Corrigendum

Paravascular spaces at the brain surface: Low resistance pathways for cerebrospinal fluid flow. Bedussi B, Almasian M, de Vos J, et al. J Cereb Blood Flow Metab. Epub ahead of print 1 January 2017. DOI: 10.1177/0271678X17737984.

An error appears in Table 2 of the above article. The blood velocity values represent data in mm/s rather than µm/s. The correct table is shown below.

Table 2.

Blood speed and diameter parameters.

	Mean V (mm/s)	Median V (mm/s)	Mean D (µm)	Median D (µm)	Relative change D %
N1	5.5 ± 0.9	5.6 ± 0.8	33.8 ± 0.2	33.8 ± 0.2	10.0 ± 3.0
N2	3.6 ± 1.0	3.9 ± 0.8	39.0 ± 2.3	39.0 ± 2.3	6.0 ± 2.0
N3	3.0 ± 0.3	3.1 ± 0.2	21.1 ± 0.3	21.1 ± 0.3	not pulsatile
N4	0.9 ± 0.8	0.5 ± 0.5	29.2 ± 2.8	29.1 ± 2.8	not pulsatile
N5	3.9 ± 0.5	4.0 ± 0.4	20.6 ± 7.4	20.7 ± 7.4	1.0 ± 1.0

Diameter oscillations are given as percentage of diameter. All values are expressed as mean ± SEM, derived from multiple recordings of each single vessel. Two out of five vessels did not show pulsatility.