Table 4.

High-resolution CT chest scanning parameters according to child’s weight

	<15 kg	15–30 kg	>30 kg
kVp	100	100	100
Effective mAs	20	30	55
Collimation (mm)	1	1	1
Scan slice width (mm)	1	1	1
Table feed (mm)	10	10	10
Scan time (s)	0.36	0.75	0.75
Calculated Effective Dose (mSv)–CT EXPO	0.21	0.32	0.59