Coronary artefact grades for the high-pitch versus standard-pitch groups broken down by whole epicardial coronary artery and proximal coronary artery
| High-pitch (n=44) | Standard-pitch (n=51) | p Value | |
| Left anterior descending, n (%) | 0.545 | ||
| 1 | 14 | 13 | |
| 2 | 15 | 23 | |
| 3 | 15 | 15 | |
| Left circumflex artery, n (%) | 0.089 | ||
| 1 | 24 | 18 | |
| 2 | 13 | 16 | |
| 3 | 7 | 17 | |
| Right coronary artery, n (%) | 0.927 | ||
| 1 | 22 | 26 | |
| 2 | 12 | 15 | |
| 3 | 10 | 10 | |
| Proximal left anterior descending, n (%) | 0.402 | ||
| 1 | 6 | 3 | |
| 2 | 11 | 12 | |
| 3 | 27 | 36 | |
| Proximal left circumflex artery, n (%) | 0.006 | ||
| 1 | 18 | 7 | |
| 2 | 12 | 14 | |
| 3 | 14 | 30 | |
| Proximal right coronary artery, n (%) | 0.238 | ||
| 1 | 18 | 13 | |
| 2 | 10 | 12 | |
| 3 | 16 | 26 | |