Table 3.

Guidelines for tube voltage (kVp) and effective tube current (mA) for 16-slice CT scanners [6]

Weight	CTDIvol	kVp*	GE	Philips	Siemens	Toshiba
			16 × 1.25 mm	16 × 0.75 mm	16 × 0.75 mm	16 × 1 mm,M
4–9 kg	2.1	100 (90)	80	120	80	50
10–19 kg	3.0	100 (90)	110	170	115	70
20–29 kg	3.8	100 (90)	140	215	145	90
30–39 kg	4.1	100 (90)	150	235	155	95
40–49 kg	4.9	120	100	125	120	95
50–64 kg	5.9	120	120	150	140	115

*tube voltage (kVp) for Philips scanners between brackets