Table 2.

Average post-contrast signal enhancement E_t^ave and linear regression analysis results from phantoms, healthy volunteers and 60 mild stroke patients

	Tissue	Etave	Slope	R2	P value
Phantom	T1=982 ms	0.001±0.004	0.00005	0.01	.61
	T1=2800 ms	0.012±0.061	0.00137	0.74	<.01
Volunteer	Deep gray matter	−0.006±0.003	0.00009	0.05	.27
	Cortical gray matter	0.001±0.004	0.00031	0.57	<.01
	White matter	−0.007±0.002	−0.00001	0.00	.86
	CSF	0.115±0.030	0.00250	0.55	<.01
	Blood	0.013±0.005	0.00045	0.54	<.01
Patient	Deep gray matter	0.076±0.026	−0.00073	0.79	<.01
	Cortical gray matter	0.067±0.033	−0.00072	0.89	<.01
	White matter	0.016±0.010	−0.00033	0.87	<.01
	CSF	0.150±0.107	0.00369	0.97	<.01
	Blood	1.557±0.433	−0.01124	0.49	<.01