Longitudinal Assessment of Motor Recovery of Contralateral Hand after Basal Ganglia Infarction Using Functional Magnetic Resonance Imaging

Table 1

Results of serial BOLD-fMRI associated with active finger movement.

Patient number	Site of infarction	Examination sequence	Duration from onset	Phase	Muscle strength	Fugl-Meyer score	Activated regions	Activation intensity	Activation range
1	Right basal ganglia	1	1 day	Acute	0	12	Right SMC	7.21	5
		2	7 months	Chronic	I	19	Right SMC	8.4	5
							Right cerebellum	7.72	6
2	Left basal ganglia	1	3 days	Acute	0	4	Bilateral SMA	6.45	7
		2	2 months	Chronic	I	16	Left SMC	5.35	14
							Right SMC	4.64	5
							Right cerebellum	5.22	5
3	Right basal ganglia	1	3 days	Acute	II	39	Left SMC	12.41	33
							Left cerebellum	12.79	42
							Right cerebellum	12.14	59
		2	3 months	Chronic	IV	60	Right SMC	9.55	9
							Left SMC	14.3	52
							Right cerebellum	9.88	11
							Bilateral SMA	7.99	13
4	Left basal ganglia	1	1 day	Acute	I	10	Left SMC	9.41	13
							Right SMC	8.74	5
		2	3 months	Chronic	I	8	Left SMC	6.58	12
							Left PPC	6.62	8
							Left cerebellum	6.78	14
		3	12 months	Chronic	0	6	Bilateral SMA	4.85	19
							Left PFC	5.81	14

BOLD-fMRI, blood-oxygen-level dependent-functional magnetic resonance imaging; SMC, sensorimotor cortex; SMA, supplementary motor area; PPC, posterior parietal cortex; PFC, prefrontal cortex.
As the patient with severe motor disability (the muscle strength being grade 0) was incapable of performing voluntary finger opposition movement, they were asked to imagine the finger opposition movement of the affected hand.