Table 4.
Rates of Downstream ICA, Finding of No Obstructive CAD, Coronary Revascularization, and Procedural Functional Guidance
| Group | Period 1 | Period 2 | Period 3 |
|---|---|---|---|
| All patients, n | 1332 | 800 | 1391 |
| ICA | 172 (12.9) | 107 (13.4) | 190 (13.7) |
| No obstructive CAD | 52 (3.9) | 32 (4.0) | 32 (2.3) |
| Coronary revascularization | 72 (5.4) | 47 (5.9) | 102 (7.3) |
| ≥1 functional testa | 268 (20.1) | 204 (25.5) | 321 (23.1) |
| ICA, n | 172 | 107 | 190 |
| No obstructive CAD | 52 (30.2) | 32 (29.9) | 32 (16.8) |
| Coronary revascularization | 72 (41.9) | 47 (43.9) | 102 (53.7) |
| ≥1 functional testa | 61 (35.5) | 63 (58.9) | 110 (57.9) |
| Coronary revascularization, n | 72 | 47 | 102 |
| ≥1 functional testa | 23 (31.9) | 26 (55.3) | 61 (59.8) |
Values are numbers (proportions). CAD indicates coronary artery disease; ICA, invasive coronary angiography.
a
Myocardial perfusion imaging, coronary computed tomography angiography–derived fractional flow reserve, and/or fractional flow reserve. Time period 1, May 2013 to April 2014; period 2, May 2014 to December 2014; period 3, January 2015 to December 2015.