Decreased brain venous vasculature visibility on susceptibility-weighted imaging venography in patients with multiple sclerosis is related to chronic cerebrospinal venous insufficiency

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

ISSN: 1471-2377