CT-first (n=2308) | Patients without a CT-first strategy (n=10 237) | P value | |
Anatomical imaging (%) | 392 (17.0) | 1435 (14.0) | <0.001 |
Perfusion imaging (%) | 70 (3.0) | 290 (2.8) | 0.652 |
Coronary interventions (%) | 197 (8.5) | 581 (5.7) | <0.001 |
Stress ECG at CCN (%) | 403 (17.5) | 1600 (15.6) | 0.032 |
Coronary angiography (%) | 373 (16.2) | 1086 (10.6) | <0.001 |
Cardiac CT (%) | 23 (1.0) | 429 (4.2) | <0.001 |
Time (days) between chest pain consult – stress ECG (median (IQR)) | 301.00 (91.00–759.00) | 112.00 (25.00–597.75) | <0.001 |
Time (days) between chest pain consult – anatomical imaging (median (IQR)) | 57.00 (37.75–87.25) | 49.00 (20.00–119.50) | <0.001 |
Time (days) between chest pain consult – perfusion imaging (median (IQR)) | 74.00 (49.25–162.25) | 36.50 (17.00–91.00) | <0.001 |
Time (days) between chest pain consult – coronary intervention (median (IQR)) | 65.00 (42.00–98.00) | 51.00 (21.00–102.00) | <0.001 |
Distribution of diagnostics and therapeutics during follow-up in patients with a CT-first strategy and the population without a CT-first strategy. Anatomical imaging comprises cardiac CT and coronary angiography. Perfusion imaging includes cardiac PET, SPECT and MRI. Coronary interventions are coronary artery bypass grafts and percutaneous coronary interventions.
CCN, Cardiology Centers of the Netherlands; MRI, magnetic resonance imaging; PET, positron emission tomography; SPECT, single-photon emission computed tomography.