001 |
Abbreviations: CI – confidence interval; CAC - coronary calcium score; CTAC – computed tomography attenuation correction; MFR- myocardial flow rate; SDS – summed difference score