Table 4. Mean and variation in absolute perfusion parameters.

		Scheme 1			Scheme 2			Scheme 3			Scheme 4
Parameter	Side	Mean	sB	P	Mean	sB	P	Mean	sB	P	Mean	sB	P
CBV	Ipsilateral	4.2	2.3	0	3.0	2.3	0	2.8	0.72	0	3.1	2.5	0
	Contralateral	4.2	2.4	0	3.0	2.2	0	2.8	0.66	0	3.1	2.5	0
CBF	Ipsilateral	74	62	0	45	53	0	39	7.9	0	46	56	0
	Contralateral	92	75	0	57	68	0	49	11	0	58	73	0
MTT	Ipsilateral	5.4	1.1	0	6.2	2.0	0	6.4	0.17	0	6.2	1.9	0
	Contralateral	3.5	1.2	0	4.1	1.9	0	4.3	0.11	0	4.1	1.8	0
PS	Ipsilateral	0.28	0.23	0.37	0.24	0.34	0.21	0.32	0.05	0.12	0.36	0.49	0.09
	Contralateral	0.21	0.23	0.32	0.18	0.31	0.11	0.25	0.04	0.19	0.27	0.39	0.07

The means, standard deviations (s _B), and P-values of the parameters, compared between slice thicknesses (repeated measures ANOVA). The parameters are subsequently cerebral blood volume (CBV, in mL/100g), cerebral blood flow (CBF, in mL/100g/min), mean transit time (MTT, in s), and permeability-surface area (PS, in mL/100g/min). The s_B is the standard deviation on a parameter due to the difference between slice thicknesses, disregarding the variation due to the difference between patients. A parameter with a P-value <0.05 was considered significantly affected by the slice thicknesses. P-values <0.01 are shown as 0.