Table 1.
Baseline characteristics of patients referred to invasive coronary angiography according to non-invasive testing strategy
| CTA-guided n = 381 |
FFRCT-guided n = 367 |
p-value | |
|---|---|---|---|
| Demographics | |||
| Age | 66 ± 10 | 64 ± 10 | 0.007 |
| Gender, male | 244 (64) | 228 (61) | 0.621 |
| Risk factors | |||
| Diabetes | 53 (14) | 40 (11) | 0.213 |
| Hypertension | 262 (69) | 218 (58) | 0.008 |
| Dyslipidemia | 259 (68) | 236 (63) | 0.289 |
| Current smoker | 268 (70) | 209 (56) | < 0.001 |
| Coronary CTA | |||
| Agatston score, U | 574 (198–1234) [0-6067] | 211 (81–456) [0-3168] | < 0.001 |
| Stenosis severity | |||
| 30–69% | 38 (10) | 319 (87) | < 0.001 |
| 70–89% | 84 (22) | 48 (13) | |
| ≥90% | 75 (20) | 0 (0) | |
| Non evaluable* | 184 (48) | 0 (0) | |
Values given as n (%), mean ± SD or median (interquartile range) [range]
*Due to high calcium (n = 143) or poor image quality (n = 41)
Patients classified according to most severe stenosis
Abbreviations: CTA = computerized tomography angiography; FFRCT=coronary CTA derived fractional flow reserve; ICA = invasive coronary angiography