Table 2.
CT examination characteristics and univariate comparisons
| Group A, 5 mL/s (n = 103) | Group B, 2.5 mL/s (n = 100) | p value | |
|---|---|---|---|
| Venous catheter side, n (%) | |||
| Right | 86 (83.5%) | 70 (70%) | 0.031 |
| Left | 17 (16.5%) | 30 (30%) | |
| Catheter location, n (%) | |||
| Antecubital fossa | 89 (86.4%) | 64 (64%) | < 0.001 |
| Forearm | 12 (11.6%) | 19 (19%) | |
| Hand or wrist | 2 (1.9%) | 17 (17%) | |
| Heart rate before injection [bpm] | 67 [16.5] | 69 [14.5] | 0.617 |
| Heart rate during injection [bpm] | 63 [14] | 66 [13] | 0.043 |
| Contrast medium volume [mL] | 70 [8.8] | 40 [10] | < 0.001 |
| Contrast medium extravasation | None | None | |
| Allergy (%) | |||
| Mild | 1 (0.9%) | 2 (1.8%) | 0.973 |
| Moderate | 0 | 0 | |
| Severe | 0 | 0 | |
| CTDIvol | 23 [13.5] | 21.6 [13.6] | 0.540 |
| DLP | 430.7 [266.1] | 392.8 [251.7] | 0.620 |
Data are medians [IQR], or numbers (percentage). Bpm beats per minute, CTDIvol volume computed tomography dose index, DLP dose-length product