Composite results for signal intensity–to-noise ratios and conspicuity

Patient	170 mAs		90 mAs		170 mAs		90 mAs		GM Conspicuity		GM CNR
Patient	GM	SD	GM	SD	WM	SD	WM	SD	90 mAs	170 mAs	90 mAs	170 mAs
1	30.20	4.07	30.70	4.95	15.40	4.24	16.60	5.22	0.85	0.96	1.96	2.52
2	33.90	4.09	33.80	4.68	23.90	3.27	23.30	4.69	0.45	0.42	1.58	1.91
3	30.00	3.87	29.90	4.93	22.40	3.55	21.70	4.84	0.38	0.34	1.19	1.45
4	35.10	3.91	35.30	4.94	22.30	3.31	21.90	4.44	0.61	0.57	2.02	2.50
5	30.40	3.89	33.60	5.33	23.20	3.96	23.10	5.20	0.45	0.31	1.41	1.30
6	29.90	3.66	30.40	5.53	21.60	2.95	21.90	4.12	0.39	0.38	1.23	1.77
7	33.20	3.40	35.10	3.85	25.00	2.95	25.90	4.39	0.36	0.33	1.58	1.82
8	31.80	3.57	31.30	5.15	21.60	3.62	22.20	4.39	0.41	0.47	1.34	2.01
9	32.60	3.53	32.10	4.76	25.80	2.60	24.80	3.86	0.29	0.26	1.19	1.55
10	25.60	2.89	25.80	4.08	22.10	3.30	22.90	5.33	0.13	0.16	0.43	0.80
11	33.30	3.22	32.90	4.30	24.10	2.87	25.10	4.35	0.31	0.38	1.28	2.13
12	32.60	3.54	34.40	5.80	22.40	3.14	23.00	4.81	0.50	0.46	1.51	2.16
13	31.10	3.28	33.60	6.42	23.70	2.94	24.60	4.92	0.37	0.31	1.11	1.68
14	31.10	3.30	34.50	4.93	25.00	3.51	24.80	5.16	0.39	0.24	1.36	1.27
15	29.90	3.57	31.60	4.61	25.70	3.73	24.30	5.67	0.30	0.16	1.00	0.81
16	33.60	3.65	32.50	4.72	19.50	3.44	18.80	4.73	0.73	0.72	2.05	2.81
17	33.00	3.51	34.30	4.02	24.20	3.28	24.20	3.86	0.42	0.36	1.81	1.83
18	36.80	3.61	34.40	5.50	27.20	3.14	26.60	4.44	0.29	0.35	1.10	2.01
19	31.90	3.87	33.30	5.59	23.40	2.99	23.70	5.07	0.41	0.36	1.27	1.74
20	31.30	3.18	32.80	4.08	25.10	2.96	25.40	3.86	0.29	0.25	1.32	1.43