Biochemical and structural magnetic resonance imaging in chronic stroke and the relationship with upper extremity motor function

Table 2 Comparison in ipsilesional (cortical thickness and metabolite ratios) between the two study groups

	Not improved		Improved		t test
	Mean	SD	Mean	SD	p value	sig.
Ipsilesional cortical thickness	2.48	0.49	2.87	0.44	0.007	HS
Ipsilesional NAA/ Cr ratio (height)	1.54	0.29	1.83	0.28	0.001	HS
Ipsilesional GLX/Cr ratio (height)	0.21	0.17	0.25	0.15	0.346	NS

t test, HS highly significant, NS non-significant, NAA/Crn-acetylaspartate/creatine ratio, GLX/Cr glutamate/creatine ratio