Table 3.
Resource use over 12 months
|
Planned invasive test
n=116 |
||
|
Usual care strategy
n=64 |
FFRCT-guided strategy
n=52 |
|
| Non-invasive tests | ||
| Stress ECG | 6 | 12 |
| Stress echo | 3 | 2 |
| Stress nuclear | 1 | 0 |
| MRI | 2 | 0 |
| CTA | 1 | 52 |
| FFRCT | 0 | 25 |
| Invasive procedures | ||
| Diagnostic ICA | 61 | 9 |
| ICA with PCI | 11 | 10 |
| FFRINV | 2 | 1 |
| Intravascular ultrasound | 0 | 0 |
| Optical coherence tomography | 1 | 0 |
| Coronary revascularisation | ||
| Percutaneous intervention | 12 | 10 |
| Stents per patient (mean) | 2.1 | 1.6 |
| Bypass surgery | 4 | 1 |
| Hospital days | 122 | 65 |
| Clinic visits | 20 | 19 |
Data shown as number of times used.
CTA, CT angiography; FFRCT, fractional flow reserve estimated using CT; FFRINV, fractional flow reserve determined by ICA; ICA, invasive coronary angiography; PCI, percutaneous coronary intervention.