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Table 4 Angiographic features

From: Dural arteriovenous fistulas and headache features: an observational study

Angiographic featuresAll
N (%)
CCFs
N (%)
Other DAVFs
N (%)
p value
N4214 (33.3)28 (66.7) 
DAVF side
 Left20 (47.6)5 (35.7)15 (53.6)ns
 Right18 (42.9)7 (50.0)11 (39.3)ns
 Midline4 (9.5)2 (14.3)2 (7.1)ns
Venous drainage
 Dural sinus23 (54.8)10 (71.4)13 (46.4)ns
 Cortical veins14 (33.3)2 (14.3)12 (42.9)ns
 Both4 (9.5)2 (14.3)2 (7.1)ns
 Perimedullary veins1 (2.4)01 (3.6)ns
Dural sinus specification
 Anterior-inferior13 (54.2)11 (100.0)2 (15.4)< 0.001
 Posterior-superior11 (45.8)011 (84.6)ns
 Missing18315 
Drainage
 Anterograde13 (36.1)2 (15.4)11 (47.8)ns
 Retrograde17 (47.2)8 (61.5)9 (39.1)ns
 Both6 (16.7)3 (23.1)3 (13.1)ns
 Missing615 
High flow2 (12.5)1 (8.3)1 (25.0)ns
Concomitant venous ectasia21 (55.3)7 (53.8)14 (56.0)ns
Concomitant sinus thrombosis3 (7.1)1 (7.1)2 (7.1)ns
  1. Abbreviations: CCFs carotid-cavernous fistulas, DAVFs dural arteriovenous fistulas, ns not significant
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