Radiation parameters | Tube voltage (kV) | |||
120 (n = 40) | 120 (n = 95) | 100 (n = 17) | 100 (n = 25) | |
ECG pulsing window (%) | 35–70 | 70–70 | 35–70 | 70–70 |
MinDose | On | On | On | On |
Mean scan length (mm) | 138 (31) | 136 (24) | 129 (13) | 130 (10) |
Mean DLP (mGy.cm) | 905 (421) | 562 (209) | 418 (144) | 221 (97) |
Mean CTDIvol (mGy) | 53 (17) | 34 (11) | 23 (5) | 13 (5) |
Estimated mean radiation dose (mSv) | 15.4 (7.3) | 9.6 (3.6) | 7.1 (2.5) | 3.8 (1.7) |
Results are shown as mean (SD) unless stated otherwise.
CTDIvol, volume computed tomography dose index; DLP, dose–length product.