Table 3.
Evaluation of scan quality parameters: High and low pitch body CT scans for 111 patients. Significance of group differences was calculated with Wilcoxon signed rank sum test (paired).
| Variable | Low pitch median (IQR) | High pitch median (IQR) | P-value (paired) |
|---|---|---|---|
| Aortic valve quality | 2 (1,3) | 4 (3,4) | <0.0001 |
| Pulmonic valve quality | 2 (1,2) | 3 (2,4) | <0.0001 |
| Mitral valve quality | 2 (2,3) | 4 (3,4) | <0.0001 |
| Tricuspid valve quality | 2 (1,2) | 3 (2,4) | <0.0001 |
| Aortic root quality | 1 (1,2) | 4 (3,4) | <0.0001 |
| Pulmonary artery quality | 3 (2,3) | 4 (4,5) | <0.0001 |
| Interatrial septum quality | 3 (2,3) | 4 (3,4) | <0.0001 |
| Myocardium quality | 2 (1,3) | 4 (3,4) | <0.0001 |
| Pericardial quality | 3 (2,3) | 4 (4,5) | <0.0001 |
| Pulmonary vessels quality | 3 (2,3) | 4 (4,5) | <0.0001 |
| Coronary artery quality | 1 (1,1) | 2 (2,2.5) | <0.0001 |
| Number of coronary segments | 11 (11,11) | 12 (11,13) | <0.0001 |
| Number of diagnostic coronary segments | 2 (0,4) | 9 (6.5,12) | <0.0001 |