Table 2

Scan-rescan reproducibility in 5 multiple sclerosis patients and 5 healthy controls who underwent pre- and post-contrast susceptibility-weighted imaging scan one week apart.

Pre-contrast SWI

ICC

Post-contrast SWI

ICC


ATVV for all vein sizes

0.891

< .001

0.912

< .001

ATVV with diameter < .3 mm

0.812

.002

0.825

.001

ATVV with diameter < .3-.6 mm

0.888

< .001

0.907

< .001

ATVV with diameter < .6-9 mm

0.923

< .001

0.941

< .001

ATVV with diameter > .9 mm

0.935

< .001

0.942

< .001


Venous intracranial fraction

0.791

.002

0.815

.001


Average distance from vein

0.738

.003

0.777

.002


ATVV - apparent total venous volume; mm - millimeters

Intraclass correlation coefficient and p values are presented.

Zivadinov et al. BMC Neurology 2011 11:128   doi:10.1186/1471-2377-11-128

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