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Table 1: Characteristics and imaging findings in study patients
Features Data
No. of patients 74
Age (yr) Mean, 63.4
Sex 36 Women (48%)
Median time from MRI to angiography (hr) 2.9 (IQR, 1.1–4.7)
FVH present 53/74 (72%)
FVH in arterial territory of ischemia 53/53 (100%)
Location of FVH 
    Sylvian fissure 50/53 (94%)
    Temporal lobe 47/53 (89%)
    Frontal lobe 28/53 (53%)
    Parietal lobe 18/53 (34%)
Discontinuity or gap in FVH 26/53 (49%)
FVH not noted on angiography 21 (28%)
Angiographic findings in FVH-negative cases 
    MCA M1 occlusion 1
    MCA M1 stenosis with anterograde flow 2
    MCA M2 occlusion 2
    Distal (M3 or greater) occlusion 8
    ICA occlusion without MCA occlusion 2
    Vertebrobasilar occlusion 3
    Posterior cerebral occlusion 2
    Anterior choroidal occlusion 1
Note:—MRI indicates MR imaging; FVH, fluid-attenuated inversion recovery vascular hyperintensities; MCA, middle cerebral artery; ICA, internal carotid artery.