====== Intracranial dural arteriovenous fistula classification ======

For spinal see [[Spinal vascular malformation classification]].
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There are numerous [[intracranial dural arteriovenous fistula ]] classifications. [[Borden]] 
((Borden JA, Wu JK, Shucart WA. A proposed classification
for spinal and cranial dural arteriovenous
fistulous malformations and implications for treatment.
J Neurosurg. 1995; 82:166–179))
and [[Cognard]] 
((Cognard C, Gobin YP, Pierot L, et al. Cerebral dural
arteriovenous fistulas: clinical and angiographic
correlation with a revised classification of venous
drainage. Radiology. 1995; 194:671–680))
are amongst the more widely used grading schemes. Cortical venous drainage is the defining angiographic feature that distinguishes benign (low-grade) from aggressive (high-grade) fistulas. (Borden I, Cognard I, and Cognard IIa are low-grade, all others are high-grade.)

===== Cognard classification =====


[[Cognard classification]]: 
Probably the most widely used classification system for [[dural arteriovenous malformation]]s. 

===== Djindjian Classification =====


[[Djindjian Classification]] 

===== Borden classification =====


[[Borden classification]]

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{{::duralarteriovenousfistulaclassification.jpg|}}
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[[Anterior cranial fossa dural arteriovenous fistula]]

[[Posterior fossa dural arteriovenous fistula]]


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[[De novo dural arteriovenous fistula]].
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[[Cavernous sinus dural arteriovenous fistula]].

[[Ethmoidal dural arteriovenous fistula]]...

Cavernous sinus DAVFs are the most common site in the series of Signorelli et al. other locations in order of frequency are transverse-sigmoid sinus, tentorial, anterior cranial fossa, spinal and foramen magnum
((Signorelli, F. et al. Diagnosis and management of dural arteriovenous fistulas: A 10 years single-center experience Clinical Neurology and Neurosurgery , Volume 128 , 123 - 129)). 

[[Petrous apex dural arteriovenous fistula]].

[[Superior petrosal sinus dural arteriovenous fistula]] 

[[Sphenoparietal Dural Arteriovenous Fistula]].