Table 1:

Patient demographics, clinical presentation, and angiographic features of the treated dAVFsa

Patient demographics
    Total No. of patients22
    Patient age (yr)55 ± 15
    Male/female ratio1:1
Clinical presentation
    Symptomatic patients22 (100%)
    Hemorrhage1 (4.6%)
    Preinterventional mRS1 ± 1
dAVF location
    Transverse and/or sigmoid sinus19 (86.4%)
    Superior sagittal sinus2 (9.1%)
    Marginal sinus1 (4.6%)
dAVF classification
    Cognard I7 (31.8%)
    Cognard IIa6 (27.3%)
    Cognard IIa+b9 (40.9%)
    Borden I13 (59.1%)
    Borden II9 (40.9%)
Feeder territories
    Middle meningeal artery21 (95.5%)
    Occipital artery21 (95.5%)
    Internal carotid artery (dural branches)19 (86.4%)
    Vertebral artery (dural branches)14 (63.6%)
    Superficial temporal artery11 (50.0%)
Other angiographic features
    Bilateral feeders13 (59.1%)
    No. of feeder territories5 ± 2
    ≥20 Feeding arteriesb19 (86.4%)
    <20 Feeding arteriesb3 (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).