Table 2:

Peritherapeutic circulation times and MR imaging findings between those with an ipsilateral stenotic transverse sinus (group A) and those with a normal transverse sinus (group B)

	Group A (n = 15)	Group B (n = 34)	P Value
DSA
Prestent CCT	6.9 ± 1.2	6.2 ± 1.1	.14
Poststent CCT	6.2 ± 1.5	6.2 ± 1.5	.98
ΔCCT	0.65 ± 1.3	−0.12 ± 1.4	.045a
MR imaging
High SI in periventricular white matter	3	0	<.001a
Gyral effacement	2	0	<.001a

Note:—SI indicates signal intensity.

^aStatically significant.