Table 1.

Patient-specific demographic data and abdominal CT doses

Patient number	Age (years)	Sex (M, F)	Body mass index (kg m−2)	CT dose index volume (mGy)		Dose reduction from standard (%)
				Regular-dose series	Reduced-dose series
1	46	M	25.99	7.89	5.30	33
2	50	F	23.53	8.42	4.71	44
3	54	M	24.20	10.01	5.10	49
4	49	F	20.70	6.55	4.96	24
5	65	M	24.26	8.56	5.38	42
6	54	M	26.96	9.63	5.91	38
7	56	M	28.20	9.49	5.22	45
8	75	F	24.65	8.11	4.91	40
9	72	M	17.50	5.56	4.50	19
10	48	M	28.01	9.96	5.81	42
11	65	M	26.80	10.79	5.89	45
12	44	M	23.17	8.81	5.45	38
13	23	F	18.60	5.59	4.25	24
14	59	F	28.30	7.73	6.25	19
15	39	F	25.21	8.21	4.98	39
16	65	M	24.41	6.60	4.97	25
17	67	F	24.60	7.97	5.07	36
18	55	M	24.22	8.10	5.04	38
19	55	M	21.31	7.96	5.25	34
20	21	F	17.60	5.61	4.01	28
21	57	M	19.62	6.22	3.65	41
22	55	M	19.20	5.86	4.06	30
23	34	F	18.40	5.82	3.95	32
24	55	M	26.91	10.75	5.45	49
25	55	M	26.02	11.70	5.98	49
26	50	M	22.81	6.50	5.06	22
27	46	F	23.20	7.31	5.10	30
Mean	52.4	17 M, 10 F	23.50	7.99	5.04	35.4%

F, female; M, male.