CT Parameters
Scan type | Total delivered (mAs) | Total DLP (mGy ⋅ cm) | Type | Tube potential (kV) | mAs | Reference quality milliamperage | CT dose index volume (mGy) | DLP mGy ⋅ cm | Rotation time (s) | Section collimation (mm) | Figure |
High dose | 1,628 | 190 | Topogram | 120 | 30 | mA | 5.3 | 0.6 | 6/7 | ||
HR | 120 | 9.09 | 190 | 0.5 | |||||||
Low dose | 854 | 89 | Topogram | 120 | 35 | mA | 5.3 | 0.62 | 7 | ||
HR | 50 | 3.80 | 89 | 0.5 |
DLP = dose–length product; total DLP = DLP of entire examination (estimated radiation exposure).