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Table 1: Patient demographics, clinical presentation, and angiographic features of the treated dAVFs^{^a}
Patient demographics 
    Total No. of patients 22
    Patient age (yr) 55 ± 15
    Male/female ratio 1:1
Clinical presentation 
    Symptomatic patients 22 (100%)
    Hemorrhage 1 (4.6%)
    Preinterventional mRS 1 ± 1
dAVF location 
    Transverse and/or sigmoid sinus 19 (86.4%)
    Superior sagittal sinus 2 (9.1%)
    Marginal sinus 1 (4.6%)
dAVF classification 
    Cognard I 7 (31.8%)
    Cognard IIa 6 (27.3%)
    Cognard IIa+b 9 (40.9%)
    Borden I 13 (59.1%)
    Borden II 9 (40.9%)
Feeder territories 
    Middle meningeal artery 21 (95.5%)
    Occipital artery 21 (95.5%)
    Internal carotid artery (dural branches) 19 (86.4%)
    Vertebral artery (dural branches) 14 (63.6%)
    Superficial temporal artery 11 (50.0%)
Other angiographic features 
    Bilateral feeders 13 (59.1%)
    No. of feeder territories 5 ± 2
    ≥20 Feeding arteries^{^b} 19 (86.4%)
    <20 Feeding arteries^{^b} 3 (13.6%)
↵a Data are presented as No. (relative frequency in %) or mean ± SD.
↵b Feeding arteries with a length of ≥10 mm (measured from the dural sinus).