Table 1.

Relative haemodynamic response to SD for the various experimental phases and their duration.

A
				Relative CBV responses to SD
Group	Dose	Phase	# of measurements	Hyperemia	Oligemia	Time of hyperemia	Time of oligemia
First group, n = 5	2 mg/kg/h	Before	80	21.3 ± 1.1%	− 10.2 ± 2.8%	3.02 min ± 23 s	11.03 min ± 66 s
		During	46	14.0 ± 1.3%	− 13.9 ± 3.4%	2.34 min ± 25 s	8.26 min ± 77 s
		After	64	13.7 ± 1.2%	− 10.6 ± 3.0%	2.21 min ± 24 s	9.16 min ± 69 s
Second group, n = 5	4 mg/kg/h	Before	80	18.6 ± 1.1%	− 17.9 ± 2.8%	4.00 min ± 23 s	11.06 min ± 66 s
		During	–	–	–	–	–
		After	62	12.3 ± 1.2%	− 18.5 ± 3.0%	3.35 min ± 24 s	8.44 min ± 70 s
B
				Relative arterial diameter responses to SD
Group	Dose	Phase	# of measurements	Vasodilation	Vasoconstriction	Post-SD	Time of dilation
First group, n = 5	2 mg/kg/h	Before	40	39.5 ± 4.9%	− 14.3 ± 2.8%	4.1 ± 2.2%	1.90 min ± 8 s
		During	23	20.4 ± 5.5%	− 13.9 ± 3.3%	5.5 ± 2.9%	1.21 min ± 10 s
		After	32	15.3 ± 5.1%	− 11.4 ± 2.9%	5.7 ± 2.4%	1.36 min ± 9 s
Second group, n = 5	4 mg/kg/h	Before	40	45.0 ± 4.9%	− 13.3 ± 2.8%	6.6 ± 2.2%	2.23 min ± 8 s
		During	–	–	–	–	–
		After	31	24.1 ± 5.1%	− 13.2 ± 3.0%	1.7 ± 2.5%	1.33 min ± 9 s
C
					Relative CBF and CBV responses to SD
Group	Dose	Method	Phase	# of SDs	Hyperemia	Time of hyperemia
Second group, n = 4	4 mg/kg/h	LDF	Before	16	120.4 ± 59.6%	5.83 min ± 90 s
			During	–	–	–
			After	16	104.4 ± 50.7%	3.40 min ± 90 s
		IOS	Before	16	12.8 ± 4.1%	3.34 min ± 60 s
			During	–	–	–
			After	16	9.0 ± 2.3%	2.55 min ± 60 s

Values are expressed as mean and standard deviation.

CBF: cerebral blood flow; CBV: cerebral blood volume; IOS: intrinsic optical signal imaging; LDF: laser-Doppler flowmetry; SD: spreading depolarization.