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. 2012 Jan;41(1):30–36. doi: 10.1259/dmfr/30177908

Table 3. Comparison of effective dose (μSv) for several scan protocols using the i-CAT Next Generation and i-CAT Classic^13,16,19,20.

		Current study	Ludlow and Ivanovic¹³	Ludlow and Ivanovic¹³	Ludlow et al¹⁶	Roberts et al²⁰	Loubele et al¹⁹
Program	Tissue weighting factor	i-CAT Next Generation	i-CAT Next Generation	i-CAT Classic	i-CAT Classic	i-CAT Classic	i-CAT Classic
Full head (0.4 voxel)^a	ICRP 1990	47	37		134.4	92.8	-
Full head (0.4 voxel)^a	ICRP 2007	78	74		193.4^b	182.1	82
13 cm (0.4 mm voxel)	ICRP 1990	44	36	29	68.7	39.5
13 cm (0.4 mm voxel)	ICRP 2007	77	87	69	104.5^b	110.5
6 cm mandible (0.4 mm voxel)	ICRP 1990	35				23.9	-
6 cm mandible (0.4 mm voxel)	ICRP 2007	58				75.3	34
6 cm mandible (0.2 mm voxel)	ICRP 1990	69				47.2	-
6 cm mandible (0.2 mm voxel)	ICRP 2007	113				148.5	64
6 cm maxilla (0.4 mm voxel)	ICRP 1990	18				9.7	-
6 cm maxilla (0.4 mm voxel)	ICRP 2007	32				36.5	45
6 cm maxilla (0.2 mm voxel)	ICRP 1990	35				18.5	-
6 cm maxilla (0.2 mm voxel)	ICRP 2007	60				68.3	77

^aHeight 17 cm for i-CAT Next Generation and 22 cm for i-CAT Classic

^{^b}Based on proposed ICRP 2005 tissue weighting factors