Table 5.

CT angiography scanning parameters according to child’s weight

	<15 kg	15–24 kg	25–34 kg	35–44 kg	45–55 kg
kVp	100	100	100	100	100
Effective mAs	20	25	35	40	50
Collimation (mm)	0.75	0.75	0.75	0.75	0.75
Scan slice width (mm)	1	1	1	1	1
Table feed (mm)	15	15	15	15	15
Scan time (s)	0.75	0.75	0.75	0.75	0.75
Calculated Effective Dose (mSv)–CT EXPO	1.0	1.26	1.76	2.0	2.5