Table 4.
Qualitative analysis
| Group A, 5 mL/s | Group B, 2.5 mL/s | p value | ||
|---|---|---|---|---|
| n patients | 103 | 100 | ||
| Patients with diagnostic CCTA, n (%) | 91/103 (88.4%) | 89/100 (89%) | 0.884 | |
| Patients with non-diagnostic CCTA, n (%) | 12/103 (11.6%) | 11/100 (11%) | ||
| Non-diagnostic due to motion artifacts | 10/12 (83.3%) | 10/11 (90.9%) | 0.29 | |
| Non-diagnostic due to inadequate enhancement | 2/12 (16.7%) | 1/11 (9.1%) | ||
| Total segments analyzed | 1441 | 1310 | ||
| Image quality score | ||||
| Excellent, n (%) | 1220/1441 (84.7%) | 949/1310 (72.4%) | ||
| Good, n (%) | 74/1441 (5.1%) | 267/1310 (20.4%) | ||
| Adequate 3, n (%) | 35/1441 (2.4%) | 31/1310 (2.4%) | ||
| Poor (non-evaluable), n (%) | 55/1441 (3.8%) | 63/1310 (4.8%) | ||
| Poor due to motion artifacts | 44/55 (80%) | 47/63 (74.6%) | 0.486 | |
| Poor due to inadequate enhancement | 11/55 (20%) | 16/63 (25.4%) | ||
| Average image quality score per segment (± SD) | 3.9 (± 0.4) | 3.7 (± 0.5) | < 0.001 | |
Data are numbers with percentages in parentheses or mean ± standard deviation. CCTA coronary computed tomography angiography