Table 4.

Interscan variability of the spectroscopic ratios

	Ratios
	RBC:barrier		RBC:gas		Barrier:gas
Subject	Scan 1	Scan 2	Scan 1	Scan 2	Scan 1	Scan 2
1	0.47	0.41	0.0024	0.0026	0.0050	0.0065
2	0.47	0.37	0.0030	0.0026	0.0064	0.0070
3	0.36	0.32	0.0025	0.0020	0.0070	0.0063
4	0.80	0.78	0.0029	0.0032	0.0036	0.0041
6	0.43	0.40	0.0030	0.0034	0.0069	0.0085
7	0.65	0.63	0.0050	0.0059	0.0077	0.0095
8	0.53	0.47	0.0072	0.0091	0.0136	0.0194
9	0.70	0.59	0.0063	0.0035	0.0091	0.0060
11	0.53	0.54	0.0042	0.0041	0.0080	0.0078